feat(electrum): add custom authentication support via ConfigBuilder

crates/electrum/src/bdk_electrum_client.rs

@@ -603,6 +603,20 @@ impl<E: ElectrumApi> BdkElectrumClient<E> {
     }
 }
 
+/// Creates a new BDK Electrum client from a URL with custom configuration.
+/// can be used as a convenience method for creating an Electrum client with custom settings
+/// such as JWT authorization providers, timeouts, or proxy settings.
+impl BdkElectrumClient<electrum_client::Client> {
+    /// [`electrum_client::ConfigBuilder`]: crate::electrum_client::ConfigBuilder
+    pub fn from_config(
+        url: &str,
+        config: electrum_client::Config,
+    ) -> Result<Self, electrum_client::Error> {
+        let client = electrum_client::Client::from_config(url, config)?;
+        Ok(Self::new(client))
+    }
+}
+
 /// Return a [`CheckPoint`] of the latest tip, that connects with `prev_tip`. The latest blocks are
 /// fetched to construct checkpoint updates with the proper [`BlockHash`] in case of re-org.
 fn fetch_tip_and_latest_blocks(

crates/electrum/src/lib.rs

@@ -16,6 +16,7 @@
 //! [`example_electrum`]: https://github.com/bitcoindevkit/bdk/tree/master/examples/example_electrum
 //! [`SyncResponse`]: bdk_core::spk_client::SyncResponse
 //! [`FullScanResponse`]: bdk_core::spk_client::FullScanResponse
+//! [`AuthProvider`]: electrum_client::config::AuthProvider
 #![cfg_attr(coverage_nightly, feature(coverage_attribute))]
 #![warn(missing_docs)]
 
@@ -24,3 +25,5 @@ pub use bdk_electrum_client::*;
 
 pub use bdk_core;
 pub use electrum_client;
+
+pub use electrum_client::{Config, ConfigBuilder};