From 2e7ff25b94006c4e0e6f2ecdc823c97b1c9df084 Mon Sep 17 00:00:00 2001
From: teor <teor@riseup.net>
Date: Mon, 14 Mar 2022 11:22:00 +1000
Subject: [PATCH] Implement ReadState Request::Transaction

---
 zebra-state/src/service.rs | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/zebra-state/src/service.rs b/zebra-state/src/service.rs
index dd295064a87..9deb3c4ed15 100644
--- a/zebra-state/src/service.rs
+++ b/zebra-state/src/service.rs
@@ -937,7 +937,7 @@ impl Service<Request> for ReadStateService {
             }
 
             // For the get_raw_transaction RPC, to be implemented in #3145.
-            Request::Transaction(_hash) => {
+            Request::Transaction(hash) => {
                 metrics::counter!(
                     "state.requests",
                     1,
@@ -945,7 +945,16 @@ impl Service<Request> for ReadStateService {
                     "type" => "transaction",
                 );
 
-                unimplemented!("ReadStateService doesn't Transaction yet")
+                let state = self.clone();
+
+                async move {
+                    let transaction = state.best_chain_receiver.with_watch_data(|best_chain| {
+                        read::transaction(best_chain, &state.db, hash)
+                    });
+
+                    Ok(Response::Transaction(transaction))
+                }
+                .boxed()
             }
 
             // TODO: split the Request enum, then implement these new ReadRequests for lightwalletd