HTLC broadcast working

side-node/src/bitcoin/client.rs

@@ -1,7 +1,7 @@
 use std::fs;
 
 use bdk::{
-    bitcoin::{psbt::PartiallySignedTransaction, Network, Transaction},
+    bitcoin::{psbt::PartiallySignedTransaction, secp256k1::PublicKey, Network, Transaction},
     blockchain::EsploraBlockchain,
     database::MemoryDatabase,
     keys::{bip39::Mnemonic, DerivableKey, ExtendedKey},
@@ -17,6 +17,7 @@ pub struct BitcoinClient {
     pub(crate) blockchain: bdk::blockchain::EsploraBlockchain,
     name: String,
     pub(crate) wallet: Wallet<MemoryDatabase>,
+    pub(crate) external_public_key: PublicKey,
 }
 
 impl BitcoinClient {
@@ -91,22 +92,27 @@ impl BitcoinClient {
             .into_xprv(Network::Signet)
             .expect("couldn't turn xkey into xprv");
 
-        let external_descriptor = Bip84(xprv, KeychainKind::External);
+        let secp = bdk::bitcoin::secp256k1::Secp256k1::new();
+
+        let external_descriptor1 = Bip84(xprv.clone(), KeychainKind::External);
+        let external_descriptor2 = Bip84(xprv, KeychainKind::External);
         let internal_descriptor = Some(Bip84(xprv, KeychainKind::Internal));
 
         let wallet = Wallet::new(
-            external_descriptor,
+            external_descriptor1,
             internal_descriptor,
             network,
             MemoryDatabase::default(),
         )?;
 
         let blockchain = EsploraBlockchain::new("https://mutinynet.com/api", 20);
+        let external_public_key = external_descriptor2.0.private_key.public_key(&secp);
 
         let esplora = BitcoinClient {
             name: name.to_string(),
             wallet,
             blockchain,
+            external_public_key,
         };
 
         Ok(esplora)