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refactor(persist): update file_store, sqlite, wallet to use bdk_chain::persist

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Also update examples and remove bdk_persist crate.
This commit is contained in:
Steve Myers 2024-06-01 00:06:20 -05:00
parent 54b0c11cbe
commit 9e97ac0330
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GPG Key ID: 8105A46B22C2D051
39 changed files with 542 additions and 1086 deletions
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1
Cargo.toml
View File

@ -9,7 +9,6 @@ members = [
"crates/esplora", "crates/esplora",
"crates/bitcoind_rpc", "crates/bitcoind_rpc",
"crates/hwi", "crates/hwi",
"crates/persist",
"crates/testenv", "crates/testenv",
"example-crates/example_cli", "example-crates/example_cli",
"example-crates/example_electrum", "example-crates/example_electrum",

3
crates/chain/Cargo.toml
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@ -26,8 +26,7 @@ rand = "0.8"
proptest = "1.2.0" proptest = "1.2.0"
[features] [features]
default = ["std", "miniscript", "persist"] default = ["std", "miniscript"]
std = ["bitcoin/std", "miniscript?/std"] std = ["bitcoin/std", "miniscript?/std"]
serde = ["serde_crate", "bitcoin/serde", "miniscript?/serde"] serde = ["serde_crate", "bitcoin/serde", "miniscript?/serde"]
persist = ["miniscript"]
async = ["async-trait"] async = ["async-trait"]

2
crates/chain/src/keychain/txout_index.rs
View File

@ -207,7 +207,7 @@ impl<K> KeychainTxOutIndex<K> {
impl<K: Clone + Ord + Debug> KeychainTxOutIndex<K> { impl<K: Clone + Ord + Debug> KeychainTxOutIndex<K> {
/// Return a reference to the internal [`SpkTxOutIndex`]. /// Return a reference to the internal [`SpkTxOutIndex`].
/// ///
/// **WARNING:** The internal index will contain lookahead spks. Refer to /// **WARNING**: The internal index will contain lookahead spks. Refer to
/// [struct-level docs](KeychainTxOutIndex) for more about `lookahead`. /// [struct-level docs](KeychainTxOutIndex) for more about `lookahead`.
pub fn inner(&self) -> &SpkTxOutIndex<(K, u32)> { pub fn inner(&self) -> &SpkTxOutIndex<(K, u32)> {
&self.inner &self.inner

2
crates/chain/src/lib.rs
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@ -50,7 +50,7 @@ pub use descriptor_ext::{DescriptorExt, DescriptorId};
mod spk_iter; mod spk_iter;
#[cfg(feature = "miniscript")] #[cfg(feature = "miniscript")]
pub use spk_iter::*; pub use spk_iter::*;
#[cfg(feature = "persist")] #[cfg(feature = "miniscript")]
pub mod persist; pub mod persist;
pub mod spk_client; pub mod spk_client;

299
crates/chain/src/persist.rs
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@ -1,9 +1,6 @@
//! This module is home to the [`Persist`] trait which defines the behavior of a data store //! This module is home to the [`PersistBackend`] trait which defines the behavior of a data store
//! required to persist changes made to BDK data structures. //! required to persist changes made to BDK data structures.
//! //!
//! The [`StagedPersist`] type provides a convenient wrapper around implementations of [`Persist`] that
//! allows changes to be staged before committing them.
//!
//! The [`CombinedChangeSet`] type encapsulates a combination of [`crate`] structures that are //! The [`CombinedChangeSet`] type encapsulates a combination of [`crate`] structures that are
//! typically persisted together. //! typically persisted together.
@ -16,7 +13,6 @@ use bitcoin::Network;
use core::convert::Infallible; use core::convert::Infallible;
use core::default::Default; use core::default::Default;
use core::fmt::{Debug, Display}; use core::fmt::{Debug, Display};
use core::mem;
/// A changeset containing [`crate`] structures typically persisted together. /// A changeset containing [`crate`] structures typically persisted together.
#[derive(Debug, Clone, PartialEq)] #[derive(Debug, Clone, PartialEq)]
@ -92,7 +88,7 @@ impl<K, A> From<indexed_tx_graph::ChangeSet<A, keychain::ChangeSet<K>>>
/// ///
/// `C` represents the changeset; a datatype that records changes made to in-memory data structures /// `C` represents the changeset; a datatype that records changes made to in-memory data structures
/// that are to be persisted, or retrieved from persistence. /// that are to be persisted, or retrieved from persistence.
pub trait Persist<C> { pub trait PersistBackend<C> {
/// The error the backend returns when it fails to write. /// The error the backend returns when it fails to write.
type WriteError: Debug + Display; type WriteError: Debug + Display;
@ -113,7 +109,7 @@ pub trait Persist<C> {
fn load_changes(&mut self) -> Result<Option<C>, Self::LoadError>; fn load_changes(&mut self) -> Result<Option<C>, Self::LoadError>;
} }
impl<C> Persist<C> for () { impl<C> PersistBackend<C> for () {
type WriteError = Infallible; type WriteError = Infallible;
type LoadError = Infallible; type LoadError = Infallible;
@ -132,7 +128,7 @@ impl<C> Persist<C> for () {
/// `C` represents the changeset; a datatype that records changes made to in-memory data structures /// `C` represents the changeset; a datatype that records changes made to in-memory data structures
/// that are to be persisted, or retrieved from persistence. /// that are to be persisted, or retrieved from persistence.
#[async_trait] #[async_trait]
pub trait PersistAsync<C> { pub trait PersistBackendAsync<C> {
/// The error the backend returns when it fails to write. /// The error the backend returns when it fails to write.
type WriteError: Debug + Display; type WriteError: Debug + Display;
@ -155,7 +151,7 @@ pub trait PersistAsync<C> {
#[cfg(feature = "async")] #[cfg(feature = "async")]
#[async_trait] #[async_trait]
impl<C> PersistAsync<C> for () { impl<C> PersistBackendAsync<C> for () {
type WriteError = Infallible; type WriteError = Infallible;
type LoadError = Infallible; type LoadError = Infallible;
@ -167,288 +163,3 @@ impl<C> PersistAsync<C> for () {
Ok(None) Ok(None)
} }
} }
/// `StagedPersist` adds a convenient staging area for changesets before they are persisted.
///
/// Not all changes to the in-memory representation needs to be written to disk right away, so
/// [`crate::persist::StagedPersist::stage`] can be used to *stage* changes first and then
/// [`crate::persist::StagedPersist::commit`] can be used to write changes to disk.
pub struct StagedPersist<C, P: Persist<C>> {
inner: P,
stage: C,
}
impl<C, P: Persist<C>> Persist<C> for StagedPersist<C, P> {
type WriteError = P::WriteError;
type LoadError = P::LoadError;
fn write_changes(&mut self, changeset: &C) -> Result<(), Self::WriteError> {
self.inner.write_changes(changeset)
}
fn load_changes(&mut self) -> Result<Option<C>, Self::LoadError> {
self.inner.load_changes()
}
}
impl<C, P> StagedPersist<C, P>
where
C: Default + Append,
P: Persist<C>,
{
/// Create a new [`StagedPersist`] adding staging to an inner data store that implements
/// [`Persist`].
pub fn new(persist: P) -> Self {
Self {
inner: persist,
stage: Default::default(),
}
}
/// Stage a `changeset` to be committed later with [`commit`].
///
/// [`commit`]: Self::commit
pub fn stage(&mut self, changeset: C) {
self.stage.append(changeset)
}
/// Get the changes that have not been committed yet.
pub fn staged(&self) -> &C {
&self.stage
}
/// Take the changes that have not been committed yet.
///
/// New staged is set to default;
pub fn take_staged(&mut self) -> C {
mem::take(&mut self.stage)
}
/// Commit the staged changes to the underlying persistence backend.
///
/// Changes that are committed (if any) are returned.
///
/// # Error
///
/// Returns a backend-defined error if this fails.
pub fn commit(&mut self) -> Result<Option<C>, P::WriteError> {
if self.staged().is_empty() {
return Ok(None);
}
let staged = self.take_staged();
self.write_changes(&staged)
// if written successfully, take and return `self.stage`
.map(|_| Some(staged))
}
/// Stages a new changeset and commits it (along with any other previously staged changes) to
/// the persistence backend
///
/// Convenience method for calling [`stage`] and then [`commit`].
///
/// [`stage`]: Self::stage
/// [`commit`]: Self::commit
pub fn stage_and_commit(&mut self, changeset: C) -> Result<Option<C>, P::WriteError> {
self.stage(changeset);
self.commit()
}
}
#[cfg(feature = "async")]
/// `StagedPersistAsync` adds a convenient async staging area for changesets before they are persisted.
///
/// Not all changes to the in-memory representation needs to be written to disk right away, so
/// [`StagedPersistAsync::stage`] can be used to *stage* changes first and then
/// [`StagedPersistAsync::commit`] can be used to write changes to disk.
pub struct StagedPersistAsync<C, P: PersistAsync<C>> {
inner: P,
staged: C,
}
#[cfg(feature = "async")]
#[async_trait]
impl<C: Send + Sync, P: PersistAsync<C> + Send> PersistAsync<C> for StagedPersistAsync<C, P> {
type WriteError = P::WriteError;
type LoadError = P::LoadError;
async fn write_changes(&mut self, changeset: &C) -> Result<(), Self::WriteError> {
self.inner.write_changes(changeset).await
}
async fn load_changes(&mut self) -> Result<Option<C>, Self::LoadError> {
self.inner.load_changes().await
}
}
#[cfg(feature = "async")]
impl<C, P> StagedPersistAsync<C, P>
where
C: Default + Append + Send + Sync,
P: PersistAsync<C> + Send,
{
/// Create a new [`StagedPersistAsync`] adding staging to an inner data store that implements
/// [`PersistAsync`].
pub fn new(persist: P) -> Self {
Self {
inner: persist,
staged: Default::default(),
}
}
/// Stage a `changeset` to be committed later with [`commit`].
///
/// [`commit`]: Self::commit
pub fn stage(&mut self, changeset: C) {
self.staged.append(changeset)
}
/// Get the changes that have not been committed yet.
pub fn staged(&self) -> &C {
&self.staged
}
/// Take the changes that have not been committed yet.
///
/// New staged is set to default;
pub fn take_staged(&mut self) -> C {
mem::take(&mut self.staged)
}
/// Commit the staged changes to the underlying persistence backend.
///
/// Changes that are committed (if any) are returned.
///
/// # Error
///
/// Returns a backend-defined error if this fails.
pub async fn commit(&mut self) -> Result<Option<C>, P::WriteError> {
if self.staged().is_empty() {
return Ok(None);
}
let staged = self.take_staged();
self.write_changes(&staged)
.await
// if written successfully, take and return `self.stage`
.map(|_| Some(staged))
}
/// Stages a new changeset and commits it (along with any other previously staged changes) to
/// the persistence backend
///
/// Convenience method for calling [`stage`] and then [`commit`].
///
/// [`stage`]: Self::stage
/// [`commit`]: Self::commit
pub async fn stage_and_commit(&mut self, changeset: C) -> Result<Option<C>, P::WriteError> {
self.stage(changeset);
self.commit().await
}
}
#[cfg(test)]
mod test {
extern crate core;
use crate::persist::{Persist, StagedPersist};
use crate::Append;
use std::error::Error;
use std::fmt::{self, Display, Formatter};
use std::prelude::rust_2015::{String, ToString};
use TestError::FailedWrite;
struct TestBackend<C: Default + Append + Clone + ToString> {
changeset: C,
}
#[derive(Debug, Eq, PartialEq)]
enum TestError {
FailedWrite,
FailedLoad,
}
impl Display for TestError {
fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
write!(f, "{:?}", self)
}
}
impl Error for TestError {}
#[derive(Clone, Default)]
struct TestChangeSet(Option<String>);
impl fmt::Display for TestChangeSet {
fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
write!(f, "{}", self.clone().0.unwrap_or_default())
}
}
impl Append for TestChangeSet {
fn append(&mut self, other: Self) {
if other.0.is_some() {
self.0 = other.0
}
}
fn is_empty(&self) -> bool {
self.0.is_none()
}
}
impl<C> Persist<C> for TestBackend<C>
where
C: Default + Append + Clone + ToString,
{
type WriteError = TestError;
type LoadError = TestError;
fn write_changes(&mut self, changeset: &C) -> Result<(), Self::WriteError> {
if changeset.to_string() == "ERROR" {
Err(FailedWrite)
} else {
self.changeset = changeset.clone();
Ok(())
}
}
fn load_changes(&mut self) -> Result<Option<C>, Self::LoadError> {
if self.changeset.to_string() == "ERROR" {
Err(Self::LoadError::FailedLoad)
} else {
Ok(Some(self.changeset.clone()))
}
}
}
#[test]
fn test_persist_stage_commit() {
let backend = TestBackend {
changeset: TestChangeSet(None),
};
let mut staged_backend = StagedPersist::new(backend);
staged_backend.stage(TestChangeSet(Some("ONE".to_string())));
staged_backend.stage(TestChangeSet(None));
staged_backend.stage(TestChangeSet(Some("TWO".to_string())));
let result = staged_backend.commit();
assert!(matches!(result, Ok(Some(TestChangeSet(Some(v)))) if v == *"TWO".to_string()));
let result = staged_backend.commit();
assert!(matches!(result, Ok(None)));
staged_backend.stage(TestChangeSet(Some("TWO".to_string())));
let result = staged_backend.stage_and_commit(TestChangeSet(Some("ONE".to_string())));
assert!(matches!(result, Ok(Some(TestChangeSet(Some(v)))) if v == *"ONE".to_string()));
}
#[test]
fn test_persist_commit_error() {
let backend = TestBackend {
changeset: TestChangeSet(None),
};
let mut staged_backend = StagedPersist::new(backend);
staged_backend.stage(TestChangeSet(Some("ERROR".to_string())));
let result = staged_backend.commit();
assert!(matches!(result, Err(e) if e == FailedWrite));
}
}

4
crates/file_store/Cargo.toml
View File

@ -5,15 +5,13 @@ edition = "2021"
license = "MIT OR Apache-2.0" license = "MIT OR Apache-2.0"
repository = "https://github.com/bitcoindevkit/bdk" repository = "https://github.com/bitcoindevkit/bdk"
documentation = "https://docs.rs/bdk_file_store" documentation = "https://docs.rs/bdk_file_store"
description = "A simple append-only flat file implementation of Persist for Bitcoin Dev Kit." description = "A simple append-only flat file implementation of PersistBackend for Bitcoin Dev Kit."
keywords = ["bitcoin", "persist", "persistence", "bdk", "file"] keywords = ["bitcoin", "persist", "persistence", "bdk", "file"]
authors = ["Bitcoin Dev Kit Developers"] authors = ["Bitcoin Dev Kit Developers"]
readme = "README.md" readme = "README.md"
[dependencies] [dependencies]
anyhow = { version = "1", default-features = false }
bdk_chain = { path = "../chain", version = "0.15.0", features = [ "serde", "miniscript" ] } bdk_chain = { path = "../chain", version = "0.15.0", features = [ "serde", "miniscript" ] }
bdk_persist = { path = "../persist", version = "0.3.0"}
bincode = { version = "1" } bincode = { version = "1" }
serde = { version = "1", features = ["derive"] } serde = { version = "1", features = ["derive"] }

2
crates/file_store/README.md
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@ -1,6 +1,6 @@
# BDK File Store # BDK File Store
This is a simple append-only flat file implementation of [`PersistBackend`](bdk_persist::PersistBackend). This is a simple append-only flat file implementation of [`PersistBackend`](bdk_chain::persist::PersistBackend).
The main structure is [`Store`] which works with any [`bdk_chain`] based changesets to persist data into a flat file. The main structure is [`Store`] which works with any [`bdk_chain`] based changesets to persist data into a flat file.

13
crates/file_store/src/store.rs
View File

@ -1,7 +1,6 @@
use crate::{bincode_options, EntryIter, FileError, IterError}; use crate::{bincode_options, EntryIter, FileError, IterError};
use anyhow::anyhow; use bdk_chain::persist::PersistBackend;
use bdk_chain::Append; use bdk_chain::Append;
use bdk_persist::PersistBackend;
use bincode::Options; use bincode::Options;
use std::{ use std::{
fmt::{self, Debug}, fmt::{self, Debug},
@ -25,19 +24,21 @@ where
impl<C> PersistBackend<C> for Store<C> impl<C> PersistBackend<C> for Store<C>
where where
C: Append C: Append
+ Debug
+ serde::Serialize + serde::Serialize
+ serde::de::DeserializeOwned + serde::de::DeserializeOwned
+ core::marker::Send + core::marker::Send
+ core::marker::Sync, + core::marker::Sync,
{ {
fn write_changes(&mut self, changeset: &C) -> anyhow::Result<()> { type WriteError = io::Error;
type LoadError = AggregateChangesetsError<C>;
fn write_changes(&mut self, changeset: &C) -> Result<(), Self::WriteError> {
self.append_changeset(changeset) self.append_changeset(changeset)
.map_err(|e| anyhow!(e).context("failed to write changes to persistence backend"))
} }
fn load_from_persistence(&mut self) -> anyhow::Result<Option<C>> { fn load_changes(&mut self) -> Result<Option<C>, Self::LoadError> {
self.aggregate_changesets() self.aggregate_changesets()
.map_err(|e| anyhow!(e.iter_error).context("error loading from persistence backend"))
} }
} }

2
crates/hwi/src/lib.rs
View File

@ -18,7 +18,7 @@
//! let first_device = devices.remove(0)?; //! let first_device = devices.remove(0)?;
//! let custom_signer = HWISigner::from_device(&first_device, Network::Testnet.into())?; //! let custom_signer = HWISigner::from_device(&first_device, Network::Testnet.into())?;
//! //!
//! # let mut wallet = Wallet::new_no_persist( //! # let mut wallet = Wallet::new(
//! # "", //! # "",
//! # "", //! # "",
//! # Network::Testnet, //! # Network::Testnet,

22
crates/persist/Cargo.toml
View File

@ -1,22 +0,0 @@
[package]
name = "bdk_persist"
homepage = "https://bitcoindevkit.org"
version = "0.3.0"
repository = "https://github.com/bitcoindevkit/bdk"
documentation = "https://docs.rs/bdk_persist"
description = "Types that define data persistence of a BDK wallet"
keywords = ["bitcoin", "wallet", "persistence", "database"]
readme = "README.md"
license = "MIT OR Apache-2.0"
authors = ["Bitcoin Dev Kit Developers"]
edition = "2021"
rust-version = "1.63"
[dependencies]
anyhow = { version = "1", default-features = false }
bdk_chain = { path = "../chain", version = "0.15.0", default-features = false }
[features]
default = ["bdk_chain/std", "miniscript"]
serde = ["bdk_chain/serde"]
miniscript = ["bdk_chain/miniscript"]

5
crates/persist/README.md
View File

@ -1,5 +0,0 @@
# BDK Persist
This crate is home to the [`PersistBackend`] trait which defines the behavior of a database to perform the task of persisting changes made to BDK data structures.
The [`Persist`] type provides a convenient wrapper around a [`PersistBackend`] that allows staging changes before committing them.

