028caa9f8cd51afba0fdc81748fc8cf536c75cd0 fix(typos): existant -> existent (Jose Storopoli) Pull request description: ### Description These typos are blocking the Nix typo CI in #1257 ### Notes to the reviewers Blocking #1257 ### Changelog notice - fix: typos in documentation - ### Checklists #### All Submissions: * [x] I've signed all my commits * [x] I followed the [contribution guidelines](https://github.com/bitcoindevkit/bdk/blob/master/CONTRIBUTING.md) * [x] I ran `cargo fmt` and `cargo clippy` before committing #### New Features: * [ ] I've added tests for the new feature * [ ] I've added docs for the new feature #### Bugfixes: * [ ] This pull request breaks the existing API * [ ] I've added tests to reproduce the issue which are now passing * [ ] I'm linking the issue being fixed by this PR ACKs for top commit: notmandatory: ACK 028caa9f8cd51afba0fdc81748fc8cf536c75cd0 Tree-SHA512: 0bd91efd0eec55fdc537824435552c968858a5b827179b3f9f3f37785db3fa92d3e6f0c73023de0c506224c81217c402d5afa8a2f768fecaf6a3c8378226d184
BDK

A modern, lightweight, descriptor-based wallet library written in Rust!
Project Homepage | Documentation
bdk
The bdk
crate provides the Wallet
type which is a simple, high-level
interface built from the low-level components of bdk_chain
. Wallet
is a good starting point
for many simple applications as well as a good demonstration of how to use the other mechanisms to
construct a wallet. It has two keychains (external and internal) which are defined by
miniscript descriptors and uses them to generate addresses. When you give it
chain data it also uses the descriptors to find transaction outputs owned by them. From there, you
can create and sign transactions.
For more information, see the Wallet
's documentation.
Blockchain data
In order to get blockchain data for Wallet
to consume, you have to put it into particular form.
Right now this is KeychainScan
which is defined in bdk_chain
.
This can be created manually or from blockchain-scanning crates.
Blockchain Data Sources
bdk_esplora
: Grabs blockchain data from Esplora for updating BDK structures.bdk_electrum
: Grabs blockchain data from Electrum for updating BDK structures.
Examples
Persistence
To persist the Wallet
on disk, Wallet
needs to be constructed with a
Persist
implementation.
Implementations
bdk_file_store
: a simple flat-file implementation ofPersist
.
Example
use bdk::{bitcoin::Network, wallet::{AddressIndex, Wallet}};
fn main() {
// a type that implements `Persist`
let db = ();
let descriptor = "wpkh(tprv8ZgxMBicQKsPdy6LMhUtFHAgpocR8GC6QmwMSFpZs7h6Eziw3SpThFfczTDh5rW2krkqffa11UpX3XkeTTB2FvzZKWXqPY54Y6Rq4AQ5R8L/84'/0'/0'/0/*)";
let mut wallet = Wallet::new(descriptor, None, db, Network::Testnet).expect("should create");
// get a new address (this increments revealed derivation index)
println!("revealed address: {}", wallet.get_address(AddressIndex::New));
println!("staged changes: {:?}", wallet.staged());
// persist changes
wallet.commit().expect("must save");
}
Testing
Unit testing
cargo test
License
Licensed under either of
- Apache License, Version 2.0, (LICENSE-APACHE or https://www.apache.org/licenses/LICENSE-2.0)
- MIT license (LICENSE-MIT or https://opensource.org/licenses/MIT)
at your option.
Contribution
Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.