Configure electrum client to retry 5 times

CHANGELOG.md

@@ -18,7 +18,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   See issue https://github.com/comit-network/xmr-btc-swap/issues/652.
 - An issue where swap protocol was getting stuck trying to submit the cancel transaction.
   We were not handling the error when TxCancel submission fails.
-  See issues: https://github.com/comit-network/xmr-btc-swap/issues/709, https://github.com/comit-network/xmr-btc-swap/issues/688, https://github.com/comit-network/xmr-btc-swap/issues/701.
+  We also configured the electrum client to retry 5 times in order to help with this problem.
+  See issues: https://github.com/comit-network/xmr-btc-swap/issues/709 https://github.com/comit-network/xmr-btc-swap/issues/688, https://github.com/comit-network/xmr-btc-swap/issues/701.
 
 ## [0.8.1] - 2021-08-16
 

swap/src/bitcoin/wallet.rs

@@ -48,7 +48,10 @@ impl Wallet {
         env_config: env::Config,
         target_block: usize,
     ) -> Result<Self> {
-        let client = bdk::electrum_client::Client::new(electrum_rpc_url.as_str())
+        let config = bdk::electrum_client::ConfigBuilder::default()
+            .retry(5)
+            .build();
+        let client = bdk::electrum_client::Client::from_config(electrum_rpc_url.as_str(), config)
             .context("Failed to initialize Electrum RPC client")?;
 
         let db = bdk::sled::open(wallet_dir)?.open_tree(SLED_TREE_NAME)?;