73
crates/persist/src/changeset.rs
View File

@ -1,73 +0,0 @@
#![cfg(feature = "miniscript")]
use bdk_chain::{bitcoin::Network, indexed_tx_graph, keychain, local_chain, Anchor, Append};
/// Changes from a combination of [`bdk_chain`] structures.
#[derive(Debug, Clone, PartialEq)]
#[cfg_attr(
feature = "serde",
derive(bdk_chain::serde::Deserialize, bdk_chain::serde::Serialize),
serde(
crate = "bdk_chain::serde",
bound(
deserialize = "A: Ord + bdk_chain::serde::Deserialize<'de>, K: Ord + bdk_chain::serde::Deserialize<'de>",
serialize = "A: Ord + bdk_chain::serde::Serialize, K: Ord + bdk_chain::serde::Serialize",
),
)
)]
pub struct CombinedChangeSet<K, A> {
/// Changes to the [`LocalChain`](local_chain::LocalChain).
pub chain: local_chain::ChangeSet,
/// Changes to [`IndexedTxGraph`](indexed_tx_graph::IndexedTxGraph).
pub indexed_tx_graph: indexed_tx_graph::ChangeSet<A, keychain::ChangeSet<K>>,
/// Stores the network type of the transaction data.
pub network: Option<Network>,
}
impl<K, A> Default for CombinedChangeSet<K, A> {
fn default() -> Self {
Self {
chain: Default::default(),
indexed_tx_graph: Default::default(),
network: None,
}
}
}
impl<K: Ord, A: Anchor> Append for CombinedChangeSet<K, A> {
fn append(&mut self, other: Self) {
Append::append(&mut self.chain, other.chain);
Append::append(&mut self.indexed_tx_graph, other.indexed_tx_graph);
if other.network.is_some() {
debug_assert!(
self.network.is_none() || self.network == other.network,
"network type must either be just introduced or remain the same"
);
self.network = other.network;
}
}
fn is_empty(&self) -> bool {
self.chain.is_empty() && self.indexed_tx_graph.is_empty() && self.network.is_none()
}
}
impl<K, A> From<local_chain::ChangeSet> for CombinedChangeSet<K, A> {
fn from(chain: local_chain::ChangeSet) -> Self {
Self {
chain,
..Default::default()
}
}
}
impl<K, A> From<indexed_tx_graph::ChangeSet<A, keychain::ChangeSet<K>>>
for CombinedChangeSet<K, A>
{
fn from(indexed_tx_graph: indexed_tx_graph::ChangeSet<A, keychain::ChangeSet<K>>) -> Self {
Self {
indexed_tx_graph,
..Default::default()
}
}
}

8
crates/persist/src/lib.rs
View File

@ -1,8 +0,0 @@
#![doc = include_str!("../README.md")]
#![no_std]
#![warn(missing_docs)]
mod changeset;
mod persist;
pub use changeset::*;
pub use persist::*;

106
crates/persist/src/persist.rs
View File

@ -1,106 +0,0 @@
extern crate alloc;
use alloc::boxed::Box;
use bdk_chain::Append;
use core::fmt;
/// `Persist` wraps a [`PersistBackend`] to create a convenient staging area for changes (`C`)
/// before they are persisted.
///
/// Not all changes to the in-memory representation needs to be written to disk right away, so
/// [`Persist::stage`] can be used to *stage* changes first and then [`Persist::commit`] can be used
/// to write changes to disk.
pub struct Persist<C> {
backend: Box<dyn PersistBackend<C> + Send + Sync>,
stage: C,
}
impl<C: fmt::Debug> fmt::Debug for Persist<C> {
fn fmt(&self, fmt: &mut core::fmt::Formatter<'_>) -> Result<(), core::fmt::Error> {
write!(fmt, "{:?}", self.stage)?;
Ok(())
}
}
impl<C> Persist<C>
where
C: Default + Append,
{
/// Create a new [`Persist`] from [`PersistBackend`].
pub fn new(backend: impl PersistBackend<C> + Send + Sync + 'static) -> Self {
let backend = Box::new(backend);
Self {
backend,
stage: Default::default(),
}
}
/// Stage a `changeset` to be committed later with [`commit`].
///
/// [`commit`]: Self::commit
pub fn stage(&mut self, changeset: C) {
self.stage.append(changeset)
}
/// Get the changes that have not been committed yet.
pub fn staged(&self) -> &C {
&self.stage
}
/// Commit the staged changes to the underlying persistence backend.
///
/// Changes that are committed (if any) are returned.
///
/// # Error
///
/// Returns a backend-defined error if this fails.
pub fn commit(&mut self) -> anyhow::Result<Option<C>> {
if self.stage.is_empty() {
return Ok(None);
}
self.backend
.write_changes(&self.stage)
// if written successfully, take and return `self.stage`
.map(|_| Some(core::mem::take(&mut self.stage)))
}
/// Stages a new changeset and commits it (along with any other previously staged changes) to
/// the persistence backend
///
/// Convenience method for calling [`stage`] and then [`commit`].
///
/// [`stage`]: Self::stage
/// [`commit`]: Self::commit
pub fn stage_and_commit(&mut self, changeset: C) -> anyhow::Result<Option<C>> {
self.stage(changeset);
self.commit()
}
}
/// A persistence backend for [`Persist`].
///
/// `C` represents the changeset; a datatype that records changes made to in-memory data structures
/// that are to be persisted, or retrieved from persistence.
pub trait PersistBackend<C> {
/// Writes a changeset to the persistence backend.
///
/// It is up to the backend what it does with this. It could store every changeset in a list or
/// it inserts the actual changes into a more structured database. All it needs to guarantee is
/// that [`load_from_persistence`] restores a keychain tracker to what it should be if all
/// changesets had been applied sequentially.
///
/// [`load_from_persistence`]: Self::load_from_persistence
fn write_changes(&mut self, changeset: &C) -> anyhow::Result<()>;
/// Return the aggregate changeset `C` from persistence.
fn load_from_persistence(&mut self) -> anyhow::Result<Option<C>>;
}
impl<C> PersistBackend<C> for () {
fn write_changes(&mut self, _changeset: &C) -> anyhow::Result<()> {
Ok(())
}
fn load_from_persistence(&mut self) -> anyhow::Result<Option<C>> {
Ok(None)
}
}

4
crates/sqlite/Cargo.toml
View File

@ -5,15 +5,13 @@ edition = "2021"
license = "MIT OR Apache-2.0" license = "MIT OR Apache-2.0"
repository = "https://github.com/bitcoindevkit/bdk" repository = "https://github.com/bitcoindevkit/bdk"
documentation = "https://docs.rs/bdk_sqlite" documentation = "https://docs.rs/bdk_sqlite"
description = "A simple SQLite based implementation of Persist for Bitcoin Dev Kit." description = "A simple SQLite based implementation of PersistBackend for Bitcoin Dev Kit."
keywords = ["bitcoin", "persist", "persistence", "bdk", "sqlite"] keywords = ["bitcoin", "persist", "persistence", "bdk", "sqlite"]
authors = ["Bitcoin Dev Kit Developers"] authors = ["Bitcoin Dev Kit Developers"]
readme = "README.md" readme = "README.md"
[dependencies] [dependencies]
anyhow = { version = "1", default-features = false }
bdk_chain = { path = "../chain", version = "0.15.0", features = ["serde", "miniscript"] } bdk_chain = { path = "../chain", version = "0.15.0", features = ["serde", "miniscript"] }
bdk_persist = { path = "../persist", version = "0.3.0", features = ["serde"] }
rusqlite = { version = "0.31.0", features = ["bundled"] } rusqlite = { version = "0.31.0", features = ["bundled"] }
serde = { version = "1", features = ["derive"] } serde = { version = "1", features = ["derive"] }
serde_json = "1" serde_json = "1"

6
crates/sqlite/README.md
View File

@ -1,8 +1,8 @@
# BDK SQLite # BDK SQLite
This is a simple [SQLite] relational database schema backed implementation of [`PersistBackend`](bdk_persist::PersistBackend). This is a simple [SQLite] relational database schema backed implementation of `PersistBackend`.
The main structure is `Store` which persists [`bdk_persist`] `CombinedChangeSet` data into a SQLite database file. The main structure is `Store` which persists `CombinedChangeSet` data into a SQLite database file.
[`bdk_persist`]:https://docs.rs/bdk_persist/latest/bdk_persist/ <!-- [`PersistBackend`]: bdk_chain::persist::PersistBackend -->
[SQLite]: https://www.sqlite.org/index.html [SQLite]: https://www.sqlite.org/index.html

39
crates/sqlite/src/store.rs
View File

@ -12,10 +12,10 @@ use std::str::FromStr;
use std::sync::{Arc, Mutex}; use std::sync::{Arc, Mutex};
use crate::Error; use crate::Error;
use bdk_chain::persist::{CombinedChangeSet, PersistBackend};
use bdk_chain::{ use bdk_chain::{
indexed_tx_graph, keychain, local_chain, tx_graph, Anchor, Append, DescriptorExt, DescriptorId, indexed_tx_graph, keychain, local_chain, tx_graph, Anchor, Append, DescriptorExt, DescriptorId,
}; };
use bdk_persist::CombinedChangeSet;
/// Persists data in to a relational schema based [SQLite] database file. /// Persists data in to a relational schema based [SQLite] database file.
/// ///
@ -57,21 +57,23 @@ where
} }
} }
impl<K, A, C> bdk_persist::PersistBackend<C> for Store<K, A> impl<K, A> PersistBackend<CombinedChangeSet<K, A>> for Store<K, A>
where where
K: Ord + for<'de> Deserialize<'de> + Serialize + Send, K: Ord + for<'de> Deserialize<'de> + Serialize + Send,
A: Anchor + for<'de> Deserialize<'de> + Serialize + Send, A: Anchor + for<'de> Deserialize<'de> + Serialize + Send,
C: Clone + From<CombinedChangeSet<K, A>> + Into<CombinedChangeSet<K, A>>,
{ {
fn write_changes(&mut self, changeset: &C) -> anyhow::Result<()> { type WriteError = Error;
self.write(&changeset.clone().into()) type LoadError = Error;
.map_err(|e| anyhow::anyhow!(e).context("unable to write changes to sqlite database"))
fn write_changes(
&mut self,
changeset: &CombinedChangeSet<K, A>,
) -> Result<(), Self::WriteError> {
self.write(changeset)
} }
fn load_from_persistence(&mut self) -> anyhow::Result<Option<C>> { fn load_changes(&mut self) -> Result<Option<CombinedChangeSet<K, A>>, Self::LoadError> {
self.read() self.read()
.map(|c| c.map(Into::into))
.map_err(|e| anyhow::anyhow!(e).context("unable to read changes from sqlite database"))
} }
} }
@ -561,11 +563,11 @@ mod test {
use bdk_chain::bitcoin::Network::Testnet; use bdk_chain::bitcoin::Network::Testnet;
use bdk_chain::bitcoin::{secp256k1, BlockHash, OutPoint}; use bdk_chain::bitcoin::{secp256k1, BlockHash, OutPoint};
use bdk_chain::miniscript::Descriptor; use bdk_chain::miniscript::Descriptor;
use bdk_chain::persist::{CombinedChangeSet, PersistBackend};
use bdk_chain::{ use bdk_chain::{
indexed_tx_graph, keychain, tx_graph, BlockId, ConfirmationHeightAnchor, indexed_tx_graph, keychain, tx_graph, BlockId, ConfirmationHeightAnchor,
ConfirmationTimeHeightAnchor, DescriptorExt, ConfirmationTimeHeightAnchor, DescriptorExt,
}; };
use bdk_persist::PersistBackend;
use std::str::FromStr; use std::str::FromStr;
use std::sync::Arc; use std::sync::Arc;
@ -576,8 +578,7 @@ mod test {
} }
#[test] #[test]
fn insert_and_load_aggregate_changesets_with_confirmation_time_height_anchor( fn insert_and_load_aggregate_changesets_with_confirmation_time_height_anchor() {
) -> anyhow::Result<()> {
let (test_changesets, agg_test_changesets) = let (test_changesets, agg_test_changesets) =
create_test_changesets(&|height, time, hash| ConfirmationTimeHeightAnchor { create_test_changesets(&|height, time, hash| ConfirmationTimeHeightAnchor {
confirmation_height: height, confirmation_height: height,
@ -593,15 +594,13 @@ mod test {
store.write_changes(changeset).expect("write changeset"); store.write_changes(changeset).expect("write changeset");
}); });
let agg_changeset = store.load_from_persistence().expect("aggregated changeset"); let agg_changeset = store.load_changes().expect("aggregated changeset");
assert_eq!(agg_changeset, Some(agg_test_changesets)); assert_eq!(agg_changeset, Some(agg_test_changesets));
Ok(())
} }
#[test] #[test]
fn insert_and_load_aggregate_changesets_with_confirmation_height_anchor() -> anyhow::Result<()> fn insert_and_load_aggregate_changesets_with_confirmation_height_anchor() {
{
let (test_changesets, agg_test_changesets) = let (test_changesets, agg_test_changesets) =
create_test_changesets(&|height, _time, hash| ConfirmationHeightAnchor { create_test_changesets(&|height, _time, hash| ConfirmationHeightAnchor {
confirmation_height: height, confirmation_height: height,
@ -616,14 +615,13 @@ mod test {
store.write_changes(changeset).expect("write changeset"); store.write_changes(changeset).expect("write changeset");
}); });
let agg_changeset = store.load_from_persistence().expect("aggregated changeset"); let agg_changeset = store.load_changes().expect("aggregated changeset");
assert_eq!(agg_changeset, Some(agg_test_changesets)); assert_eq!(agg_changeset, Some(agg_test_changesets));
Ok(())
} }
#[test] #[test]
fn insert_and_load_aggregate_changesets_with_blockid_anchor() -> anyhow::Result<()> { fn insert_and_load_aggregate_changesets_with_blockid_anchor() {
let (test_changesets, agg_test_changesets) = let (test_changesets, agg_test_changesets) =
create_test_changesets(&|height, _time, hash| BlockId { height, hash }); create_test_changesets(&|height, _time, hash| BlockId { height, hash });
@ -634,10 +632,9 @@ mod test {
store.write_changes(changeset).expect("write changeset"); store.write_changes(changeset).expect("write changeset");
}); });
let agg_changeset = store.load_from_persistence().expect("aggregated changeset"); let agg_changeset = store.load_changes().expect("aggregated changeset");
assert_eq!(agg_changeset, Some(agg_test_changesets)); assert_eq!(agg_changeset, Some(agg_test_changesets));
Ok(())
} }
fn create_test_changesets<A: Anchor + Copy>( fn create_test_changesets<A: Anchor + Copy>(

2
crates/wallet/Cargo.toml
View File

@ -13,14 +13,12 @@ edition = "2021"
rust-version = "1.63" rust-version = "1.63"
[dependencies] [dependencies]
anyhow = { version = "1", default-features = false }
rand = "^0.8" rand = "^0.8"
miniscript = { version = "12.0.0", features = ["serde"], default-features = false } miniscript = { version = "12.0.0", features = ["serde"], default-features = false }
bitcoin = { version = "0.32.0", features = ["serde", "base64", "rand-std"], default-features = false } bitcoin = { version = "0.32.0", features = ["serde", "base64", "rand-std"], default-features = false }
serde = { version = "^1.0", features = ["derive"] } serde = { version = "^1.0", features = ["derive"] }
serde_json = { version = "^1.0" } serde_json = { version = "^1.0" }
bdk_chain = { path = "../chain", version = "0.15.0", features = ["miniscript", "serde"], default-features = false } bdk_chain = { path = "../chain", version = "0.15.0", features = ["miniscript", "serde"], default-features = false }
bdk_persist = { path = "../persist", version = "0.3.0", features = ["miniscript", "serde"], default-features = false }
# Optional dependencies # Optional dependencies
bip39 = { version = "2.0", optional = true } bip39 = { version = "2.0", optional = true }

