From 6148c7ce15b4de619cb82aeb4f195ce936ad2eac Mon Sep 17 00:00:00 2001
From: Nikolay Volf <nikvolf@gmail.com>
Date: Thu, 6 Feb 2020 13:07:52 +0100
Subject: [PATCH] do join_all (#4832)

---
 substrate/client/transaction-pool/graph/src/pool.rs | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/substrate/client/transaction-pool/graph/src/pool.rs b/substrate/client/transaction-pool/graph/src/pool.rs
index 815b5871ea..91ce58518a 100644
--- a/substrate/client/transaction-pool/graph/src/pool.rs
+++ b/substrate/client/transaction-pool/graph/src/pool.rs
@@ -378,8 +378,13 @@ impl<B: ChainApi> Pool<B> {
 		let block_number = self.resolve_block_number(at)?;
 		let mut result = HashMap::new();
 
-		for xt in xts {
-			let (hash, validated_tx) = self.verify_one(at, block_number, xt, force).await;
+		for (hash, validated_tx) in
+			futures::future::join_all(
+				xts.into_iter()
+					.map(|xt| self.verify_one(at, block_number, xt, force))
+			)
+			.await
+		{
 			result.insert(hash, validated_tx);
 		}