From cef6d697b8b9e2490ab78dd367d7f9fdfc2a52d0 Mon Sep 17 00:00:00 2001
From: Liu-Cheng Xu <xuliuchengxlc@gmail.com>
Date: Fri, 21 May 2021 18:45:34 +0800
Subject: [PATCH] Expose the rpc client in Client (#267)

When we build a `Client` for a substrate chain, we can only access the
methods exposed in `Client` which does not cover all the RPC interfaces
in the chain, it's not feasible to request the methods like `chain_getKeys`
with `Client` only. The downstream user of this library has to build another
`RpcClient` for the uncovered RPC interfaces, which can be unneccessary.
---
 src/lib.rs | 5 +++++
 src/rpc.rs | 3 ++-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/lib.rs b/src/lib.rs
index 170800f589..a8b8f6936c 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -353,6 +353,11 @@ impl<T: Runtime> Client<T> {
         &self.properties
     }
 
+    /// Returns the rpc client.
+    pub fn rpc_client(&self) -> &RpcClient {
+        &self.rpc.client
+    }
+
     /// Fetch the value under an unhashed storage key
     pub async fn fetch_unhashed<V: Decode>(
         &self,
diff --git a/src/rpc.rs b/src/rpc.rs
index 75c67b22d5..22b8e7e310 100644
--- a/src/rpc.rs
+++ b/src/rpc.rs
@@ -258,7 +258,8 @@ pub struct ReadProof<Hash> {
 
 /// Client for substrate rpc interfaces
 pub struct Rpc<T: Runtime> {
-    client: RpcClient,
+    /// Rpc client for sending requests.
+    pub client: RpcClient,
     marker: PhantomData<T>,
     accept_weak_inclusion: bool,
 }