19
crates/wallet/README.md
View File

@ -57,11 +57,12 @@ that the `Wallet` can use to update its view of the chain.
## Persistence ## Persistence
To persist the `Wallet` on disk, it must be constructed with a [`PersistBackend`] implementation. To persist `Wallet` state data on disk use an implementation of the [`PersistBackend`] trait.
**Implementations** **Implementations**
* [`bdk_file_store`]: A simple flat-file implementation of [`PersistBackend`]. * [`bdk_file_store`]: A simple flat-file implementation of [`PersistBackend`].
* [`bdk_sqlite`]: A simple sqlite implementation of [`PersistBackend`].
**Example** **Example**
@ -71,15 +72,16 @@ use bdk_wallet::{bitcoin::Network, wallet::{ChangeSet, Wallet}};
fn main() { fn main() {
// Create a new file `Store`. // Create a new file `Store`.
let db = bdk_file_store::Store::<ChangeSet>::open_or_create_new(b"magic_bytes", "path/to/my_wallet.db").expect("create store"); let mut db = bdk_file_store::Store::<ChangeSet>::open_or_create_new(b"magic_bytes", "path/to/my_wallet.db").expect("create store");
let descriptor = "wpkh(tprv8ZgxMBicQKsPdcAqYBpzAFwU5yxBUo88ggoBqu1qPcHUfSbKK1sKMLmC7EAk438btHQrSdu3jGGQa6PA71nvH5nkDexhLteJqkM4dQmWF9g/84'/1'/0'/0/*)"; let descriptor = "wpkh(tprv8ZgxMBicQKsPdcAqYBpzAFwU5yxBUo88ggoBqu1qPcHUfSbKK1sKMLmC7EAk438btHQrSdu3jGGQa6PA71nvH5nkDexhLteJqkM4dQmWF9g/84'/1'/0'/0/*)";
let change_descriptor = "wpkh(tprv8ZgxMBicQKsPdcAqYBpzAFwU5yxBUo88ggoBqu1qPcHUfSbKK1sKMLmC7EAk438btHQrSdu3jGGQa6PA71nvH5nkDexhLteJqkM4dQmWF9g/84'/1'/0'/1/*)"; let change_descriptor = "wpkh(tprv8ZgxMBicQKsPdcAqYBpzAFwU5yxBUo88ggoBqu1qPcHUfSbKK1sKMLmC7EAk438btHQrSdu3jGGQa6PA71nvH5nkDexhLteJqkM4dQmWF9g/84'/1'/0'/1/*)";
let mut wallet = Wallet::new_or_load(descriptor, change_descriptor, db, Network::Testnet).expect("create or load wallet"); let changeset = db.load_changes().expect("changeset loaded");
let mut wallet = Wallet::new_or_load(descriptor, change_descriptor, changeset, Network::Testnet).expect("create or load wallet");
// Insert a single `TxOut` at `OutPoint` into the wallet. // Insert a single `TxOut` at `OutPoint` into the wallet.
let _ = wallet.insert_txout(outpoint, txout); let _ = wallet.insert_txout(outpoint, txout);
wallet.commit().expect("must write to database"); wallet.commit_to(&mut db).expect("must commit changes to database");
} }
``` ```
@ -115,7 +117,7 @@ fn main() {
<!-- use bdk_wallet::bitcoin::Network; --> <!-- use bdk_wallet::bitcoin::Network; -->
<!-- fn main() -> Result<(), bdk_wallet::Error> { --> <!-- fn main() -> Result<(), bdk_wallet::Error> { -->
<!-- let wallet = Wallet::new_no_persist( --> <!-- let wallet = Wallet::new( -->
<!-- "wpkh([c258d2e4/84h/1h/0h]tpubDDYkZojQFQjht8Tm4jsS3iuEmKjTiEGjG6KnuFNKKJb5A6ZUCUZKdvLdSDWofKi4ToRCwb9poe1XdqfUnP4jaJjCB2Zwv11ZLgSbnZSNecE/0/*)", --> <!-- "wpkh([c258d2e4/84h/1h/0h]tpubDDYkZojQFQjht8Tm4jsS3iuEmKjTiEGjG6KnuFNKKJb5A6ZUCUZKdvLdSDWofKi4ToRCwb9poe1XdqfUnP4jaJjCB2Zwv11ZLgSbnZSNecE/0/*)", -->
<!-- Some("wpkh([c258d2e4/84h/1h/0h]tpubDDYkZojQFQjht8Tm4jsS3iuEmKjTiEGjG6KnuFNKKJb5A6ZUCUZKdvLdSDWofKi4ToRCwb9poe1XdqfUnP4jaJjCB2Zwv11ZLgSbnZSNecE/1/*)"), --> <!-- Some("wpkh([c258d2e4/84h/1h/0h]tpubDDYkZojQFQjht8Tm4jsS3iuEmKjTiEGjG6KnuFNKKJb5A6ZUCUZKdvLdSDWofKi4ToRCwb9poe1XdqfUnP4jaJjCB2Zwv11ZLgSbnZSNecE/1/*)"), -->
<!-- Network::Testnet, --> <!-- Network::Testnet, -->
@ -144,7 +146,7 @@ fn main() {
<!-- fn main() -> Result<(), bdk_wallet::Error> { --> <!-- fn main() -> Result<(), bdk_wallet::Error> { -->
<!-- let blockchain = ElectrumBlockchain::from(Client::new("ssl://electrum.blockstream.info:60002")?); --> <!-- let blockchain = ElectrumBlockchain::from(Client::new("ssl://electrum.blockstream.info:60002")?); -->
<!-- let wallet = Wallet::new_no_persist( --> <!-- let wallet = Wallet::new( -->
<!-- "wpkh([c258d2e4/84h/1h/0h]tpubDDYkZojQFQjht8Tm4jsS3iuEmKjTiEGjG6KnuFNKKJb5A6ZUCUZKdvLdSDWofKi4ToRCwb9poe1XdqfUnP4jaJjCB2Zwv11ZLgSbnZSNecE/0/*)", --> <!-- "wpkh([c258d2e4/84h/1h/0h]tpubDDYkZojQFQjht8Tm4jsS3iuEmKjTiEGjG6KnuFNKKJb5A6ZUCUZKdvLdSDWofKi4ToRCwb9poe1XdqfUnP4jaJjCB2Zwv11ZLgSbnZSNecE/0/*)", -->
<!-- Some("wpkh([c258d2e4/84h/1h/0h]tpubDDYkZojQFQjht8Tm4jsS3iuEmKjTiEGjG6KnuFNKKJb5A6ZUCUZKdvLdSDWofKi4ToRCwb9poe1XdqfUnP4jaJjCB2Zwv11ZLgSbnZSNecE/1/*)"), --> <!-- Some("wpkh([c258d2e4/84h/1h/0h]tpubDDYkZojQFQjht8Tm4jsS3iuEmKjTiEGjG6KnuFNKKJb5A6ZUCUZKdvLdSDWofKi4ToRCwb9poe1XdqfUnP4jaJjCB2Zwv11ZLgSbnZSNecE/1/*)"), -->
<!-- Network::Testnet, --> <!-- Network::Testnet, -->
@ -180,7 +182,7 @@ fn main() {
<!-- use bdk_wallet::bitcoin::Network; --> <!-- use bdk_wallet::bitcoin::Network; -->
<!-- fn main() -> Result<(), bdk_wallet::Error> { --> <!-- fn main() -> Result<(), bdk_wallet::Error> { -->
<!-- let wallet = Wallet::new_no_persist( --> <!-- let wallet = Wallet::new( -->
<!-- "wpkh([c258d2e4/84h/1h/0h]tprv8griRPhA7342zfRyB6CqeKF8CJDXYu5pgnj1cjL1u2ngKcJha5jjTRimG82ABzJQ4MQe71CV54xfn25BbhCNfEGGJZnxvCDQCd6JkbvxW6h/0/*)", --> <!-- "wpkh([c258d2e4/84h/1h/0h]tprv8griRPhA7342zfRyB6CqeKF8CJDXYu5pgnj1cjL1u2ngKcJha5jjTRimG82ABzJQ4MQe71CV54xfn25BbhCNfEGGJZnxvCDQCd6JkbvxW6h/0/*)", -->
<!-- Some("wpkh([c258d2e4/84h/1h/0h]tprv8griRPhA7342zfRyB6CqeKF8CJDXYu5pgnj1cjL1u2ngKcJha5jjTRimG82ABzJQ4MQe71CV54xfn25BbhCNfEGGJZnxvCDQCd6JkbvxW6h/1/*)"), --> <!-- Some("wpkh([c258d2e4/84h/1h/0h]tprv8griRPhA7342zfRyB6CqeKF8CJDXYu5pgnj1cjL1u2ngKcJha5jjTRimG82ABzJQ4MQe71CV54xfn25BbhCNfEGGJZnxvCDQCd6JkbvxW6h/1/*)"), -->
<!-- Network::Testnet, --> <!-- Network::Testnet, -->
@ -220,9 +222,10 @@ license, shall be dual licensed as above, without any additional terms or
conditions. conditions.
[`Wallet`]: https://docs.rs/bdk_wallet/latest/bdk_wallet/wallet/struct.Wallet.html [`Wallet`]: https://docs.rs/bdk_wallet/latest/bdk_wallet/wallet/struct.Wallet.html
[`PersistBackend`]: https://docs.rs/bdk_chain/latest/bdk_chain/trait.PersistBackend.html [`PersistBackend`]: https://docs.rs/bdk_chain/latest/bdk_chain/persist/trait.PersistBackend.html
[`bdk_chain`]: https://docs.rs/bdk_chain/latest [`bdk_chain`]: https://docs.rs/bdk_chain/latest
[`bdk_file_store`]: https://docs.rs/bdk_file_store/latest [`bdk_file_store`]: https://docs.rs/bdk_file_store/latest
[`bdk_sqlite`]: https://docs.rs/bdk_sqlite/latest
[`bdk_electrum`]: https://docs.rs/bdk_electrum/latest [`bdk_electrum`]: https://docs.rs/bdk_electrum/latest
[`bdk_esplora`]: https://docs.rs/bdk_esplora/latest [`bdk_esplora`]: https://docs.rs/bdk_esplora/latest
[`bdk_bitcoind_rpc`]: https://docs.rs/bdk_bitcoind_rpc/latest [`bdk_bitcoind_rpc`]: https://docs.rs/bdk_bitcoind_rpc/latest

4
crates/wallet/examples/compiler.rs
View File

@ -77,11 +77,11 @@ fn main() -> Result<(), Box<dyn Error>> {
); );
// Create a new wallet from descriptors // Create a new wallet from descriptors
let mut wallet = Wallet::new_no_persist(&descriptor, &internal_descriptor, Network::Regtest)?; let mut wallet = Wallet::new(&descriptor, &internal_descriptor, Network::Regtest)?;
println!( println!(
"First derived address from the descriptor: \n{}", "First derived address from the descriptor: \n{}",
wallet.next_unused_address(KeychainKind::External)?, wallet.next_unused_address(KeychainKind::External),
); );
// BDK also has it's own `Policy` structure to represent the spending condition in a more // BDK also has it's own `Policy` structure to represent the spending condition in a more

51
crates/wallet/src/descriptor/template.rs
View File

@ -81,12 +81,11 @@ impl<T: DescriptorTemplate> IntoWalletDescriptor for T {
/// bitcoin::PrivateKey::from_wif("cTc4vURSzdx6QE6KVynWGomDbLaA75dNALMNyfjh3p8DRRar84Um")?; /// bitcoin::PrivateKey::from_wif("cTc4vURSzdx6QE6KVynWGomDbLaA75dNALMNyfjh3p8DRRar84Um")?;
/// let key_internal = /// let key_internal =
/// bitcoin::PrivateKey::from_wif("cVpPVruEDdmutPzisEsYvtST1usBR3ntr8pXSyt6D2YYqXRyPcFW")?; /// bitcoin::PrivateKey::from_wif("cVpPVruEDdmutPzisEsYvtST1usBR3ntr8pXSyt6D2YYqXRyPcFW")?;
/// let mut wallet = /// let mut wallet = Wallet::new(P2Pkh(key_external), P2Pkh(key_internal), Network::Testnet)?;
/// Wallet::new_no_persist(P2Pkh(key_external), P2Pkh(key_internal), Network::Testnet)?;
/// ///
/// assert_eq!( /// assert_eq!(
/// wallet /// wallet
/// .next_unused_address(KeychainKind::External)? /// .next_unused_address(KeychainKind::External)
/// .to_string(), /// .to_string(),
/// "mwJ8hxFYW19JLuc65RCTaP4v1rzVU8cVMT" /// "mwJ8hxFYW19JLuc65RCTaP4v1rzVU8cVMT"
/// ); /// );
@ -114,7 +113,7 @@ impl<K: IntoDescriptorKey<Legacy>> DescriptorTemplate for P2Pkh<K> {
/// bitcoin::PrivateKey::from_wif("cTc4vURSzdx6QE6KVynWGomDbLaA75dNALMNyfjh3p8DRRar84Um")?; /// bitcoin::PrivateKey::from_wif("cTc4vURSzdx6QE6KVynWGomDbLaA75dNALMNyfjh3p8DRRar84Um")?;
/// let key_internal = /// let key_internal =
/// bitcoin::PrivateKey::from_wif("cVpPVruEDdmutPzisEsYvtST1usBR3ntr8pXSyt6D2YYqXRyPcFW")?; /// bitcoin::PrivateKey::from_wif("cVpPVruEDdmutPzisEsYvtST1usBR3ntr8pXSyt6D2YYqXRyPcFW")?;
/// let mut wallet = Wallet::new_no_persist( /// let mut wallet = Wallet::new(
/// P2Wpkh_P2Sh(key_external), /// P2Wpkh_P2Sh(key_external),
/// P2Wpkh_P2Sh(key_internal), /// P2Wpkh_P2Sh(key_internal),
/// Network::Testnet, /// Network::Testnet,
@ -122,7 +121,7 @@ impl<K: IntoDescriptorKey<Legacy>> DescriptorTemplate for P2Pkh<K> {
/// ///
/// assert_eq!( /// assert_eq!(
/// wallet /// wallet
/// .next_unused_address(KeychainKind::External)? /// .next_unused_address(KeychainKind::External)
/// .to_string(), /// .to_string(),
/// "2NB4ox5VDRw1ecUv6SnT3VQHPXveYztRqk5" /// "2NB4ox5VDRw1ecUv6SnT3VQHPXveYztRqk5"
/// ); /// );
@ -151,12 +150,11 @@ impl<K: IntoDescriptorKey<Segwitv0>> DescriptorTemplate for P2Wpkh_P2Sh<K> {
/// bitcoin::PrivateKey::from_wif("cTc4vURSzdx6QE6KVynWGomDbLaA75dNALMNyfjh3p8DRRar84Um")?; /// bitcoin::PrivateKey::from_wif("cTc4vURSzdx6QE6KVynWGomDbLaA75dNALMNyfjh3p8DRRar84Um")?;
/// let key_internal = /// let key_internal =
/// bitcoin::PrivateKey::from_wif("cVpPVruEDdmutPzisEsYvtST1usBR3ntr8pXSyt6D2YYqXRyPcFW")?; /// bitcoin::PrivateKey::from_wif("cVpPVruEDdmutPzisEsYvtST1usBR3ntr8pXSyt6D2YYqXRyPcFW")?;
/// let mut wallet = /// let mut wallet = Wallet::new(P2Wpkh(key_external), P2Wpkh(key_internal), Network::Testnet)?;
/// Wallet::new_no_persist(P2Wpkh(key_external), P2Wpkh(key_internal), Network::Testnet)?;
/// ///
/// assert_eq!( /// assert_eq!(
/// wallet /// wallet
/// .next_unused_address(KeychainKind::External)? /// .next_unused_address(KeychainKind::External)
/// .to_string(), /// .to_string(),
/// "tb1q4525hmgw265tl3drrl8jjta7ayffu6jf68ltjd" /// "tb1q4525hmgw265tl3drrl8jjta7ayffu6jf68ltjd"
/// ); /// );
@ -184,12 +182,11 @@ impl<K: IntoDescriptorKey<Segwitv0>> DescriptorTemplate for P2Wpkh<K> {
/// bitcoin::PrivateKey::from_wif("cTc4vURSzdx6QE6KVynWGomDbLaA75dNALMNyfjh3p8DRRar84Um")?; /// bitcoin::PrivateKey::from_wif("cTc4vURSzdx6QE6KVynWGomDbLaA75dNALMNyfjh3p8DRRar84Um")?;
/// let key_internal = /// let key_internal =
/// bitcoin::PrivateKey::from_wif("cVpPVruEDdmutPzisEsYvtST1usBR3ntr8pXSyt6D2YYqXRyPcFW")?; /// bitcoin::PrivateKey::from_wif("cVpPVruEDdmutPzisEsYvtST1usBR3ntr8pXSyt6D2YYqXRyPcFW")?;
/// let mut wallet = /// let mut wallet = Wallet::new(P2TR(key_external), P2TR(key_internal), Network::Testnet)?;
/// Wallet::new_no_persist(P2TR(key_external), P2TR(key_internal), Network::Testnet)?;
/// ///
/// assert_eq!( /// assert_eq!(
/// wallet /// wallet
/// .next_unused_address(KeychainKind::External)? /// .next_unused_address(KeychainKind::External)
/// .to_string(), /// .to_string(),
/// "tb1pvjf9t34fznr53u5tqhejz4nr69luzkhlvsdsdfq9pglutrpve2xq7hps46" /// "tb1pvjf9t34fznr53u5tqhejz4nr69luzkhlvsdsdfq9pglutrpve2xq7hps46"
/// ); /// );
@ -218,13 +215,13 @@ impl<K: IntoDescriptorKey<Tap>> DescriptorTemplate for P2TR<K> {
/// use bdk_wallet::template::Bip44; /// use bdk_wallet::template::Bip44;
/// ///
/// let key = bitcoin::bip32::Xpriv::from_str("tprv8ZgxMBicQKsPeZRHk4rTG6orPS2CRNFX3njhUXx5vj9qGog5ZMH4uGReDWN5kCkY3jmWEtWause41CDvBRXD1shKknAMKxT99o9qUTRVC6m")?; /// let key = bitcoin::bip32::Xpriv::from_str("tprv8ZgxMBicQKsPeZRHk4rTG6orPS2CRNFX3njhUXx5vj9qGog5ZMH4uGReDWN5kCkY3jmWEtWause41CDvBRXD1shKknAMKxT99o9qUTRVC6m")?;
/// let mut wallet = Wallet::new_no_persist( /// let mut wallet = Wallet::new(
/// Bip44(key.clone(), KeychainKind::External), /// Bip44(key.clone(), KeychainKind::External),
/// Bip44(key, KeychainKind::Internal), /// Bip44(key, KeychainKind::Internal),
/// Network::Testnet, /// Network::Testnet,
/// )?; /// )?;
/// ///
/// assert_eq!(wallet.next_unused_address(KeychainKind::External)?.to_string(), "mmogjc7HJEZkrLqyQYqJmxUqFaC7i4uf89"); /// assert_eq!(wallet.next_unused_address(KeychainKind::External).to_string(), "mmogjc7HJEZkrLqyQYqJmxUqFaC7i4uf89");
/// assert_eq!(wallet.public_descriptor(KeychainKind::External).to_string(), "pkh([c55b303f/44'/1'/0']tpubDCuorCpzvYS2LCD75BR46KHE8GdDeg1wsAgNZeNr6DaB5gQK1o14uErKwKLuFmeemkQ6N2m3rNgvctdJLyr7nwu2yia7413Hhg8WWE44cgT/0/*)#5wrnv0xt"); /// assert_eq!(wallet.public_descriptor(KeychainKind::External).to_string(), "pkh([c55b303f/44'/1'/0']tpubDCuorCpzvYS2LCD75BR46KHE8GdDeg1wsAgNZeNr6DaB5gQK1o14uErKwKLuFmeemkQ6N2m3rNgvctdJLyr7nwu2yia7413Hhg8WWE44cgT/0/*)#5wrnv0xt");
/// # Ok::<_, Box<dyn std::error::Error>>(()) /// # Ok::<_, Box<dyn std::error::Error>>(())
/// ``` /// ```
@ -255,13 +252,13 @@ impl<K: DerivableKey<Legacy>> DescriptorTemplate for Bip44<K> {
/// ///
/// let key = bitcoin::bip32::Xpub::from_str("tpubDDDzQ31JkZB7VxUr9bjvBivDdqoFLrDPyLWtLapArAi51ftfmCb2DPxwLQzX65iNcXz1DGaVvyvo6JQ6rTU73r2gqdEo8uov9QKRb7nKCSU")?; /// let key = bitcoin::bip32::Xpub::from_str("tpubDDDzQ31JkZB7VxUr9bjvBivDdqoFLrDPyLWtLapArAi51ftfmCb2DPxwLQzX65iNcXz1DGaVvyvo6JQ6rTU73r2gqdEo8uov9QKRb7nKCSU")?;
/// let fingerprint = bitcoin::bip32::Fingerprint::from_str("c55b303f")?; /// let fingerprint = bitcoin::bip32::Fingerprint::from_str("c55b303f")?;
/// let mut wallet = Wallet::new_no_persist( /// let mut wallet = Wallet::new(
/// Bip44Public(key.clone(), fingerprint, KeychainKind::External), /// Bip44Public(key.clone(), fingerprint, KeychainKind::External),
/// Bip44Public(key, fingerprint, KeychainKind::Internal), /// Bip44Public(key, fingerprint, KeychainKind::Internal),
/// Network::Testnet, /// Network::Testnet,
/// )?; /// )?;
/// ///
/// assert_eq!(wallet.next_unused_address(KeychainKind::External)?.to_string(), "miNG7dJTzJqNbFS19svRdTCisC65dsubtR"); /// assert_eq!(wallet.next_unused_address(KeychainKind::External).to_string(), "miNG7dJTzJqNbFS19svRdTCisC65dsubtR");
/// assert_eq!(wallet.public_descriptor(KeychainKind::External).to_string(), "pkh([c55b303f/44'/1'/0']tpubDDDzQ31JkZB7VxUr9bjvBivDdqoFLrDPyLWtLapArAi51ftfmCb2DPxwLQzX65iNcXz1DGaVvyvo6JQ6rTU73r2gqdEo8uov9QKRb7nKCSU/0/*)#cfhumdqz"); /// assert_eq!(wallet.public_descriptor(KeychainKind::External).to_string(), "pkh([c55b303f/44'/1'/0']tpubDDDzQ31JkZB7VxUr9bjvBivDdqoFLrDPyLWtLapArAi51ftfmCb2DPxwLQzX65iNcXz1DGaVvyvo6JQ6rTU73r2gqdEo8uov9QKRb7nKCSU/0/*)#cfhumdqz");
/// # Ok::<_, Box<dyn std::error::Error>>(()) /// # Ok::<_, Box<dyn std::error::Error>>(())
/// ``` /// ```
@ -291,13 +288,13 @@ impl<K: DerivableKey<Legacy>> DescriptorTemplate for Bip44Public<K> {
/// use bdk_wallet::template::Bip49; /// use bdk_wallet::template::Bip49;
/// ///
/// let key = bitcoin::bip32::Xpriv::from_str("tprv8ZgxMBicQKsPeZRHk4rTG6orPS2CRNFX3njhUXx5vj9qGog5ZMH4uGReDWN5kCkY3jmWEtWause41CDvBRXD1shKknAMKxT99o9qUTRVC6m")?; /// let key = bitcoin::bip32::Xpriv::from_str("tprv8ZgxMBicQKsPeZRHk4rTG6orPS2CRNFX3njhUXx5vj9qGog5ZMH4uGReDWN5kCkY3jmWEtWause41CDvBRXD1shKknAMKxT99o9qUTRVC6m")?;
/// let mut wallet = Wallet::new_no_persist( /// let mut wallet = Wallet::new(
/// Bip49(key.clone(), KeychainKind::External), /// Bip49(key.clone(), KeychainKind::External),
/// Bip49(key, KeychainKind::Internal), /// Bip49(key, KeychainKind::Internal),
/// Network::Testnet, /// Network::Testnet,
/// )?; /// )?;
/// ///
/// assert_eq!(wallet.next_unused_address(KeychainKind::External)?.to_string(), "2N4zkWAoGdUv4NXhSsU8DvS5MB36T8nKHEB"); /// assert_eq!(wallet.next_unused_address(KeychainKind::External).to_string(), "2N4zkWAoGdUv4NXhSsU8DvS5MB36T8nKHEB");
/// assert_eq!(wallet.public_descriptor(KeychainKind::External).to_string(), "sh(wpkh([c55b303f/49'/1'/0']tpubDDYr4kdnZgjjShzYNjZUZXUUtpXaofdkMaipyS8ThEh45qFmhT4hKYways7UXmg6V7het1QiFo9kf4kYUXyDvV4rHEyvSpys9pjCB3pukxi/0/*))#s9vxlc8e"); /// assert_eq!(wallet.public_descriptor(KeychainKind::External).to_string(), "sh(wpkh([c55b303f/49'/1'/0']tpubDDYr4kdnZgjjShzYNjZUZXUUtpXaofdkMaipyS8ThEh45qFmhT4hKYways7UXmg6V7het1QiFo9kf4kYUXyDvV4rHEyvSpys9pjCB3pukxi/0/*))#s9vxlc8e");
/// # Ok::<_, Box<dyn std::error::Error>>(()) /// # Ok::<_, Box<dyn std::error::Error>>(())
/// ``` /// ```
@ -328,13 +325,13 @@ impl<K: DerivableKey<Segwitv0>> DescriptorTemplate for Bip49<K> {
/// ///
