From 44d8c7093a9717a4dcc618b83dbc1814cac16342 Mon Sep 17 00:00:00 2001
From: Gregory Hill <gregorydhill@outlook.com>
Date: Mon, 21 Aug 2023 16:02:43 +0100
Subject: [PATCH] chore: implement dump_private_key for light client

Signed-off-by: Gregory Hill <gregorydhill@outlook.com>
---
 bitcoin/src/light/mod.rs | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/bitcoin/src/light/mod.rs b/bitcoin/src/light/mod.rs
index e4a906649..66f20231e 100644
--- a/bitcoin/src/light/mod.rs
+++ b/bitcoin/src/light/mod.rs
@@ -172,8 +172,14 @@ impl BitcoinCoreApi for BitcoinLight {
         Ok(self.private_key.public_key(&self.secp_ctx))
     }
 
-    fn dump_private_key(&self, _: &Address) -> Result<PrivateKey, BitcoinError> {
-        Err(Error::InvalidAddress.into())
+    fn dump_private_key(&self, address: &Address) -> Result<PrivateKey, BitcoinError> {
+        self.wallet
+            .key_store
+            .read()
+            .map_err(Into::<Error>::into)?
+            .get(address)
+            .ok_or(Error::NoPrivateKey.into())
+            .cloned()
     }
 
     fn import_private_key(&self, _private_key: &PrivateKey, _is_derivation_key: bool) -> Result<(), BitcoinError> {