Merge pull request #18 from notmandatory/allow-listing-transactions

Allow listing confirmed transactions

src/bdk.udl

@@ -63,6 +63,15 @@ interface DatabaseConfig {
   Sled(SledDbConfiguration config);
 };
 
+dictionary ConfirmedTransaction {
+    u64? fees;
+    u32 height;
+    u64 timestamp;
+    u64 received;
+    u64 sent;
+    string id;
+};
+
 interface OfflineWallet {
   [Throws=BdkError]
   constructor(string descriptor, Network network, DatabaseConfig database_config);
@@ -73,6 +82,8 @@ interface OfflineWallet {
   u64 get_balance();
   [Throws=BdkError]
   void sign([ByRef] PartiallySignedBitcoinTransaction psbt);
+  [Throws=BdkError]
+  sequence<ConfirmedTransaction> get_transactions();
 };
 
 dictionary ElectrumConfig {
@@ -111,6 +122,8 @@ interface OnlineWallet {
   u64 get_balance();
   [Throws=BdkError]
   void sign([ByRef] PartiallySignedBitcoinTransaction psbt);
+  [Throws=BdkError]
+  sequence<ConfirmedTransaction> get_transactions();
 
   // OnlineWalletInterface
   Network get_network();

src/lib.rs

@@ -57,6 +57,16 @@ impl WalletHolder<()> for OfflineWallet {
     }
 }
 
+#[derive(Debug, Clone, PartialEq, Eq, Default)]
+pub struct ConfirmedTransaction {
+    pub fees: Option<u64>,
+    pub height: u32,
+    pub timestamp: u64,
+    pub received: u64,
+    pub sent: u64,
+    pub id: String,
+}
+
 trait OfflineWalletOperations<B>: WalletHolder<B> {
     fn get_new_address(&self) -> String {
         self.get_wallet()
@@ -81,6 +91,22 @@ trait OfflineWalletOperations<B>: WalletHolder<B> {
             ))),
         }
     }
+
+    fn get_transactions(&self) -> Result<Vec<ConfirmedTransaction>, Error> {
+        let transactions = self.get_wallet().list_transactions(true)?;
+        Ok(transactions
+            .iter()
+            .filter(|x| x.confirmation_time.is_some())
+            .map(|x| ConfirmedTransaction {
+                fees: x.fee,
+                height: x.confirmation_time.clone().map_or(0, |c| c.height),
+                timestamp: x.confirmation_time.clone().map_or(0, |c| c.timestamp),
+                id: x.txid.to_string(),
+                received: x.received,
+                sent: x.sent,
+            })
+            .collect())
+    }
 }
 
 impl OfflineWallet {