/// let key = bitcoin::bip32::Xpub::from_str("tpubDC49r947KGK52X5rBWS4BLs5m9SRY3pYHnvRrm7HcybZ3BfdEsGFyzCMzayi1u58eT82ZeyFZwH7DD6Q83E3fM9CpfMtmnTygnLfP59jL9L")?; /// let key = bitcoin::bip32::Xpub::from_str("tpubDC49r947KGK52X5rBWS4BLs5m9SRY3pYHnvRrm7HcybZ3BfdEsGFyzCMzayi1u58eT82ZeyFZwH7DD6Q83E3fM9CpfMtmnTygnLfP59jL9L")?;
/// let fingerprint = bitcoin::bip32::Fingerprint::from_str("c55b303f")?; /// let fingerprint = bitcoin::bip32::Fingerprint::from_str("c55b303f")?;
/// let mut wallet = Wallet::new_no_persist( /// let mut wallet = Wallet::new(
/// Bip49Public(key.clone(), fingerprint, KeychainKind::External), /// Bip49Public(key.clone(), fingerprint, KeychainKind::External),
/// Bip49Public(key, fingerprint, KeychainKind::Internal), /// Bip49Public(key, fingerprint, KeychainKind::Internal),
/// Network::Testnet, /// Network::Testnet,
/// )?; /// )?;
/// ///
/// assert_eq!(wallet.next_unused_address(KeychainKind::External)?.to_string(), "2N3K4xbVAHoiTQSwxkZjWDfKoNC27pLkYnt"); /// assert_eq!(wallet.next_unused_address(KeychainKind::External).to_string(), "2N3K4xbVAHoiTQSwxkZjWDfKoNC27pLkYnt");
/// assert_eq!(wallet.public_descriptor(KeychainKind::External).to_string(), "sh(wpkh([c55b303f/49'/1'/0']tpubDC49r947KGK52X5rBWS4BLs5m9SRY3pYHnvRrm7HcybZ3BfdEsGFyzCMzayi1u58eT82ZeyFZwH7DD6Q83E3fM9CpfMtmnTygnLfP59jL9L/0/*))#3tka9g0q"); /// assert_eq!(wallet.public_descriptor(KeychainKind::External).to_string(), "sh(wpkh([c55b303f/49'/1'/0']tpubDC49r947KGK52X5rBWS4BLs5m9SRY3pYHnvRrm7HcybZ3BfdEsGFyzCMzayi1u58eT82ZeyFZwH7DD6Q83E3fM9CpfMtmnTygnLfP59jL9L/0/*))#3tka9g0q");
/// # Ok::<_, Box<dyn std::error::Error>>(()) /// # Ok::<_, Box<dyn std::error::Error>>(())
/// ``` /// ```
@ -364,13 +361,13 @@ impl<K: DerivableKey<Segwitv0>> DescriptorTemplate for Bip49Public<K> {
/// use bdk_wallet::template::Bip84; /// use bdk_wallet::template::Bip84;
/// ///
/// let key = bitcoin::bip32::Xpriv::from_str("tprv8ZgxMBicQKsPeZRHk4rTG6orPS2CRNFX3njhUXx5vj9qGog5ZMH4uGReDWN5kCkY3jmWEtWause41CDvBRXD1shKknAMKxT99o9qUTRVC6m")?; /// let key = bitcoin::bip32::Xpriv::from_str("tprv8ZgxMBicQKsPeZRHk4rTG6orPS2CRNFX3njhUXx5vj9qGog5ZMH4uGReDWN5kCkY3jmWEtWause41CDvBRXD1shKknAMKxT99o9qUTRVC6m")?;
/// let mut wallet = Wallet::new_no_persist( /// let mut wallet = Wallet::new(
/// Bip84(key.clone(), KeychainKind::External), /// Bip84(key.clone(), KeychainKind::External),
/// Bip84(key, KeychainKind::Internal), /// Bip84(key, KeychainKind::Internal),
/// Network::Testnet, /// Network::Testnet,
/// )?; /// )?;
/// ///
/// assert_eq!(wallet.next_unused_address(KeychainKind::External)?.to_string(), "tb1qhl85z42h7r4su5u37rvvw0gk8j2t3n9y7zsg4n"); /// assert_eq!(wallet.next_unused_address(KeychainKind::External).to_string(), "tb1qhl85z42h7r4su5u37rvvw0gk8j2t3n9y7zsg4n");
/// assert_eq!(wallet.public_descriptor(KeychainKind::External).to_string(), "wpkh([c55b303f/84'/1'/0']tpubDDc5mum24DekpNw92t6fHGp8Gr2JjF9J7i4TZBtN6Vp8xpAULG5CFaKsfugWa5imhrQQUZKXe261asP5koDHo5bs3qNTmf3U3o4v9SaB8gg/0/*)#6kfecsmr"); /// assert_eq!(wallet.public_descriptor(KeychainKind::External).to_string(), "wpkh([c55b303f/84'/1'/0']tpubDDc5mum24DekpNw92t6fHGp8Gr2JjF9J7i4TZBtN6Vp8xpAULG5CFaKsfugWa5imhrQQUZKXe261asP5koDHo5bs3qNTmf3U3o4v9SaB8gg/0/*)#6kfecsmr");
/// # Ok::<_, Box<dyn std::error::Error>>(()) /// # Ok::<_, Box<dyn std::error::Error>>(())
/// ``` /// ```
@ -401,13 +398,13 @@ impl<K: DerivableKey<Segwitv0>> DescriptorTemplate for Bip84<K> {
/// ///
/// let key = bitcoin::bip32::Xpub::from_str("tpubDC2Qwo2TFsaNC4ju8nrUJ9mqVT3eSgdmy1yPqhgkjwmke3PRXutNGRYAUo6RCHTcVQaDR3ohNU9we59brGHuEKPvH1ags2nevW5opEE9Z5Q")?; /// let key = bitcoin::bip32::Xpub::from_str("tpubDC2Qwo2TFsaNC4ju8nrUJ9mqVT3eSgdmy1yPqhgkjwmke3PRXutNGRYAUo6RCHTcVQaDR3ohNU9we59brGHuEKPvH1ags2nevW5opEE9Z5Q")?;
/// let fingerprint = bitcoin::bip32::Fingerprint::from_str("c55b303f")?; /// let fingerprint = bitcoin::bip32::Fingerprint::from_str("c55b303f")?;
/// let mut wallet = Wallet::new_no_persist( /// let mut wallet = Wallet::new(
/// Bip84Public(key.clone(), fingerprint, KeychainKind::External), /// Bip84Public(key.clone(), fingerprint, KeychainKind::External),
/// Bip84Public(key, fingerprint, KeychainKind::Internal), /// Bip84Public(key, fingerprint, KeychainKind::Internal),
/// Network::Testnet, /// Network::Testnet,
/// )?; /// )?;
/// ///
/// assert_eq!(wallet.next_unused_address(KeychainKind::External)?.to_string(), "tb1qedg9fdlf8cnnqfd5mks6uz5w4kgpk2pr6y4qc7"); /// assert_eq!(wallet.next_unused_address(KeychainKind::External).to_string(), "tb1qedg9fdlf8cnnqfd5mks6uz5w4kgpk2pr6y4qc7");
/// assert_eq!(wallet.public_descriptor(KeychainKind::External).to_string(), "wpkh([c55b303f/84'/1'/0']tpubDC2Qwo2TFsaNC4ju8nrUJ9mqVT3eSgdmy1yPqhgkjwmke3PRXutNGRYAUo6RCHTcVQaDR3ohNU9we59brGHuEKPvH1ags2nevW5opEE9Z5Q/0/*)#dhu402yv"); /// assert_eq!(wallet.public_descriptor(KeychainKind::External).to_string(), "wpkh([c55b303f/84'/1'/0']tpubDC2Qwo2TFsaNC4ju8nrUJ9mqVT3eSgdmy1yPqhgkjwmke3PRXutNGRYAUo6RCHTcVQaDR3ohNU9we59brGHuEKPvH1ags2nevW5opEE9Z5Q/0/*)#dhu402yv");
/// # Ok::<_, Box<dyn std::error::Error>>(()) /// # Ok::<_, Box<dyn std::error::Error>>(())
/// ``` /// ```
@ -437,13 +434,13 @@ impl<K: DerivableKey<Segwitv0>> DescriptorTemplate for Bip84Public<K> {
/// use bdk_wallet::template::Bip86; /// use bdk_wallet::template::Bip86;
/// ///
/// let key = bitcoin::bip32::Xpriv::from_str("tprv8ZgxMBicQKsPeZRHk4rTG6orPS2CRNFX3njhUXx5vj9qGog5ZMH4uGReDWN5kCkY3jmWEtWause41CDvBRXD1shKknAMKxT99o9qUTRVC6m")?; /// let key = bitcoin::bip32::Xpriv::from_str("tprv8ZgxMBicQKsPeZRHk4rTG6orPS2CRNFX3njhUXx5vj9qGog5ZMH4uGReDWN5kCkY3jmWEtWause41CDvBRXD1shKknAMKxT99o9qUTRVC6m")?;
/// let mut wallet = Wallet::new_no_persist( /// let mut wallet = Wallet::new(
/// Bip86(key.clone(), KeychainKind::External), /// Bip86(key.clone(), KeychainKind::External),
/// Bip86(key, KeychainKind::Internal), /// Bip86(key, KeychainKind::Internal),
/// Network::Testnet, /// Network::Testnet,
/// )?; /// )?;
/// ///
/// assert_eq!(wallet.next_unused_address(KeychainKind::External)?.to_string(), "tb1p5unlj09djx8xsjwe97269kqtxqpwpu2epeskgqjfk4lnf69v4tnqpp35qu"); /// assert_eq!(wallet.next_unused_address(KeychainKind::External).to_string(), "tb1p5unlj09djx8xsjwe97269kqtxqpwpu2epeskgqjfk4lnf69v4tnqpp35qu");
/// assert_eq!(wallet.public_descriptor(KeychainKind::External).to_string(), "tr([c55b303f/86'/1'/0']tpubDCiHofpEs47kx358bPdJmTZHmCDqQ8qw32upCSxHrSEdeeBs2T5Mq6QMB2ukeMqhNBiyhosBvJErteVhfURPGXPv3qLJPw5MVpHUewsbP2m/0/*)#dkgvr5hm"); /// assert_eq!(wallet.public_descriptor(KeychainKind::External).to_string(), "tr([c55b303f/86'/1'/0']tpubDCiHofpEs47kx358bPdJmTZHmCDqQ8qw32upCSxHrSEdeeBs2T5Mq6QMB2ukeMqhNBiyhosBvJErteVhfURPGXPv3qLJPw5MVpHUewsbP2m/0/*)#dkgvr5hm");
/// # Ok::<_, Box<dyn std::error::Error>>(()) /// # Ok::<_, Box<dyn std::error::Error>>(())
/// ``` /// ```
@ -474,13 +471,13 @@ impl<K: DerivableKey<Tap>> DescriptorTemplate for Bip86<K> {
/// ///
/// let key = bitcoin::bip32::Xpub::from_str("tpubDC2Qwo2TFsaNC4ju8nrUJ9mqVT3eSgdmy1yPqhgkjwmke3PRXutNGRYAUo6RCHTcVQaDR3ohNU9we59brGHuEKPvH1ags2nevW5opEE9Z5Q")?; /// let key = bitcoin::bip32::Xpub::from_str("tpubDC2Qwo2TFsaNC4ju8nrUJ9mqVT3eSgdmy1yPqhgkjwmke3PRXutNGRYAUo6RCHTcVQaDR3ohNU9we59brGHuEKPvH1ags2nevW5opEE9Z5Q")?;
/// let fingerprint = bitcoin::bip32::Fingerprint::from_str("c55b303f")?; /// let fingerprint = bitcoin::bip32::Fingerprint::from_str("c55b303f")?;
/// let mut wallet = Wallet::new_no_persist( /// let mut wallet = Wallet::new(
/// Bip86Public(key.clone(), fingerprint, KeychainKind::External), /// Bip86Public(key.clone(), fingerprint, KeychainKind::External),
/// Bip86Public(key, fingerprint, KeychainKind::Internal), /// Bip86Public(key, fingerprint, KeychainKind::Internal),
/// Network::Testnet, /// Network::Testnet,
/// )?; /// )?;
/// ///
/// assert_eq!(wallet.next_unused_address(KeychainKind::External)?.to_string(), "tb1pwjp9f2k5n0xq73ecuu0c5njvgqr3vkh7yaylmpqvsuuaafymh0msvcmh37"); /// assert_eq!(wallet.next_unused_address(KeychainKind::External).to_string(), "tb1pwjp9f2k5n0xq73ecuu0c5njvgqr3vkh7yaylmpqvsuuaafymh0msvcmh37");
/// assert_eq!(wallet.public_descriptor(KeychainKind::External).to_string(), "tr([c55b303f/86'/1'/0']tpubDC2Qwo2TFsaNC4ju8nrUJ9mqVT3eSgdmy1yPqhgkjwmke3PRXutNGRYAUo6RCHTcVQaDR3ohNU9we59brGHuEKPvH1ags2nevW5opEE9Z5Q/0/*)#2p65srku"); /// assert_eq!(wallet.public_descriptor(KeychainKind::External).to_string(), "tr([c55b303f/86'/1'/0']tpubDC2Qwo2TFsaNC4ju8nrUJ9mqVT3eSgdmy1yPqhgkjwmke3PRXutNGRYAUo6RCHTcVQaDR3ohNU9we59brGHuEKPvH1ags2nevW5opEE9Z5Q/0/*)#2p65srku");
/// # Ok::<_, Box<dyn std::error::Error>>(()) /// # Ok::<_, Box<dyn std::error::Error>>(())
/// ``` /// ```

1
crates/wallet/src/wallet/coin_selection.rs
View File

@ -28,7 +28,6 @@
//! # use bitcoin::*; //! # use bitcoin::*;
//! # use bdk_wallet::wallet::{self, ChangeSet, coin_selection::*, coin_selection}; //! # use bdk_wallet::wallet::{self, ChangeSet, coin_selection::*, coin_selection};
//! # use bdk_wallet::wallet::error::CreateTxError; //! # use bdk_wallet::wallet::error::CreateTxError;
//! # use bdk_persist::PersistBackend;
//! # use bdk_wallet::*; //! # use bdk_wallet::*;
//! # use bdk_wallet::wallet::coin_selection::decide_change; //! # use bdk_wallet::wallet::coin_selection::decide_change;
//! # use anyhow::Error; //! # use anyhow::Error;

9
crates/wallet/src/wallet/error.rs
View File

@ -50,8 +50,6 @@ impl std::error::Error for MiniscriptPsbtError {}
pub enum CreateTxError { pub enum CreateTxError {
/// There was a problem with the descriptors passed in /// There was a problem with the descriptors passed in
Descriptor(DescriptorError), Descriptor(DescriptorError),
/// We were unable to load wallet data from or write wallet data to the persistence backend
Persist(anyhow::Error),
/// There was a problem while extracting and manipulating policies /// There was a problem while extracting and manipulating policies
Policy(PolicyError), Policy(PolicyError),
/// Spending policy is not compatible with this [`KeychainKind`] /// Spending policy is not compatible with this [`KeychainKind`]
@ -114,13 +112,6 @@ impl fmt::Display for CreateTxError {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
match self { match self {
Self::Descriptor(e) => e.fmt(f), Self::Descriptor(e) => e.fmt(f),
Self::Persist(e) => {
write!(
f,
"failed to load wallet data from or write wallet data to persistence backend: {}",
e
)
}
Self::Policy(e) => e.fmt(f), Self::Policy(e) => e.fmt(f),
CreateTxError::SpendingPolicyRequired(keychain_kind) => { CreateTxError::SpendingPolicyRequired(keychain_kind) => {
write!(f, "Spending policy required: {:?}", keychain_kind) write!(f, "Spending policy required: {:?}", keychain_kind)

6
crates/wallet/src/wallet/export.rs
View File

@ -29,7 +29,7 @@
//! }"#; //! }"#;
//! //!
//! let import = FullyNodedExport::from_str(import)?; //! let import = FullyNodedExport::from_str(import)?;
//! let wallet = Wallet::new_no_persist( //! let wallet = Wallet::new(
//! &import.descriptor(), //! &import.descriptor(),
//! &import.change_descriptor().expect("change descriptor"), //! &import.change_descriptor().expect("change descriptor"),
//! Network::Testnet, //! Network::Testnet,
@ -42,7 +42,7 @@
//! # use bitcoin::*; //! # use bitcoin::*;
//! # use bdk_wallet::wallet::export::*; //! # use bdk_wallet::wallet::export::*;
//! # use bdk_wallet::*; //! # use bdk_wallet::*;
//! let wallet = Wallet::new_no_persist( //! let wallet = Wallet::new(
//! "wpkh([c258d2e4/84h/1h/0h]tpubDD3ynpHgJQW8VvWRzQ5WFDCrs4jqVFGHB3vLC3r49XHJSqP8bHKdK4AriuUKLccK68zfzowx7YhmDN8SiSkgCDENUFx9qVw65YyqM78vyVe/0/*)", //! "wpkh([c258d2e4/84h/1h/0h]tpubDD3ynpHgJQW8VvWRzQ5WFDCrs4jqVFGHB3vLC3r49XHJSqP8bHKdK4AriuUKLccK68zfzowx7YhmDN8SiSkgCDENUFx9qVw65YyqM78vyVe/0/*)",
//! "wpkh([c258d2e4/84h/1h/0h]tpubDD3ynpHgJQW8VvWRzQ5WFDCrs4jqVFGHB3vLC3r49XHJSqP8bHKdK4AriuUKLccK68zfzowx7YhmDN8SiSkgCDENUFx9qVw65YyqM78vyVe/1/*)", //! "wpkh([c258d2e4/84h/1h/0h]tpubDD3ynpHgJQW8VvWRzQ5WFDCrs4jqVFGHB3vLC3r49XHJSqP8bHKdK4AriuUKLccK68zfzowx7YhmDN8SiSkgCDENUFx9qVw65YyqM78vyVe/1/*)",
//! Network::Testnet, //! Network::Testnet,
@ -222,7 +222,7 @@ mod test {
use crate::wallet::Wallet; use crate::wallet::Wallet;
fn get_test_wallet(descriptor: &str, change_descriptor: &str, network: Network) -> Wallet { fn get_test_wallet(descriptor: &str, change_descriptor: &str, network: Network) -> Wallet {
let mut wallet = Wallet::new_no_persist(descriptor, change_descriptor, network).unwrap(); let mut wallet = Wallet::new(descriptor, change_descriptor, network).unwrap();
let transaction = Transaction { let transaction = Transaction {
input: vec![], input: vec![],
output: vec![], output: vec![],

2
crates/wallet/src/wallet/hardwaresigner.rs
View File

@ -30,7 +30,7 @@
//! let first_device = devices.remove(0)?; //! let first_device = devices.remove(0)?;
//! let custom_signer = HWISigner::from_device(&first_device, Network::Testnet.into())?; //! let custom_signer = HWISigner::from_device(&first_device, Network::Testnet.into())?;
//! //!
//! # let mut wallet = Wallet::new_no_persist( //! # let mut wallet = Wallet::new(
//! # "", //! # "",
//! # None, //! # None,
//! # Network::Testnet, //! # Network::Testnet,

506
crates/wallet/src/wallet/mod.rs
View File

@ -31,7 +31,6 @@ use bdk_chain::{
Append, BlockId, ChainPosition, ConfirmationTime, ConfirmationTimeHeightAnchor, FullTxOut, Append, BlockId, ChainPosition, ConfirmationTime, ConfirmationTimeHeightAnchor, FullTxOut,
Indexed, IndexedTxGraph, Indexed, IndexedTxGraph,
}; };
use bdk_persist::{Persist, PersistBackend};
use bitcoin::secp256k1::{All, Secp256k1}; use bitcoin::secp256k1::{All, Secp256k1};
use bitcoin::sighash::{EcdsaSighashType, TapSighashType}; use bitcoin::sighash::{EcdsaSighashType, TapSighashType};
use bitcoin::{ use bitcoin::{
@ -41,6 +40,7 @@ use bitcoin::{
use bitcoin::{consensus::encode::serialize, transaction, BlockHash, Psbt}; use bitcoin::{consensus::encode::serialize, transaction, BlockHash, Psbt};
use bitcoin::{constants::genesis_block, Amount}; use bitcoin::{constants::genesis_block, Amount};
use core::fmt; use core::fmt;
use core::mem;
use core::ops::Deref; use core::ops::Deref;
use descriptor::error::Error as DescriptorError; use descriptor::error::Error as DescriptorError;
use miniscript::psbt::{PsbtExt, PsbtInputExt, PsbtInputSatisfier}; use miniscript::psbt::{PsbtExt, PsbtInputExt, PsbtInputSatisfier};
@ -85,6 +85,11 @@ const COINBASE_MATURITY: u32 = 100;
/// 1. output *descriptors* from which it can derive addresses. /// 1. output *descriptors* from which it can derive addresses.
/// 2. [`signer`]s that can contribute signatures to addresses instantiated from the descriptors. /// 2. [`signer`]s that can contribute signatures to addresses instantiated from the descriptors.
/// ///
/// The user is responsible for loading and writing wallet changes using an implementation of
/// [`PersistBackend`]. See individual functions and example for instructions on when [`Wallet`]
/// state needs to be persisted.
///
/// [`PersistBackend`]: bdk_chain::persist::PersistBackend
/// [`signer`]: crate::signer /// [`signer`]: crate::signer
#[derive(Debug)] #[derive(Debug)]
pub struct Wallet { pub struct Wallet {
@ -92,7 +97,7 @@ pub struct Wallet {
change_signers: Arc<SignersContainer>, change_signers: Arc<SignersContainer>,
chain: LocalChain, chain: LocalChain,
indexed_graph: IndexedTxGraph<ConfirmationTimeHeightAnchor, KeychainTxOutIndex<KeychainKind>>, indexed_graph: IndexedTxGraph<ConfirmationTimeHeightAnchor, KeychainTxOutIndex<KeychainKind>>,
persist: Persist<ChangeSet>, stage: ChangeSet,
network: Network, network: Network,
secp: SecpCtx, secp: SecpCtx,
} }
@ -136,7 +141,8 @@ impl From<SyncResult> for Update {
} }
/// The changes made to a wallet by applying an [`Update`]. /// The changes made to a wallet by applying an [`Update`].
pub type ChangeSet = bdk_persist::CombinedChangeSet<KeychainKind, ConfirmationTimeHeightAnchor>; pub type ChangeSet =
bdk_chain::persist::CombinedChangeSet<KeychainKind, ConfirmationTimeHeightAnchor>;
/// A derived address and the index it was found at. /// A derived address and the index it was found at.
/// For convenience this automatically derefs to `Address` /// For convenience this automatically derefs to `Address`
@ -164,36 +170,6 @@ impl fmt::Display for AddressInfo {
} }
} }
impl Wallet {
/// Creates a wallet that does not persist data.
pub fn new_no_persist<E: IntoWalletDescriptor>(
descriptor: E,
change_descriptor: E,
network: Network,
) -> Result<Self, DescriptorError> {
Self::new(descriptor, change_descriptor, (), network).map_err(|e| match e {
NewError::NonEmptyDatabase => unreachable!("mock-database cannot have data"),
NewError::Descriptor(e) => e,
NewError::Persist(_) => unreachable!("mock-write must always succeed"),
})
}
/// Creates a wallet that does not persist data, with a custom genesis hash.
pub fn new_no_persist_with_genesis_hash<E: IntoWalletDescriptor>(
descriptor: E,
change_descriptor: E,
network: Network,
genesis_hash: BlockHash,
) -> Result<Self, crate::descriptor::DescriptorError> {
Self::new_with_genesis_hash(descriptor, change_descriptor, (), network, genesis_hash)
.map_err(|e| match e {
NewError::NonEmptyDatabase => unreachable!("mock-database cannot have data"),
NewError::Descriptor(e) => e,
NewError::Persist(_) => unreachable!("mock-write must always succeed"),
})
}
}
/// The error type when constructing a fresh [`Wallet`]. /// The error type when constructing a fresh [`Wallet`].
/// ///
/// Methods [`new`] and [`new_with_genesis_hash`] may return this error. /// Methods [`new`] and [`new_with_genesis_hash`] may return this error.
@ -202,23 +178,14 @@ impl Wallet {
/// [`new_with_genesis_hash`]: Wallet::new_with_genesis_hash /// [`new_with_genesis_hash`]: Wallet::new_with_genesis_hash
#[derive(Debug)] #[derive(Debug)]
pub enum NewError { pub enum NewError {
/// Database already has data.
NonEmptyDatabase,
/// There was problem with the passed-in descriptor(s). /// There was problem with the passed-in descriptor(s).
Descriptor(crate::descriptor::DescriptorError), Descriptor(crate::descriptor::DescriptorError),
/// We were unable to write the wallet's data to the persistence backend.
Persist(anyhow::Error),
} }
impl fmt::Display for NewError { impl fmt::Display for NewError {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
match self { match self {
NewError::NonEmptyDatabase => write!(
f,
"database already has data - use `load` or `new_or_load` methods instead"
),
NewError::Descriptor(e) => e.fmt(f), NewError::Descriptor(e) => e.fmt(f),
NewError::Persist(e) => e.fmt(f),
} }
} }
} }
@ -226,19 +193,15 @@ impl fmt::Display for NewError {
#[cfg(feature = "std")] #[cfg(feature = "std")]
impl std::error::Error for NewError {} impl std::error::Error for NewError {}
/// The error type when loading a [`Wallet`] from persistence. /// The error type when loading a [`Wallet`] from a [`ChangeSet`].
/// ///
/// Method [`load`] may return this error. /// Method [`load_from_changeset`] may return this error.
/// ///
/// [`load`]: Wallet::load /// [`load_from_changeset`]: Wallet::load_from_changeset
#[derive(Debug)] #[derive(Debug)]
pub enum LoadError { pub enum LoadError {
/// There was a problem with the passed-in descriptor(s). /// There was a problem with the passed-in descriptor(s).
Descriptor(crate::descriptor::DescriptorError), Descriptor(crate::descriptor::DescriptorError),
/// Loading data from the persistence backend failed.
Persist(anyhow::Error),
/// Wallet not initialized, persistence backend is empty.
NotInitialized,
/// Data loaded from persistence is missing network type. /// Data loaded from persistence is missing network type.
MissingNetwork, MissingNetwork,
/// Data loaded from persistence is missing genesis hash. /// Data loaded from persistence is missing genesis hash.
@ -251,10 +214,6 @@ impl fmt::Display for LoadError {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
match self { match self {
LoadError::Descriptor(e) => e.fmt(f), LoadError::Descriptor(e) => e.fmt(f),
LoadError::Persist(e) => e.fmt(f),
LoadError::NotInitialized => {
write!(f, "wallet is not initialized, persistence backend is empty")
}
LoadError::MissingNetwork => write!(f, "loaded data is missing network type"), LoadError::MissingNetwork => write!(f, "loaded data is missing network type"),
LoadError::MissingGenesis => write!(f, "loaded data is missing genesis hash"), LoadError::MissingGenesis => write!(f, "loaded data is missing genesis hash"),
LoadError::MissingDescriptor(k) => { LoadError::MissingDescriptor(k) => {
@ -277,10 +236,6 @@ impl std::error::Error for LoadError {}
pub enum NewOrLoadError { pub enum NewOrLoadError {
/// There is a problem with the passed-in descriptor. /// There is a problem with the passed-in descriptor.
Descriptor(crate::descriptor::DescriptorError), Descriptor(crate::descriptor::DescriptorError),
/// Either writing to or loading from the persistence backend failed.
Persist(anyhow::Error),
/// Wallet is not initialized, persistence backend is empty.
NotInitialized,
/// The loaded genesis hash does not match what was provided. /// The loaded genesis hash does not match what was provided.
LoadedGenesisDoesNotMatch { LoadedGenesisDoesNotMatch {
/// The expected genesis block hash. /// The expected genesis block hash.
@ -308,14 +263,6 @@ impl fmt::Display for NewOrLoadError {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
match self { match self {
NewOrLoadError::Descriptor(e) => e.fmt(f), NewOrLoadError::Descriptor(e) => e.fmt(f),
NewOrLoadError::Persist(e) => write!(
f,
"failed to either write to or load from persistence, {}",
e
),
NewOrLoadError::NotInitialized => {
write!(f, "wallet is not initialized, persistence backend is empty")
}
NewOrLoadError::LoadedGenesisDoesNotMatch { expected, got } => { NewOrLoadError::LoadedGenesisDoesNotMatch { expected, got } => {
write!(f, "loaded genesis hash is not {}, got {:?}", expected, got) write!(f, "loaded genesis hash is not {}, got {:?}", expected, got)
} }
@ -403,11 +350,10 @@ impl Wallet {
pub fn new<E: IntoWalletDescriptor>( pub fn new<E: IntoWalletDescriptor>(
descriptor: E, descriptor: E,
change_descriptor: E, change_descriptor: E,
db: impl PersistBackend<ChangeSet> + Send + Sync + 'static,
network: Network, network: Network,
) -> Result<Self, NewError> { ) -> Result<Self, NewError> {
let genesis_hash = genesis_block(network).block_hash(); let genesis_hash = genesis_block(network).block_hash();
Self::new_with_genesis_hash(descriptor, change_descriptor, db, network, genesis_hash) Self::new_with_genesis_hash(descriptor, change_descriptor, network, genesis_hash)
} }
/// Initialize an empty [`Wallet`] with a custom genesis hash. /// Initialize an empty [`Wallet`] with a custom genesis hash.
@ -417,15 +363,9 @@ impl Wallet {
pub fn new_with_genesis_hash<E: IntoWalletDescriptor>( pub fn new_with_genesis_hash<E: IntoWalletDescriptor>(
descriptor: E, descriptor: E,
change_descriptor: E, change_descriptor: E,
mut db: impl PersistBackend<ChangeSet> + Send + Sync + 'static,
network: Network, network: Network,
genesis_hash: BlockHash, genesis_hash: BlockHash,
) -> Result<Self, NewError> { ) -> Result<Self, NewError> {
if let Ok(changeset) = db.load_from_persistence() {
if changeset.is_some() {
return Err(NewError::NonEmptyDatabase);
}
}
let secp = Secp256k1::new(); let secp = Secp256k1::new();
let (chain, chain_changeset) = LocalChain::from_genesis_hash(genesis_hash); let (chain, chain_changeset) = LocalChain::from_genesis_hash(genesis_hash);
let mut index = KeychainTxOutIndex::<KeychainKind>::default(); let mut index = KeychainTxOutIndex::<KeychainKind>::default();
@ -436,13 +376,11 @@ impl Wallet {
let indexed_graph = IndexedTxGraph::new(index); let indexed_graph = IndexedTxGraph::new(index);
let mut persist = Persist::new(db); let staged = ChangeSet {
persist.stage(ChangeSet {
chain: chain_changeset, chain: chain_changeset,
indexed_tx_graph: indexed_graph.initial_changeset(), indexed_tx_graph: indexed_graph.initial_changeset(),
network: Some(network), network: Some(network),
}); };
persist.commit().map_err(NewError::Persist)?;
Ok(Wallet { Ok(Wallet {
signers, signers,
@ -450,12 +388,24 @@ impl Wallet {
network, network,
chain, chain,
indexed_graph, indexed_graph,
persist, stage: staged,
secp, secp,
}) })
} }
/// Load [`Wallet`] from the given persistence backend. /// Stage a ['ChangeSet'] to be persisted later.
///
/// [`commit`]: Self::commit
fn stage(&mut self, changeset: ChangeSet) {
self.stage.append(changeset)
}
/// Take the staged [`ChangeSet`] to be persisted now.
pub fn take_staged(&mut self) -> ChangeSet {
mem::take(&mut self.stage)
}
/// Load [`Wallet`] from the given previously persisted [`ChangeSet`].
/// ///
/// Note that the descriptor secret keys are not persisted to the db; this means that after /// Note that the descriptor secret keys are not persisted to the db; this means that after
/// calling this method the [`Wallet`] **won't** know the secret keys, and as such, won't be /// calling this method the [`Wallet`] **won't** know the secret keys, and as such, won't be
@ -473,10 +423,11 @@ impl Wallet {
/// # use bdk_sqlite::{Store, rusqlite::Connection}; /// # use bdk_sqlite::{Store, rusqlite::Connection};
/// # /// #
/// # fn main() -> Result<(), anyhow::Error> { /// # fn main() -> Result<(), anyhow::Error> {
/// # use bdk_chain::persist::PersistBackend;
/// # let temp_dir = tempfile::tempdir().expect("must create tempdir"); /// # let temp_dir = tempfile::tempdir().expect("must create tempdir");
/// # let file_path = temp_dir.path().join("store.db"); /// # let file_path = temp_dir.path().join("store.db");
/// # let conn = Connection::open(file_path).expect("must open connection"); /// # let conn = Connection::open(file_path).expect("must open connection");
/// # let db = Store::new(conn).expect("must create db"); /// # let mut db = Store::new(conn).expect("must create db");
/// let secp = Secp256k1::new(); /// let secp = Secp256k1::new();
/// ///
/// let (external_descriptor, external_keymap) = Descriptor::parse_descriptor(&secp, "wpkh(tprv8ZgxMBicQKsPdy6LMhUtFHAgpocR8GC6QmwMSFpZs7h6Eziw3SpThFfczTDh5rW2krkqffa11UpX3XkeTTB2FvzZKWXqPY54Y6Rq4AQ5R8L/84'/1'/0'/0/*)").unwrap(); /// let (external_descriptor, external_keymap) = Descriptor::parse_descriptor(&secp, "wpkh(tprv8ZgxMBicQKsPdy6LMhUtFHAgpocR8GC6QmwMSFpZs7h6Eziw3SpThFfczTDh5rW2krkqffa11UpX3XkeTTB2FvzZKWXqPY54Y6Rq4AQ5R8L/84'/1'/0'/0/*)").unwrap();
@ -484,8 +435,8 @@ impl Wallet {
/// ///
/// let external_signer_container = SignersContainer::build(external_keymap, &external_descriptor, &secp); /// let external_signer_container = SignersContainer::build(external_keymap, &external_descriptor, &secp);
/// let internal_signer_container = SignersContainer::build(internal_keymap, &internal_descriptor, &secp); /// let internal_signer_container = SignersContainer::build(internal_keymap, &internal_descriptor, &secp);
/// /// let changeset = db.load_changes()?.expect("there must be an existing changeset");
/// let mut wallet = Wallet::load(db)?; /// let mut wallet = Wallet::load_from_changeset(changeset)?;
/// ///
/// external_signer_container.signers().into_iter() /// external_signer_container.signers().into_iter()
/// .for_each(|s| wallet.add_signer(KeychainKind::External, SignerOrdering::default(), s.clone())); /// .for_each(|s| wallet.add_signer(KeychainKind::External, SignerOrdering::default(), s.clone()));
@ -497,20 +448,7 @@ impl Wallet {
/// ///
/// Alternatively, you can call [`Wallet::new_or_load`], which will add the private keys of the /// Alternatively, you can call [`Wallet::new_or_load`], which will add the private keys of the
/// passed-in descriptors to the [`Wallet`]. /// passed-in descriptors to the [`Wallet`].
pub fn load( pub fn load_from_changeset(changeset: ChangeSet) -> Result<Self, LoadError> {
mut db: impl PersistBackend<ChangeSet> + Send + Sync + 'static,
) -> Result<Self, LoadError> {
let changeset = db
.load_from_persistence()
.map_err(LoadError::Persist)?
.ok_or(LoadError::NotInitialized)?;
Self::load_from_changeset(db, changeset)
}
fn load_from_changeset(
db: impl PersistBackend<ChangeSet> + Send + Sync + 'static,
changeset: ChangeSet,
) -> Result<Self, LoadError> {
let secp = Secp256k1::new(); let secp = Secp256k1::new();
let network = changeset.network.ok_or(LoadError::MissingNetwork)?; let network = changeset.network.ok_or(LoadError::MissingNetwork)?;
let chain = let chain =
@ -538,157 +476,156 @@ impl Wallet {
let mut indexed_graph = IndexedTxGraph::new(index); let mut indexed_graph = IndexedTxGraph::new(index);
indexed_graph.apply_changeset(changeset.indexed_tx_graph); indexed_graph.apply_changeset(changeset.indexed_tx_graph);
let persist = Persist::new(db); let stage = ChangeSet::default();
Ok(Wallet { Ok(Wallet {
signers, signers,
change_signers, change_signers,
chain, chain,
indexed_graph, indexed_graph,
persist, stage,
network, network,
secp, secp,
}) })
} }
/// Either loads [`Wallet`] from persistence, or initializes it if it does not exist. /// Either loads [`Wallet`] from the given [`ChangeSet`] or initializes it if one does not exist.
/// ///
/// This method will fail if the loaded [`Wallet`] has different parameters to those provided. /// This method will fail if the loaded [`ChangeSet`] has different parameters to those provided.
///
/// ```rust,no_run
/// # use bdk_chain::persist::PersistBackend;
/// # use bdk_wallet::Wallet;
/// # use bdk_sqlite::{Store, rusqlite::Connection};
/// # use bitcoin::Network::Testnet;
/// # let conn = Connection::open_in_memory().expect("must open connection");
/// let mut db = Store::new(conn).expect("must create db");
/// let changeset = db.load_changes()?;
///
/// let external_descriptor = "wpkh(tprv8ZgxMBicQKsPdy6LMhUtFHAgpocR8GC6QmwMSFpZs7h6Eziw3SpThFfczTDh5rW2krkqffa11UpX3XkeTTB2FvzZKWXqPY54Y6Rq4AQ5R8L/84'/1'/0'/0/*)";
/// let internal_descriptor = "wpkh(tprv8ZgxMBicQKsPdy6LMhUtFHAgpocR8GC6QmwMSFpZs7h6Eziw3SpThFfczTDh5rW2krkqffa11UpX3XkeTTB2FvzZKWXqPY54Y6Rq4AQ5R8L/84'/1'/0'/1/*)";
///
/// let mut wallet = Wallet::new_or_load(external_descriptor, internal_descriptor, changeset, Testnet)?;
/// # Ok::<(), anyhow::Error>(())
/// ```
pub fn new_or_load<E: IntoWalletDescriptor>( pub fn new_or_load<E: IntoWalletDescriptor>(
descriptor: E, descriptor: E,
change_descriptor: E, change_descriptor: E,
db: impl PersistBackend<ChangeSet> + Send + Sync + 'static, changeset: Option<ChangeSet>,
network: Network, network: Network,
) -> Result<Self, NewOrLoadError> { ) -> Result<Self, NewOrLoadError> {
let genesis_hash = genesis_block(network).block_hash(); let genesis_hash = genesis_block(network).block_hash();
Self::new_or_load_with_genesis_hash( Self::new_or_load_with_genesis_hash(
descriptor, descriptor,
change_descriptor, change_descriptor,
db, changeset,
network, network,
genesis_hash, genesis_hash,
) )
} }
/// Either loads [`Wallet`] from persistence, or initializes it if it does not exist, using the /// Either loads [`Wallet`] from a [`ChangeSet`] or initializes it if one does not exist, using the
/// provided descriptor, change descriptor, network, and custom genesis hash. /// provided descriptor, change descriptor, network, and custom genesis hash.
/// ///
/// This method will fail if the loaded [`Wallet`] has different parameters to those provided. /// This method will fail if the loaded [`ChangeSet`] has different parameters to those provided.
/// This is like [`Wallet::new_or_load`] with an additional `genesis_hash` parameter. This is /// This is like [`Wallet::new_or_load`] with an additional `genesis_hash` parameter. This is
/// useful for syncing from alternative networks. /// useful for syncing from alternative networks.
pub fn new_or_load_with_genesis_hash<E: IntoWalletDescriptor>( pub fn new_or_load_with_genesis_hash<E: IntoWalletDescriptor>(
descriptor: E, descriptor: E,
change_descriptor: E, change_descriptor: E,
mut db: impl PersistBackend<ChangeSet> + Send + Sync + 'static, changeset: Option<ChangeSet>,
network: Network, network: Network,
genesis_hash: BlockHash, genesis_hash: BlockHash,
) -> Result<Self, NewOrLoadError> { ) -> Result<Self, NewOrLoadError> {
let changeset = db if let Some(changeset) = changeset {
.load_from_persistence() let mut wallet = Self::load_from_changeset(changeset).map_err(|e| match e {
.map_err(NewOrLoadError::Persist)?; LoadError::Descriptor(e) => NewOrLoadError::Descriptor(e),
match changeset { LoadError::MissingNetwork => NewOrLoadError::LoadedNetworkDoesNotMatch {
Some(changeset) => { expected: network,
let mut wallet = Self::load_from_changeset(db, changeset).map_err(|e| match e { got: None,
LoadError::Descriptor(e) => NewOrLoadError::Descriptor(e), },
LoadError::Persist(e) => NewOrLoadError::Persist(e), LoadError::MissingGenesis => NewOrLoadError::LoadedGenesisDoesNotMatch {
LoadError::NotInitialized => NewOrLoadError::NotInitialized, expected: genesis_hash,
LoadError::MissingNetwork => NewOrLoadError::LoadedNetworkDoesNotMatch { got: None,
expected: network, },
LoadError::MissingDescriptor(keychain) => {
NewOrLoadError::LoadedDescriptorDoesNotMatch {
got: None, got: None,
}, keychain,
LoadError::MissingGenesis => NewOrLoadError::LoadedGenesisDoesNotMatch {
expected: genesis_hash,
got: None,
},
LoadError::MissingDescriptor(keychain) => {
NewOrLoadError::LoadedDescriptorDoesNotMatch {
got: None,
keychain,
}
} }
})?;
if wallet.network != network {
return Err(NewOrLoadError::LoadedNetworkDoesNotMatch {
expected: network,
got: Some(wallet.network),
});
} }
if wallet.chain.genesis_hash() != genesis_hash { })?;
return Err(NewOrLoadError::LoadedGenesisDoesNotMatch { if wallet.network != network {
expected: genesis_hash, return Err(NewOrLoadError::LoadedNetworkDoesNotMatch {
got: Some(wallet.chain.genesis_hash()), expected: network,
}); got: Some(wallet.network),
} });
let (expected_descriptor, expected_descriptor_keymap) = descriptor
.into_wallet_descriptor(&wallet.secp, network)
.map_err(NewOrLoadError::Descriptor)?;
let wallet_descriptor = wallet.public_descriptor(KeychainKind::External);
if wallet_descriptor != &expected_descriptor {
return Err(NewOrLoadError::LoadedDescriptorDoesNotMatch {
got: Some(wallet_descriptor.clone()),
keychain: KeychainKind::External,
});
}
// if expected descriptor has private keys add them as new signers
if !expected_descriptor_keymap.is_empty() {
let signer_container = SignersContainer::build(
expected_descriptor_keymap,
&expected_descriptor,
&wallet.secp,
);
signer_container.signers().into_iter().for_each(|signer| {
wallet.add_signer(
KeychainKind::External,
SignerOrdering::default(),
signer.clone(),
)
});
}
let (expected_change_descriptor, expected_change_descriptor_keymap) =
change_descriptor
.into_wallet_descriptor(&wallet.secp, network)
.map_err(NewOrLoadError::Descriptor)?;
let wallet_change_descriptor = wallet.public_descriptor(KeychainKind::Internal);
if wallet_change_descriptor != &expected_change_descriptor {
return Err(NewOrLoadError::LoadedDescriptorDoesNotMatch {
got: Some(wallet_change_descriptor.clone()),
keychain: KeychainKind::Internal,
});
}
// if expected change descriptor has private keys add them as new signers
if !expected_change_descriptor_keymap.is_empty() {
let signer_container = SignersContainer::build(
expected_change_descriptor_keymap,
&expected_change_descriptor,
&wallet.secp,
);
signer_container.signers().into_iter().for_each(|signer| {
wallet.add_signer(
KeychainKind::Internal,
SignerOrdering::default(),
signer.clone(),
)
});
}
Ok(wallet)
} }
None => Self::new_with_genesis_hash( if wallet.chain.genesis_hash() != genesis_hash {
descriptor, return Err(NewOrLoadError::LoadedGenesisDoesNotMatch {
change_descriptor, expected: genesis_hash,
db, got: Some(wallet.chain.genesis_hash()),
network, });
genesis_hash, }
)
.map_err(|e| match e { let (expected_descriptor, expected_descriptor_keymap) = descriptor
NewError::NonEmptyDatabase => { .into_wallet_descriptor(&wallet.secp, network)
unreachable!("database is already checked to have no data") .map_err(NewOrLoadError::Descriptor)?;
} let wallet_descriptor = wallet.public_descriptor(KeychainKind::External);
NewError::Descriptor(e) => NewOrLoadError::Descriptor(e), if wallet_descriptor != &expected_descriptor {
NewError::Persist(e) => NewOrLoadError::Persist(e), return Err(NewOrLoadError::LoadedDescriptorDoesNotMatch {
}), got: Some(wallet_descriptor.clone()),
keychain: KeychainKind::External,
});
}
// if expected descriptor has private keys add them as new signers
if !expected_descriptor_keymap.is_empty() {
let signer_container = SignersContainer::build(
expected_descriptor_keymap,
&expected_descriptor,
&wallet.secp,
);
signer_container.signers().into_iter().for_each(|signer| {
wallet.add_signer(
KeychainKind::External,
SignerOrdering::default(),
signer.clone(),
)
});
}
let (expected_change_descriptor, expected_change_descriptor_keymap) = change_descriptor
.into_wallet_descriptor(&wallet.secp, network)
.map_err(NewOrLoadError::Descriptor)?;
let wallet_change_descriptor = wallet.public_descriptor(KeychainKind::Internal);
if wallet_change_descriptor != &expected_change_descriptor {
return Err(NewOrLoadError::LoadedDescriptorDoesNotMatch {
got: Some(wallet_change_descriptor.clone()),
keychain: KeychainKind::Internal,
});
}
// if expected change descriptor has private keys add them as new signers
if !expected_change_descriptor_keymap.is_empty() {
let signer_container = SignersContainer::build(
expected_change_descriptor_keymap,
&expected_change_descriptor,
&wallet.secp,
);
signer_container.signers().into_iter().for_each(|signer| {
wallet.add_signer(
KeychainKind::Internal,
SignerOrdering::default(),
signer.clone(),
)
});
}
Ok(wallet)
} else {
Self::new_with_genesis_hash(descriptor, change_descriptor, network, genesis_hash)
.map_err(|e| match e {
NewError::Descriptor(e) => NewOrLoadError::Descriptor(e),
})
} }
} }
@ -732,30 +669,46 @@ impl Wallet {
/// Attempt to reveal the next address of the given `keychain`. /// Attempt to reveal the next address of the given `keychain`.
/// ///
/// This will increment the internal derivation index. If the keychain's descriptor doesn't /// This will increment the keychain's derivation index. If the keychain's descriptor doesn't
/// contain a wildcard or every address is already revealed up to the maximum derivation /// contain a wildcard or every address is already revealed up to the maximum derivation
/// index defined in [BIP32](https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki), /// index defined in [BIP32](https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki),
/// then returns the last revealed address. /// then the last revealed address will be returned.
/// ///
/// # Errors /// **WARNING**: To avoid address reuse you must persist the changes resulting from one or more
/// calls to this method before closing the wallet. For example:
/// ///
/// If writing to persistent storage fails. /// ```rust,no_run
pub fn reveal_next_address(&mut self, keychain: KeychainKind) -> anyhow::Result<AddressInfo> { /// # use bdk_chain::persist::PersistBackend;
let ((index, spk), index_changeset) = self /// # use bdk_wallet::wallet::{Wallet, ChangeSet};
.indexed_graph /// # use bdk_wallet::KeychainKind;
.index /// # use bdk_sqlite::{Store, rusqlite::Connection};
/// # let conn = Connection::open_in_memory().expect("must open connection");
/// # let mut db = Store::new(conn).expect("must create store");
/// # let changeset = ChangeSet::default();
/// # let mut wallet = Wallet::load_from_changeset(changeset).expect("load wallet");
/// let next_address = wallet.reveal_next_address(KeychainKind::External);
/// db.write_changes(&wallet.take_staged())?;
///
/// // Now it's safe to show the user their next address!
/// println!("Next address: {}", next_address.address);
/// # Ok::<(), anyhow::Error>(())
/// ```
pub fn reveal_next_address(&mut self, keychain: KeychainKind) -> AddressInfo {
let index = &mut self.indexed_graph.index;
let stage = &mut self.stage;
let ((index, spk), index_changeset) = index
.reveal_next_spk(&keychain) .reveal_next_spk(&keychain)
.expect("keychain must exist"); .expect("keychain must exist");
self.persist stage.append(indexed_tx_graph::ChangeSet::from(index_changeset).into());
.stage_and_commit(indexed_tx_graph::ChangeSet::from(index_changeset).into())?;
Ok(AddressInfo { AddressInfo {
index, index,
address: Address::from_script(spk.as_script(), self.network) address: Address::from_script(spk.as_script(), self.network)
.expect("must have address form"), .expect("must have address form"),
keychain, keychain,
}) }
} }
/// Reveal addresses up to and including the target `index` and return an iterator /// Reveal addresses up to and including the target `index` and return an iterator
@ -765,28 +718,26 @@ impl Wallet {
/// possible index. If all addresses up to the given `index` are already revealed, then /// possible index. If all addresses up to the given `index` are already revealed, then
/// no new addresses are returned. /// no new addresses are returned.
/// ///
/// # Errors /// **WARNING**: To avoid address reuse you must persist the changes resulting from one or more
/// /// calls to this method before closing the wallet. See [`Wallet::reveal_next_address`].
/// If writing to persistent storage fails.
pub fn reveal_addresses_to( pub fn reveal_addresses_to(
&mut self, &mut self,
keychain: KeychainKind, keychain: KeychainKind,
index: u32, index: u32,
) -> anyhow::Result<impl Iterator<Item = AddressInfo> + '_> { ) -> impl Iterator<Item = AddressInfo> + '_ {
let (spks, index_changeset) = self let (spks, index_changeset) = self
.indexed_graph .indexed_graph
.index .index
.reveal_to_target(&keychain, index) .reveal_to_target(&keychain, index)
.expect("keychain must exist"); .expect("keychain must exist");
self.persist self.stage(indexed_tx_graph::ChangeSet::from(index_changeset).into());
.stage_and_commit(indexed_tx_graph::ChangeSet::from(index_changeset).into())?;
Ok(spks.into_iter().map(move |(index, spk)| AddressInfo { spks.into_iter().map(move |(index, spk)| AddressInfo {
index, index,
address: Address::from_script(&spk, self.network).expect("must have address form"), address: Address::from_script(&spk, self.network).expect("must have address form"),
keychain, keychain,
})) })
} }
/// Get the next unused address for the given `keychain`, i.e. the address with the lowest /// Get the next unused address for the given `keychain`, i.e. the address with the lowest
@ -795,25 +746,24 @@ impl Wallet {
/// This will attempt to derive and reveal a new address if no newly revealed addresses /// This will attempt to derive and reveal a new address if no newly revealed addresses
/// are available. See also [`reveal_next_address`](Self::reveal_next_address). /// are available. See also [`reveal_next_address`](Self::reveal_next_address).
/// ///
/// # Errors /// **WARNING**: To avoid address reuse you must persist the changes resulting from one or more
/// /// calls to this method before closing the wallet. See [`Wallet::reveal_next_address`].
/// If writing to persistent storage fails. pub fn next_unused_address(&mut self, keychain: KeychainKind) -> AddressInfo {
pub fn next_unused_address(&mut self, keychain: KeychainKind) -> anyhow::Result<AddressInfo> { let index = &mut self.indexed_graph.index;
let ((index, spk), index_changeset) = self
.indexed_graph let ((index, spk), index_changeset) = index
.index
.next_unused_spk(&keychain) .next_unused_spk(&keychain)
.expect("keychain must exist"); .expect("keychain must exist");
self.persist self.stage
.stage_and_commit(indexed_tx_graph::ChangeSet::from(index_changeset).into())?; .append(indexed_tx_graph::ChangeSet::from(index_changeset).into());
Ok(AddressInfo { AddressInfo {
index, index,
address: Address::from_script(spk.as_script(), self.network) address: Address::from_script(spk.as_script(), self.network)
.expect("must have address form"), .expect("must have address form"),
keychain, keychain,
}) }
} }
/// Marks an address used of the given `keychain` at `index`. /// Marks an address used of the given `keychain` at `index`.
@ -952,19 +902,20 @@ impl Wallet {
/// or [`calculate_fee_rate`] on a given transaction. Outputs inserted with this method will /// or [`calculate_fee_rate`] on a given transaction. Outputs inserted with this method will
/// not be returned in [`list_unspent`] or [`list_output`]. /// not be returned in [`list_unspent`] or [`list_output`].
/// ///
/// Any inserted `TxOut`s are not persisted until [`commit`] is called. /// **WARNINGS:** This should only be used to add `TxOut`s that the wallet does not own. Only
///
/// **WARNING:** This should only be used to add `TxOut`s that the wallet does not own. Only
/// insert `TxOut`s that you trust the values for! /// insert `TxOut`s that you trust the values for!
/// ///
/// You must persist the changes resulting from one or more calls to this method if you need
/// the inserted `TxOut` data to be reloaded after closing the wallet.
/// See [`Wallet::reveal_next_address`].
///
/// [`calculate_fee`]: Self::calculate_fee /// [`calculate_fee`]: Self::calculate_fee
/// [`calculate_fee_rate`]: Self::calculate_fee_rate /// [`calculate_fee_rate`]: Self::calculate_fee_rate
/// [`list_unspent`]: Self::list_unspent /// [`list_unspent`]: Self::list_unspent
/// [`list_output`]: Self::list_output /// [`list_output`]: Self::list_output
/// [`commit`]: Self::commit
pub fn insert_txout(&mut self, outpoint: OutPoint, txout: TxOut) { pub fn insert_txout(&mut self, outpoint: OutPoint, txout: TxOut) {
let additions = self.indexed_graph.insert_txout(outpoint, txout); let additions = self.indexed_graph.insert_txout(outpoint, txout);
self.persist.stage(ChangeSet::from(additions)); self.stage(ChangeSet::from(additions));
} }
/// Calculates the fee of a given transaction. Returns [`Amount::ZERO`] if `tx` is a coinbase transaction. /// Calculates the fee of a given transaction. Returns [`Amount::ZERO`] if `tx` is a coinbase transaction.
@ -1118,11 +1069,14 @@ impl Wallet {
} }
/// Add a new checkpoint to the wallet's internal view of the chain. /// Add a new checkpoint to the wallet's internal view of the chain.
/// This stages but does not [`commit`] the change.
/// ///
/// Returns whether anything changed with the insertion (e.g. `false` if checkpoint was already /// Returns whether anything changed with the insertion (e.g. `false` if checkpoint was already
/// there). /// there).
/// ///
/// **WARNING**: You must persist the changes resulting from one or more calls to this method
/// if you need the inserted checkpoint data to be reloaded after closing the wallet.
/// See [`Wallet::reveal_next_address`].
///
/// [`commit`]: Self::commit /// [`commit`]: Self::commit
pub fn insert_checkpoint( pub fn insert_checkpoint(
&mut self, &mut self,
@ -1130,12 +1084,12 @@ impl Wallet {
) -> Result<bool, local_chain::AlterCheckPointError> { ) -> Result<bool, local_chain::AlterCheckPointError> {
let changeset = self.chain.insert_block(block_id)?; let changeset = self.chain.insert_block(block_id)?;
let changed = !changeset.is_empty(); let changed = !changeset.is_empty();
self.persist.stage(changeset.into()); self.stage(changeset.into());
Ok(changed) Ok(changed)
} }
/// Add a transaction to the wallet's internal view of the chain. This stages but does not /// Add a transaction to the wallet's internal view of the chain. This stages the change,
/// [`commit`] the change. /// you must persist it later.
/// ///
/// Returns whether anything changed with the transaction insertion (e.g. `false` if the /// Returns whether anything changed with the transaction insertion (e.g. `false` if the
/// transaction was already inserted at the same position). /// transaction was already inserted at the same position).
@ -1144,10 +1098,13 @@ impl Wallet {
/// Therefore you should use [`insert_checkpoint`] to insert new checkpoints before manually /// Therefore you should use [`insert_checkpoint`] to insert new checkpoints before manually
/// inserting new transactions. /// inserting new transactions.
/// ///
/// **WARNING:** If `position` is confirmed, we anchor the `tx` to a the lowest checkpoint that /// **WARNING**: If `position` is confirmed, we anchor the `tx` to the lowest checkpoint that
/// is >= the `position`'s height. The caller is responsible for ensuring the `tx` exists in our /// is >= the `position`'s height. The caller is responsible for ensuring the `tx` exists in our
/// local view of the best chain's history. /// local view of the best chain's history.
/// ///
/// You must persist the changes resulting from one or more calls to this method if you need
/// the inserted tx to be reloaded after closing the wallet.
///
/// [`commit`]: Self::commit /// [`commit`]: Self::commit
/// [`latest_checkpoint`]: Self::latest_checkpoint /// [`latest_checkpoint`]: Self::latest_checkpoint
/// [`insert_checkpoint`]: Self::insert_checkpoint /// [`insert_checkpoint`]: Self::insert_checkpoint
@ -1189,7 +1146,7 @@ impl Wallet {
} }
let changed = !changeset.is_empty(); let changed = !changeset.is_empty();
self.persist.stage(changeset); self.stage(changeset);
Ok(changed) Ok(changed)
} }
@ -1240,7 +1197,7 @@ impl Wallet {
/// # use bdk_wallet::bitcoin::Network; /// # use bdk_wallet::bitcoin::Network;
/// let descriptor = "wpkh(tprv8ZgxMBicQKsPe73PBRSmNbTfbcsZnwWhz5eVmhHpi31HW29Z7mc9B4cWGRQzopNUzZUT391DeDJxL2PefNunWyLgqCKRMDkU1s2s8bAfoSk/84'/1'/0'/0/*)"; /// let descriptor = "wpkh(tprv8ZgxMBicQKsPe73PBRSmNbTfbcsZnwWhz5eVmhHpi31HW29Z7mc9B4cWGRQzopNUzZUT391DeDJxL2PefNunWyLgqCKRMDkU1s2s8bAfoSk/84'/1'/0'/0/*)";
/// let change_descriptor = "wpkh(tprv8ZgxMBicQKsPe73PBRSmNbTfbcsZnwWhz5eVmhHpi31HW29Z7mc9B4cWGRQzopNUzZUT391DeDJxL2PefNunWyLgqCKRMDkU1s2s8bAfoSk/84'/1'/0'/1/*)"; /// let change_descriptor = "wpkh(tprv8ZgxMBicQKsPe73PBRSmNbTfbcsZnwWhz5eVmhHpi31HW29Z7mc9B4cWGRQzopNUzZUT391DeDJxL2PefNunWyLgqCKRMDkU1s2s8bAfoSk/84'/1'/0'/1/*)";
/// let wallet = Wallet::new_no_persist(descriptor, change_descriptor, Network::Testnet)?; /// let wallet = Wallet::new(descriptor, change_descriptor, Network::Testnet)?;
/// for secret_key in wallet.get_signers(KeychainKind::External).signers().iter().filter_map(|s| s.descriptor_secret_key()) { /// for secret_key in wallet.get_signers(KeychainKind::External).signers().iter().filter_map(|s| s.descriptor_secret_key()) {
/// // secret_key: tprv8ZgxMBicQKsPe73PBRSmNbTfbcsZnwWhz5eVmhHpi31HW29Z7mc9B4cWGRQzopNUzZUT391DeDJxL2PefNunWyLgqCKRMDkU1s2s8bAfoSk/84'/0'/0'/0/* /// // secret_key: tprv8ZgxMBicQKsPe73PBRSmNbTfbcsZnwWhz5eVmhHpi31HW29Z7mc9B4cWGRQzopNUzZUT391DeDJxL2PefNunWyLgqCKRMDkU1s2s8bAfoSk/84'/0'/0'/0/*
/// println!("secret_key: {}", secret_key); /// println!("secret_key: {}", secret_key);
@ -1267,7 +1224,6 @@ impl Wallet {
/// # use bdk_wallet::*; /// # use bdk_wallet::*;
/// # use bdk_wallet::wallet::ChangeSet; /// # use bdk_wallet::wallet::ChangeSet;
/// # use bdk_wallet::wallet::error::CreateTxError; /// # use bdk_wallet::wallet::error::CreateTxError;
/// # use bdk_persist::PersistBackend;
/// # use anyhow::Error; /// # use anyhow::Error;
/// # let descriptor = "wpkh(tpubD6NzVbkrYhZ4Xferm7Pz4VnjdcDPFyjVu5K4iZXQ4pVN8Cks4pHVowTBXBKRhX64pkRyJZJN5xAKj4UDNnLPb5p2sSKXhewoYx5GbTdUFWq/*)"; /// # let descriptor = "wpkh(tpubD6NzVbkrYhZ4Xferm7Pz4VnjdcDPFyjVu5K4iZXQ4pVN8Cks4pHVowTBXBKRhX64pkRyJZJN5xAKj4UDNnLPb5p2sSKXhewoYx5GbTdUFWq/*)";
/// # let mut wallet = doctest_wallet!(); /// # let mut wallet = doctest_wallet!();
@ -1514,11 +1470,9 @@ impl Wallet {
.next_unused_spk(&change_keychain) .next_unused_spk(&change_keychain)
.expect("keychain must exist"); .expect("keychain must exist");
self.indexed_graph.index.mark_used(change_keychain, index); self.indexed_graph.index.mark_used(change_keychain, index);
self.persist self.stage(ChangeSet::from(indexed_tx_graph::ChangeSet::from(
.stage(ChangeSet::from(indexed_tx_graph::ChangeSet::from( index_changeset,
index_changeset, )));
)));
self.persist.commit().map_err(CreateTxError::Persist)?;
spk spk
} }
}; };
@ -1617,7 +1571,6 @@ impl Wallet {
/// # use bdk_wallet::*; /// # use bdk_wallet::*;
/// # use bdk_wallet::wallet::ChangeSet; /// # use bdk_wallet::wallet::ChangeSet;
/// # use bdk_wallet::wallet::error::CreateTxError; /// # use bdk_wallet::wallet::error::CreateTxError;
/// # use bdk_persist::PersistBackend;
/// # use anyhow::Error; /// # use anyhow::Error;
/// # let descriptor = "wpkh(tpubD6NzVbkrYhZ4Xferm7Pz4VnjdcDPFyjVu5K4iZXQ4pVN8Cks4pHVowTBXBKRhX64pkRyJZJN5xAKj4UDNnLPb5p2sSKXhewoYx5GbTdUFWq/*)"; /// # let descriptor = "wpkh(tpubD6NzVbkrYhZ4Xferm7Pz4VnjdcDPFyjVu5K4iZXQ4pVN8Cks4pHVowTBXBKRhX64pkRyJZJN5xAKj4UDNnLPb5p2sSKXhewoYx5GbTdUFWq/*)";
/// # let mut wallet = doctest_wallet!(); /// # let mut wallet = doctest_wallet!();
@ -1796,7 +1749,6 @@ impl Wallet {
/// # use bdk_wallet::*; /// # use bdk_wallet::*;
/// # use bdk_wallet::wallet::ChangeSet; /// # use bdk_wallet::wallet::ChangeSet;
/// # use bdk_wallet::wallet::error::CreateTxError; /// # use bdk_wallet::wallet::error::CreateTxError;
/// # use bdk_persist::PersistBackend;
/// # let descriptor = "wpkh(tpubD6NzVbkrYhZ4Xferm7Pz4VnjdcDPFyjVu5K4iZXQ4pVN8Cks4pHVowTBXBKRhX64pkRyJZJN5xAKj4UDNnLPb5p2sSKXhewoYx5GbTdUFWq/*)"; /// # let descriptor = "wpkh(tpubD6NzVbkrYhZ4Xferm7Pz4VnjdcDPFyjVu5K4iZXQ4pVN8Cks4pHVowTBXBKRhX64pkRyJZJN5xAKj4UDNnLPb5p2sSKXhewoYx5GbTdUFWq/*)";
/// # let mut wallet = doctest_wallet!(); /// # let mut wallet = doctest_wallet!();
/// # let to_address = Address::from_str("2N4eQYCbKUHCCTUjBJeHcJp9ok6J2GZsTDt").unwrap().assume_checked(); /// # let to_address = Address::from_str("2N4eQYCbKUHCCTUjBJeHcJp9ok6J2GZsTDt").unwrap().assume_checked();
@ -2319,11 +2271,14 @@ impl Wallet {
.to_string() .to_string()
} }
/// Applies an update to the wallet and stages the changes (but does not [`commit`] them). /// Applies an update to the wallet and stages the changes (but does not persist them).
/// ///
/// Usually you create an `update` by interacting with some blockchain data source and inserting /// Usually you create an `update` by interacting with some blockchain data source and inserting
/// transactions related to your wallet into it. /// transactions related to your wallet into it.
/// ///
/// After applying updates you should persist the staged wallet changes. For an example of how
/// to persist staged wallet changes see [`Wallet::reveal_next_address`]. `
///
/// [`commit`]: Self::commit /// [`commit`]: Self::commit
pub fn apply_update(&mut self, update: impl Into<Update>) -> Result<(), CannotConnectError> { pub fn apply_update(&mut self, update: impl Into<Update>) -> Result<(), CannotConnectError> {
let update = update.into(); let update = update.into();
@ -2342,27 +2297,10 @@ impl Wallet {
changeset.append(ChangeSet::from( changeset.append(ChangeSet::from(
self.indexed_graph.apply_update(update.graph), self.indexed_graph.apply_update(update.graph),
)); ));
self.persist.stage(changeset); self.stage(changeset);
Ok(()) Ok(())
} }
/// Commits all currently [`staged`] changed to the persistence backend returning and error when
/// this fails.
///
/// This returns whether the `update` resulted in any changes.
///
/// [`staged`]: Self::staged
pub fn commit(&mut self) -> anyhow::Result<bool> {
self.persist.commit().map(|c| c.is_some())
}
/// Returns the changes that will be committed with the next call to [`commit`].
///
/// [`commit`]: Self::commit
pub fn staged(&self) -> &ChangeSet {
self.persist.staged()
}
/// Get a reference to the inner [`TxGraph`]. /// Get a reference to the inner [`TxGraph`].
pub fn tx_graph(&self) -> &TxGraph<ConfirmationTimeHeightAnchor> { pub fn tx_graph(&self) -> &TxGraph<ConfirmationTimeHeightAnchor> {
self.indexed_graph.graph() self.indexed_graph.graph()
@ -2411,6 +2349,10 @@ impl Wallet {
/// The `connected_to` parameter informs the wallet how this block connects to the internal /// The `connected_to` parameter informs the wallet how this block connects to the internal
/// [`LocalChain`]. Relevant transactions are filtered from the `block` and inserted into the /// [`LocalChain`]. Relevant transactions are filtered from the `block` and inserted into the
/// internal [`TxGraph`]. /// internal [`TxGraph`].
///
/// **WARNING**: You must persist the changes resulting from one or more calls to this method
/// if you need the inserted block data to be reloaded after closing the wallet.
/// See [`Wallet::reveal_next_address`].
pub fn apply_block_connected_to( pub fn apply_block_connected_to(
&mut self, &mut self,
block: &Block, block: &Block,
@ -2428,7 +2370,7 @@ impl Wallet {
.apply_block_relevant(block, height) .apply_block_relevant(block, height)
.into(), .into(),
); );
self.persist.stage(changeset); self.stage(changeset);
Ok(()) Ok(())
} }
@ -2440,6 +2382,10 @@ impl Wallet {
/// when the transaction was last seen in the mempool. This is used for conflict resolution /// when the transaction was last seen in the mempool. This is used for conflict resolution
/// when there is conflicting unconfirmed transactions. The transaction with the later /// when there is conflicting unconfirmed transactions. The transaction with the later
/// `last_seen` is prioritized. /// `last_seen` is prioritized.
///
/// **WARNING**: You must persist the changes resulting from one or more calls to this method
/// if you need the applied unconfirmed transactions to be reloaded after closing the wallet.
/// See [`Wallet::reveal_next_address`].
pub fn apply_unconfirmed_txs<'t>( pub fn apply_unconfirmed_txs<'t>(
&mut self, &mut self,
unconfirmed_txs: impl IntoIterator<Item = (&'t Transaction, u64)>, unconfirmed_txs: impl IntoIterator<Item = (&'t Transaction, u64)>,
@ -2447,7 +2393,7 @@ impl Wallet {
let indexed_graph_changeset = self let indexed_graph_changeset = self
.indexed_graph .indexed_graph
.batch_insert_relevant_unconfirmed(unconfirmed_txs); .batch_insert_relevant_unconfirmed(unconfirmed_txs);
self.persist.stage(ChangeSet::from(indexed_graph_changeset)); self.stage(ChangeSet::from(indexed_graph_changeset));
} }
} }
@ -2584,7 +2530,7 @@ macro_rules! doctest_wallet {
let descriptor = "tr([73c5da0a/86'/0'/0']tprv8fMn4hSKPRC1oaCPqxDb1JWtgkpeiQvZhsr8W2xuy3GEMkzoArcAWTfJxYb6Wj8XNNDWEjfYKK4wGQXh3ZUXhDF2NcnsALpWTeSwarJt7Vc/0/*)"; let descriptor = "tr([73c5da0a/86'/0'/0']tprv8fMn4hSKPRC1oaCPqxDb1JWtgkpeiQvZhsr8W2xuy3GEMkzoArcAWTfJxYb6Wj8XNNDWEjfYKK4wGQXh3ZUXhDF2NcnsALpWTeSwarJt7Vc/0/*)";
let change_descriptor = "tr([73c5da0a/86'/0'/0']tprv8fMn4hSKPRC1oaCPqxDb1JWtgkpeiQvZhsr8W2xuy3GEMkzoArcAWTfJxYb6Wj8XNNDWEjfYKK4wGQXh3ZUXhDF2NcnsALpWTeSwarJt7Vc/1/*)"; let change_descriptor = "tr([73c5da0a/86'/0'/0']tprv8fMn4hSKPRC1oaCPqxDb1JWtgkpeiQvZhsr8W2xuy3GEMkzoArcAWTfJxYb6Wj8XNNDWEjfYKK4wGQXh3ZUXhDF2NcnsALpWTeSwarJt7Vc/1/*)";
let mut wallet = Wallet::new_no_persist( let mut wallet = Wallet::new(
descriptor, descriptor,
change_descriptor, change_descriptor,
Network::Regtest, Network::Regtest,

2
crates/wallet/src/wallet/signer.rs
View File

@ -69,7 +69,7 @@
//! //!
//! let descriptor = "wpkh(tpubD6NzVbkrYhZ4Xferm7Pz4VnjdcDPFyjVu5K4iZXQ4pVN8Cks4pHVowTBXBKRhX64pkRyJZJN5xAKj4UDNnLPb5p2sSKXhewoYx5GbTdUFWq/0/*)"; //! let descriptor = "wpkh(tpubD6NzVbkrYhZ4Xferm7Pz4VnjdcDPFyjVu5K4iZXQ4pVN8Cks4pHVowTBXBKRhX64pkRyJZJN5xAKj4UDNnLPb5p2sSKXhewoYx5GbTdUFWq/0/*)";
//! let change_descriptor = "wpkh(tpubD6NzVbkrYhZ4Xferm7Pz4VnjdcDPFyjVu5K4iZXQ4pVN8Cks4pHVowTBXBKRhX64pkRyJZJN5xAKj4UDNnLPb5p2sSKXhewoYx5GbTdUFWq/1/*)"; //! let change_descriptor = "wpkh(tpubD6NzVbkrYhZ4Xferm7Pz4VnjdcDPFyjVu5K4iZXQ4pVN8Cks4pHVowTBXBKRhX64pkRyJZJN5xAKj4UDNnLPb5p2sSKXhewoYx5GbTdUFWq/1/*)";
//! let mut wallet = Wallet::new_no_persist(descriptor, change_descriptor, Network::Testnet)?; //! let mut wallet = Wallet::new(descriptor, change_descriptor, Network::Testnet)?;
//! wallet.add_signer( //! wallet.add_signer(
//! KeychainKind::External, //! KeychainKind::External,
//! SignerOrdering(200), //! SignerOrdering(200),

6
crates/wallet/src/wallet/tx_builder.rs
View File

@ -19,7 +19,6 @@
//! # use bdk_wallet::*; //! # use bdk_wallet::*;
//! # use bdk_wallet::wallet::ChangeSet; //! # use bdk_wallet::wallet::ChangeSet;
//! # use bdk_wallet::wallet::error::CreateTxError; //! # use bdk_wallet::wallet::error::CreateTxError;
//! # use bdk_persist::PersistBackend;
//! # use anyhow::Error; //! # use anyhow::Error;
//! # let to_address = Address::from_str("2N4eQYCbKUHCCTUjBJeHcJp9ok6J2GZsTDt").unwrap().assume_checked(); //! # let to_address = Address::from_str("2N4eQYCbKUHCCTUjBJeHcJp9ok6J2GZsTDt").unwrap().assume_checked();
//! # let mut wallet = doctest_wallet!(); //! # let mut wallet = doctest_wallet!();
@ -68,7 +67,6 @@ use crate::{KeychainKind, LocalOutput, Utxo, WeightedUtxo};
/// # use core::str::FromStr; /// # use core::str::FromStr;
/// # use bdk_wallet::wallet::ChangeSet; /// # use bdk_wallet::wallet::ChangeSet;
/// # use bdk_wallet::wallet::error::CreateTxError; /// # use bdk_wallet::wallet::error::CreateTxError;
/// # use bdk_persist::PersistBackend;
/// # use anyhow::Error; /// # use anyhow::Error;
/// # let mut wallet = doctest_wallet!(); /// # let mut wallet = doctest_wallet!();
/// # let addr1 = Address::from_str("2N4eQYCbKUHCCTUjBJeHcJp9ok6J2GZsTDt").unwrap().assume_checked(); /// # let addr1 = Address::from_str("2N4eQYCbKUHCCTUjBJeHcJp9ok6J2GZsTDt").unwrap().assume_checked();
@ -640,7 +638,6 @@ impl<'a, Cs> TxBuilder<'a, Cs> {
/// # use bdk_wallet::*; /// # use bdk_wallet::*;
/// # use bdk_wallet::wallet::ChangeSet; /// # use bdk_wallet::wallet::ChangeSet;
/// # use bdk_wallet::wallet::error::CreateTxError; /// # use bdk_wallet::wallet::error::CreateTxError;
/// # use bdk_persist::PersistBackend;
/// # use anyhow::Error; /// # use anyhow::Error;
/// # let to_address = /// # let to_address =
/// Address::from_str("2N4eQYCbKUHCCTUjBJeHcJp9ok6J2GZsTDt") /// Address::from_str("2N4eQYCbKUHCCTUjBJeHcJp9ok6J2GZsTDt")
@ -675,6 +672,9 @@ impl<'a, Cs: CoinSelectionAlgorithm> TxBuilder<'a, Cs> {
/// Returns a new [`Psbt`] per [`BIP174`]. /// Returns a new [`Psbt`] per [`BIP174`].
/// ///
/// [`BIP174`]: https://github.com/bitcoin/bips/blob/master/bip-0174.mediawiki /// [`BIP174`]: https://github.com/bitcoin/bips/blob/master/bip-0174.mediawiki
///
/// **WARNING**: To avoid change address reuse you must persist the changes resulting from one
/// or more calls to this method before closing the wallet. See [`Wallet::reveal_next_address`].
pub fn finish(self) -> Result<Psbt, CreateTxError> { pub fn finish(self) -> Result<Psbt, CreateTxError> {
self.wallet self.wallet
.borrow_mut() .borrow_mut()

2
crates/wallet/tests/common.rs
View File

@ -16,7 +16,7 @@ use std::str::FromStr;
/// to a foreign address and one returning 50_000 back to the wallet. The remaining 1000 /// to a foreign address and one returning 50_000 back to the wallet. The remaining 1000
/// sats are the transaction fee. /// sats are the transaction fee.
pub fn get_funded_wallet_with_change(descriptor: &str, change: &str) -> (Wallet, bitcoin::Txid) { pub fn get_funded_wallet_with_change(descriptor: &str, change: &str) -> (Wallet, bitcoin::Txid) {
let mut wallet = Wallet::new_no_persist(descriptor, change, Network::Regtest).unwrap(); let mut wallet = Wallet::new(descriptor, change, Network::Regtest).unwrap();
let receive_address = wallet.peek_address(KeychainKind::External, 0).address; let receive_address = wallet.peek_address(KeychainKind::External, 0).address;
let sendto_address = Address::from_str("bcrt1q3qtze4ys45tgdvguj66zrk4fu6hq3a3v9pfly5") let sendto_address = Address::from_str("bcrt1q3qtze4ys45tgdvguj66zrk4fu6hq3a3v9pfly5")
.expect("address") .expect("address")

320
crates/wallet/tests/wallet.rs
View File

File diff suppressed because it is too large Load Diff

13
example-crates/example_bitcoind_rpc_polling/src/main.rs
View File

@ -11,6 +11,7 @@ use bdk_bitcoind_rpc::{
bitcoincore_rpc::{Auth, Client, RpcApi}, bitcoincore_rpc::{Auth, Client, RpcApi},
Emitter, Emitter,
}; };
use bdk_chain::persist::PersistBackend;
use bdk_chain::{ use bdk_chain::{
bitcoin::{constants::genesis_block, Block, Transaction}, bitcoin::{constants::genesis_block, Block, Transaction},
indexed_tx_graph, keychain, indexed_tx_graph, keychain,
@ -137,8 +138,7 @@ fn main() -> anyhow::Result<()> {
let genesis_hash = genesis_block(args.network).block_hash(); let genesis_hash = genesis_block(args.network).block_hash();
let (chain, chain_changeset) = LocalChain::from_genesis_hash(genesis_hash); let (chain, chain_changeset) = LocalChain::from_genesis_hash(genesis_hash);
let mut db = db.lock().unwrap(); let mut db = db.lock().unwrap();
db.stage((chain_changeset, Default::default())); db.write_changes(&(chain_changeset, Default::default()))?;
db.commit()?;
chain chain
} else { } else {
LocalChain::from_changeset(init_chain_changeset)? LocalChain::from_changeset(init_chain_changeset)?
@ -191,12 +191,11 @@ fn main() -> anyhow::Result<()> {
.apply_update(emission.checkpoint) .apply_update(emission.checkpoint)
.expect("must always apply as we receive blocks in order from emitter"); .expect("must always apply as we receive blocks in order from emitter");
let graph_changeset = graph.apply_block_relevant(&emission.block, height); let graph_changeset = graph.apply_block_relevant(&emission.block, height);
db.stage((chain_changeset, graph_changeset)); db.write_changes(&(chain_changeset, graph_changeset))?;
// commit staged db changes in intervals // commit staged db changes in intervals
if last_db_commit.elapsed() >= DB_COMMIT_DELAY { if last_db_commit.elapsed() >= DB_COMMIT_DELAY {
last_db_commit = Instant::now(); last_db_commit = Instant::now();
db.commit()?;
println!( println!(
"[{:>10}s] committed to db (took {}s)", "[{:>10}s] committed to db (took {}s)",
start.elapsed().as_secs_f32(), start.elapsed().as_secs_f32(),
@ -232,8 +231,7 @@ fn main() -> anyhow::Result<()> {
); );
{ {
let mut db = db.lock().unwrap(); let mut db = db.lock().unwrap();
db.stage((local_chain::ChangeSet::default(), graph_changeset)); db.write_changes(&(local_chain::ChangeSet::default(), graph_changeset))?;
db.commit()?; // commit one last time
} }
} }
RpcCommands::Live { rpc_args } => { RpcCommands::Live { rpc_args } => {
@ -317,11 +315,10 @@ fn main() -> anyhow::Result<()> {
} }
}; };
db.stage(changeset); db.write_changes(&changeset)?;
if last_db_commit.elapsed() >= DB_COMMIT_DELAY { if last_db_commit.elapsed() >= DB_COMMIT_DELAY {
last_db_commit = Instant::now(); last_db_commit = Instant::now();
db.commit()?;
println!( println!(
"[{:>10}s] committed to db (took {}s)", "[{:>10}s] committed to db (took {}s)",
start.elapsed().as_secs_f32(), start.elapsed().as_secs_f32(),

1
example-crates/example_cli/Cargo.toml
View File

@ -7,7 +7,6 @@ edition = "2021"
[dependencies] [dependencies]
bdk_chain = { path = "../../crates/chain", features = ["serde", "miniscript"]} bdk_chain = { path = "../../crates/chain", features = ["serde", "miniscript"]}
bdk_persist = { path = "../../crates/persist" }
bdk_file_store = { path = "../../crates/file_store" } bdk_file_store = { path = "../../crates/file_store" }
bdk_tmp_plan = { path = "../../nursery/tmp_plan" } bdk_tmp_plan = { path = "../../nursery/tmp_plan" }
bdk_coin_select = { path = "../../nursery/coin_select" } bdk_coin_select = { path = "../../nursery/coin_select" }

32
example-crates/example_cli/src/lib.rs
View File

@ -3,6 +3,7 @@ use anyhow::Context;
use bdk_coin_select::{coin_select_bnb, CoinSelector, CoinSelectorOpt, WeightedValue}; use bdk_coin_select::{coin_select_bnb, CoinSelector, CoinSelectorOpt, WeightedValue};
use bdk_file_store::Store; use bdk_file_store::Store;
use serde::{de::DeserializeOwned, Serialize}; use serde::{de::DeserializeOwned, Serialize};
use std::fmt::Debug;
use std::{cmp::Reverse, collections::BTreeMap, path::PathBuf, sync::Mutex, time::Duration}; use std::{cmp::Reverse, collections::BTreeMap, path::PathBuf, sync::Mutex, time::Duration};
use bdk_chain::{ use bdk_chain::{
@ -22,9 +23,9 @@ use bdk_chain::{
Anchor, Append, ChainOracle, DescriptorExt, FullTxOut, Anchor, Append, ChainOracle, DescriptorExt, FullTxOut,
}; };
pub use bdk_file_store; pub use bdk_file_store;
use bdk_persist::{Persist, PersistBackend};
pub use clap; pub use clap;
use bdk_chain::persist::PersistBackend;
use clap::{Parser, Subcommand}; use clap::{Parser, Subcommand};
pub type KeychainTxGraph<A> = IndexedTxGraph<A, KeychainTxOutIndex<Keychain>>; pub type KeychainTxGraph<A> = IndexedTxGraph<A, KeychainTxOutIndex<Keychain>>;
@ -446,7 +447,7 @@ pub fn planned_utxos<A: Anchor, O: ChainOracle, K: Clone + bdk_tmp_plan::CanDeri
pub fn handle_commands<CS: clap::Subcommand, S: clap::Args, A: Anchor, O: ChainOracle, C>( pub fn handle_commands<CS: clap::Subcommand, S: clap::Args, A: Anchor, O: ChainOracle, C>(
graph: &Mutex<KeychainTxGraph<A>>, graph: &Mutex<KeychainTxGraph<A>>,
db: &Mutex<Persist<C>>, db: &Mutex<Store<C>>,
chain: &Mutex<O>, chain: &Mutex<O>,
keymap: &BTreeMap<DescriptorPublicKey, DescriptorSecretKey>, keymap: &BTreeMap<DescriptorPublicKey, DescriptorSecretKey>,
network: Network, network: Network,
@ -455,7 +456,14 @@ pub fn handle_commands<CS: clap::Subcommand, S: clap::Args, A: Anchor, O: ChainO
) -> anyhow::Result<()> ) -> anyhow::Result<()>
where where
O::Error: std::error::Error + Send + Sync + 'static, O::Error: std::error::Error + Send + Sync + 'static,
C: Default + Append + DeserializeOwned + Serialize + From<KeychainChangeSet<A>>, C: Default
+ Append
+ DeserializeOwned
+ Serialize
+ From<KeychainChangeSet<A>>
+ Send
+ Sync
+ Debug,
{ {
match cmd { match cmd {
Commands::ChainSpecific(_) => unreachable!("example code should handle this!"), Commands::ChainSpecific(_) => unreachable!("example code should handle this!"),
@ -474,7 +482,7 @@ where
let ((spk_i, spk), index_changeset) = let ((spk_i, spk), index_changeset) =
spk_chooser(index, &Keychain::External).expect("Must exist"); spk_chooser(index, &Keychain::External).expect("Must exist");
let db = &mut *db.lock().unwrap(); let db = &mut *db.lock().unwrap();
db.stage_and_commit(C::from(( db.write_changes(&C::from((
local_chain::ChangeSet::default(), local_chain::ChangeSet::default(),
indexed_tx_graph::ChangeSet::from(index_changeset), indexed_tx_graph::ChangeSet::from(index_changeset),
)))?; )))?;
@ -622,7 +630,7 @@ where
// If we're unable to persist this, then we don't want to broadcast. // If we're unable to persist this, then we don't want to broadcast.
{ {
let db = &mut *db.lock().unwrap(); let db = &mut *db.lock().unwrap();
db.stage_and_commit(C::from(( db.write_changes(&C::from((
local_chain::ChangeSet::default(), local_chain::ChangeSet::default(),
indexed_tx_graph::ChangeSet::from(index_changeset), indexed_tx_graph::ChangeSet::from(index_changeset),
)))?; )))?;
@ -647,7 +655,7 @@ where
// We know the tx is at least unconfirmed now. Note if persisting here fails, // We know the tx is at least unconfirmed now. Note if persisting here fails,
// it's not a big deal since we can always find it again form // it's not a big deal since we can always find it again form
// blockchain. // blockchain.
db.lock().unwrap().stage_and_commit(C::from(( db.lock().unwrap().write_changes(&C::from((
local_chain::ChangeSet::default(), local_chain::ChangeSet::default(),
keychain_changeset, keychain_changeset,
)))?; )))?;
@ -666,7 +674,10 @@ where
} }
/// The initial state returned by [`init`]. /// The initial state returned by [`init`].
pub struct Init<CS: clap::Subcommand, S: clap::Args, C> { pub struct Init<CS: clap::Subcommand, S: clap::Args, C>
where
C: Default + Append + Serialize + DeserializeOwned + Debug + Send + Sync + 'static,
{
/// Arguments parsed by the cli. /// Arguments parsed by the cli.
pub args: Args<CS, S>, pub args: Args<CS, S>,
/// Descriptor keymap. /// Descriptor keymap.
@ -674,7 +685,7 @@ pub struct Init<CS: clap::Subcommand, S: clap::Args, C> {
/// Keychain-txout index. /// Keychain-txout index.
pub index: KeychainTxOutIndex<Keychain>, pub index: KeychainTxOutIndex<Keychain>,
/// Persistence backend. /// Persistence backend.
pub db: Mutex<Persist<C>>, pub db: Mutex<Store<C>>,
/// Initial changeset. /// Initial changeset.
pub init_changeset: C, pub init_changeset: C,
} }
@ -690,6 +701,7 @@ where
+ Append + Append
+ Serialize + Serialize
+ DeserializeOwned + DeserializeOwned
+ Debug
+ core::marker::Send + core::marker::Send
+ core::marker::Sync + core::marker::Sync
+ 'static, + 'static,
@ -724,13 +736,13 @@ where
Err(err) => return Err(anyhow::anyhow!("failed to init db backend: {:?}", err)), Err(err) => return Err(anyhow::anyhow!("failed to init db backend: {:?}", err)),
}; };
let init_changeset = db_backend.load_from_persistence()?.unwrap_or_default(); let init_changeset = db_backend.load_changes()?.unwrap_or_default();
Ok(Init { Ok(Init {
args, args,
keymap, keymap,
index, index,
db: Mutex::new(Persist::new(db_backend)), db: Mutex::new(db_backend),
init_changeset, init_changeset,
}) })
} }

4
example-crates/example_electrum/src/main.rs
View File

@ -3,6 +3,7 @@ use std::{
sync::Mutex, sync::Mutex,
}; };
use bdk_chain::persist::PersistBackend;
use bdk_chain::{ use bdk_chain::{
bitcoin::{constants::genesis_block, Address, Network, Txid}, bitcoin::{constants::genesis_block, Address, Network, Txid},
collections::BTreeSet, collections::BTreeSet,
@ -351,7 +352,6 @@ fn main() -> anyhow::Result<()> {
}; };
let mut db = db.lock().unwrap(); let mut db = db.lock().unwrap();
db.stage(db_changeset); db.write_changes(&db_changeset)?;
db.commit()?;
Ok(()) Ok(())
} }

4
example-crates/example_esplora/src/main.rs
View File

@ -4,6 +4,7 @@ use std::{
sync::Mutex, sync::Mutex,
}; };
use bdk_chain::persist::PersistBackend;
use bdk_chain::{ use bdk_chain::{
bitcoin::{constants::genesis_block, Address, Network, Txid}, bitcoin::{constants::genesis_block, Address, Network, Txid},
indexed_tx_graph::{self, IndexedTxGraph}, indexed_tx_graph::{self, IndexedTxGraph},
@ -361,7 +362,6 @@ fn main() -> anyhow::Result<()> {
// We persist the changes // We persist the changes
let mut db = db.lock().unwrap(); let mut db = db.lock().unwrap();
db.stage((local_chain_changeset, indexed_tx_graph_changeset)); db.write_changes(&(local_chain_changeset, indexed_tx_graph_changeset))?;
db.commit()?;
Ok(()) Ok(())
} }

15
example-crates/wallet_electrum/src/main.rs
View File

@ -3,6 +3,7 @@ const SEND_AMOUNT: Amount = Amount::from_sat(5000);
const STOP_GAP: usize = 50; const STOP_GAP: usize = 50;
const BATCH_SIZE: usize = 5; const BATCH_SIZE: usize = 5;
use anyhow::anyhow;
use std::io::Write; use std::io::Write;
use std::str::FromStr; use std::str::FromStr;
@ -11,24 +12,28 @@ use bdk_electrum::BdkElectrumClient;
use bdk_file_store::Store; use bdk_file_store::Store;
use bdk_wallet::bitcoin::{Address, Amount}; use bdk_wallet::bitcoin::{Address, Amount};
use bdk_wallet::chain::collections::HashSet; use bdk_wallet::chain::collections::HashSet;
use bdk_wallet::chain::persist::PersistBackend;
use bdk_wallet::{bitcoin::Network, Wallet}; use bdk_wallet::{bitcoin::Network, Wallet};
use bdk_wallet::{KeychainKind, SignOptions}; use bdk_wallet::{KeychainKind, SignOptions};
fn main() -> Result<(), anyhow::Error> { fn main() -> Result<(), anyhow::Error> {
let db_path = std::env::temp_dir().join("bdk-electrum-example"); let db_path = std::env::temp_dir().join("bdk-electrum-example");
let db = let mut db =
Store::<bdk_wallet::wallet::ChangeSet>::open_or_create_new(DB_MAGIC.as_bytes(), db_path)?; Store::<bdk_wallet::wallet::ChangeSet>::open_or_create_new(DB_MAGIC.as_bytes(), db_path)?;
let external_descriptor = "wpkh(tprv8ZgxMBicQKsPdy6LMhUtFHAgpocR8GC6QmwMSFpZs7h6Eziw3SpThFfczTDh5rW2krkqffa11UpX3XkeTTB2FvzZKWXqPY54Y6Rq4AQ5R8L/84'/1'/0'/0/*)"; let external_descriptor = "wpkh(tprv8ZgxMBicQKsPdy6LMhUtFHAgpocR8GC6QmwMSFpZs7h6Eziw3SpThFfczTDh5rW2krkqffa11UpX3XkeTTB2FvzZKWXqPY54Y6Rq4AQ5R8L/84'/1'/0'/0/*)";
let internal_descriptor = "wpkh(tprv8ZgxMBicQKsPdy6LMhUtFHAgpocR8GC6QmwMSFpZs7h6Eziw3SpThFfczTDh5rW2krkqffa11UpX3XkeTTB2FvzZKWXqPY54Y6Rq4AQ5R8L/84'/1'/0'/1/*)"; let internal_descriptor = "wpkh(tprv8ZgxMBicQKsPdy6LMhUtFHAgpocR8GC6QmwMSFpZs7h6Eziw3SpThFfczTDh5rW2krkqffa11UpX3XkeTTB2FvzZKWXqPY54Y6Rq4AQ5R8L/84'/1'/0'/1/*)";
let changeset = db
.load_changes()
.map_err(|e| anyhow!("load changes error: {}", e))?;
let mut wallet = Wallet::new_or_load( let mut wallet = Wallet::new_or_load(
external_descriptor, external_descriptor,
internal_descriptor, internal_descriptor,
db, changeset,
Network::Testnet, Network::Testnet,
)?; )?;
let address = wallet.next_unused_address(KeychainKind::External)?; let address = wallet.next_unused_address(KeychainKind::External);
db.write_changes(&wallet.take_staged())?;
println!("Generated Address: {}", address); println!("Generated Address: {}", address);
let balance = wallet.balance(); let balance = wallet.balance();
@ -67,7 +72,7 @@ fn main() -> Result<(), anyhow::Error> {
println!(); println!();
wallet.apply_update(update)?; wallet.apply_update(update)?;
wallet.commit()?; db.write_changes(&wallet.take_staged())?;
let balance = wallet.balance(); let balance = wallet.balance();
println!("Wallet balance after syncing: {} sats", balance.total()); println!("Wallet balance after syncing: {} sats", balance.total());

11
example-crates/wallet_esplora_async/src/main.rs
View File

@ -7,6 +7,7 @@ use bdk_wallet::{
}; };
use bdk_sqlite::{rusqlite::Connection, Store}; use bdk_sqlite::{rusqlite::Connection, Store};
use bdk_wallet::chain::persist::PersistBackend;
const SEND_AMOUNT: Amount = Amount::from_sat(5000); const SEND_AMOUNT: Amount = Amount::from_sat(5000);
const STOP_GAP: usize = 50; const STOP_GAP: usize = 50;
@ -16,18 +17,20 @@ const PARALLEL_REQUESTS: usize = 5;
async fn main() -> Result<(), anyhow::Error> { async fn main() -> Result<(), anyhow::Error> {
let db_path = "bdk-esplora-async-example.sqlite"; let db_path = "bdk-esplora-async-example.sqlite";
let conn = Connection::open(db_path)?; let conn = Connection::open(db_path)?;
let db = Store::new(conn)?; let mut db = Store::new(conn)?;
let external_descriptor = "wpkh(tprv8ZgxMBicQKsPdy6LMhUtFHAgpocR8GC6QmwMSFpZs7h6Eziw3SpThFfczTDh5rW2krkqffa11UpX3XkeTTB2FvzZKWXqPY54Y6Rq4AQ5R8L/84'/1'/0'/0/*)"; let external_descriptor = "wpkh(tprv8ZgxMBicQKsPdy6LMhUtFHAgpocR8GC6QmwMSFpZs7h6Eziw3SpThFfczTDh5rW2krkqffa11UpX3XkeTTB2FvzZKWXqPY54Y6Rq4AQ5R8L/84'/1'/0'/0/*)";
let internal_descriptor = "wpkh(tprv8ZgxMBicQKsPdy6LMhUtFHAgpocR8GC6QmwMSFpZs7h6Eziw3SpThFfczTDh5rW2krkqffa11UpX3XkeTTB2FvzZKWXqPY54Y6Rq4AQ5R8L/84'/1'/0'/1/*)"; let internal_descriptor = "wpkh(tprv8ZgxMBicQKsPdy6LMhUtFHAgpocR8GC6QmwMSFpZs7h6Eziw3SpThFfczTDh5rW2krkqffa11UpX3XkeTTB2FvzZKWXqPY54Y6Rq4AQ5R8L/84'/1'/0'/1/*)";
let changeset = db.load_changes()?;
let mut wallet = Wallet::new_or_load( let mut wallet = Wallet::new_or_load(
external_descriptor, external_descriptor,
internal_descriptor, internal_descriptor,
db, changeset,
Network::Signet, Network::Signet,
)?; )?;
let address = wallet.next_unused_address(KeychainKind::External)?; let address = wallet.next_unused_address(KeychainKind::External);
db.write_changes(&wallet.take_staged())?;
println!("Generated Address: {}", address); println!("Generated Address: {}", address);
let balance = wallet.balance(); let balance = wallet.balance();
@ -75,7 +78,7 @@ async fn main() -> Result<(), anyhow::Error> {
let _ = update.graph_update.update_last_seen_unconfirmed(now); let _ = update.graph_update.update_last_seen_unconfirmed(now);
wallet.apply_update(update)?; wallet.apply_update(update)?;
wallet.commit()?; db.write_changes(&wallet.take_staged())?;
println!(); println!();
let balance = wallet.balance(); let balance = wallet.balance();

11
example-crates/wallet_esplora_blocking/src/main.rs
View File

@ -7,6 +7,7 @@ use std::{collections::BTreeSet, io::Write, str::FromStr};
use bdk_esplora::{esplora_client, EsploraExt}; use bdk_esplora::{esplora_client, EsploraExt};
use bdk_file_store::Store; use bdk_file_store::Store;
use bdk_wallet::chain::persist::PersistBackend;
use bdk_wallet::{ use bdk_wallet::{
bitcoin::{Address, Amount, Network}, bitcoin::{Address, Amount, Network},
KeychainKind, SignOptions, Wallet, KeychainKind, SignOptions, Wallet,
@ -14,19 +15,21 @@ use bdk_wallet::{
fn main() -> Result<(), anyhow::Error> { fn main() -> Result<(), anyhow::Error> {
let db_path = std::env::temp_dir().join("bdk-esplora-example"); let db_path = std::env::temp_dir().join("bdk-esplora-example");
let db = let mut db =
Store::<bdk_wallet::wallet::ChangeSet>::open_or_create_new(DB_MAGIC.as_bytes(), db_path)?; Store::<bdk_wallet::wallet::ChangeSet>::open_or_create_new(DB_MAGIC.as_bytes(), db_path)?;
let external_descriptor = "wpkh(tprv8ZgxMBicQKsPdy6LMhUtFHAgpocR8GC6QmwMSFpZs7h6Eziw3SpThFfczTDh5rW2krkqffa11UpX3XkeTTB2FvzZKWXqPY54Y6Rq4AQ5R8L/84'/1'/0'/0/*)"; let external_descriptor = "wpkh(tprv8ZgxMBicQKsPdy6LMhUtFHAgpocR8GC6QmwMSFpZs7h6Eziw3SpThFfczTDh5rW2krkqffa11UpX3XkeTTB2FvzZKWXqPY54Y6Rq4AQ5R8L/84'/1'/0'/0/*)";
let internal_descriptor = "wpkh(tprv8ZgxMBicQKsPdy6LMhUtFHAgpocR8GC6QmwMSFpZs7h6Eziw3SpThFfczTDh5rW2krkqffa11UpX3XkeTTB2FvzZKWXqPY54Y6Rq4AQ5R8L/84'/1'/0'/1/*)"; let internal_descriptor = "wpkh(tprv8ZgxMBicQKsPdy6LMhUtFHAgpocR8GC6QmwMSFpZs7h6Eziw3SpThFfczTDh5rW2krkqffa11UpX3XkeTTB2FvzZKWXqPY54Y6Rq4AQ5R8L/84'/1'/0'/1/*)";
let changeset = db.load_changes()?;
let mut wallet = Wallet::new_or_load( let mut wallet = Wallet::new_or_load(
external_descriptor, external_descriptor,
internal_descriptor, internal_descriptor,
db, changeset,
Network::Testnet, Network::Testnet,
)?; )?;
let address = wallet.next_unused_address(KeychainKind::External)?; let address = wallet.next_unused_address(KeychainKind::External);
db.write_changes(&wallet.take_staged())?;
println!("Generated Address: {}", address); println!("Generated Address: {}", address);
let balance = wallet.balance(); let balance = wallet.balance();
@ -52,7 +55,7 @@ fn main() -> Result<(), anyhow::Error> {
let _ = update.graph_update.update_last_seen_unconfirmed(now); let _ = update.graph_update.update_last_seen_unconfirmed(now);
wallet.apply_update(update)?; wallet.apply_update(update)?;
wallet.commit()?; db.write_changes(&wallet.take_staged())?;
println!(); println!();
let balance = wallet.balance(); let balance = wallet.balance();

16
example-crates/wallet_rpc/src/main.rs
View File

@ -3,6 +3,7 @@ use bdk_bitcoind_rpc::{
Emitter, Emitter,
}; };
use bdk_file_store::Store; use bdk_file_store::Store;
use bdk_wallet::chain::persist::PersistBackend;
use bdk_wallet::{ use bdk_wallet::{
bitcoin::{Block, Network, Transaction}, bitcoin::{Block, Network, Transaction},
wallet::Wallet, wallet::Wallet,
@ -86,13 +87,16 @@ fn main() -> anyhow::Result<()> {
); );
let start_load_wallet = Instant::now(); let start_load_wallet = Instant::now();
let mut db = Store::<bdk_wallet::wallet::ChangeSet>::open_or_create_new(
DB_MAGIC.as_bytes(),
args.db_path,
)?;
let changeset = db.load_changes()?;
let mut wallet = Wallet::new_or_load( let mut wallet = Wallet::new_or_load(
&args.descriptor, &args.descriptor,
&args.change_descriptor, &args.change_descriptor,
Store::<bdk_wallet::wallet::ChangeSet>::open_or_create_new( changeset,
DB_MAGIC.as_bytes(),
args.db_path,
)?,
args.network, args.network,
)?; )?;
println!( println!(
@ -143,7 +147,7 @@ fn main() -> anyhow::Result<()> {
let connected_to = block_emission.connected_to(); let connected_to = block_emission.connected_to();
let start_apply_block = Instant::now(); let start_apply_block = Instant::now();
wallet.apply_block_connected_to(&block_emission.block, height, connected_to)?; wallet.apply_block_connected_to(&block_emission.block, height, connected_to)?;
wallet.commit()?; db.write_changes(&wallet.take_staged())?;
let elapsed = start_apply_block.elapsed().as_secs_f32(); let elapsed = start_apply_block.elapsed().as_secs_f32();
println!( println!(
"Applied block {} at height {} in {}s", "Applied block {} at height {} in {}s",
@ -153,7 +157,7 @@ fn main() -> anyhow::Result<()> {
Emission::Mempool(mempool_emission) => { Emission::Mempool(mempool_emission) => {
let start_apply_mempool = Instant::now(); let start_apply_mempool = Instant::now();
wallet.apply_unconfirmed_txs(mempool_emission.iter().map(|(tx, time)| (tx, *time))); wallet.apply_unconfirmed_txs(mempool_emission.iter().map(|(tx, time)| (tx, *time)));
wallet.commit()?; db.write_changes(&wallet.take_staged())?;
println!( println!(
"Applied unconfirmed transactions in {}s", "Applied unconfirmed transactions in {}s",
start_apply_mempool.elapsed().as_secs_f32() start_apply_mempool.elapsed().as_secs_f32()