From 862f8e98bce89889de22e2d32bf37f823127a32c Mon Sep 17 00:00:00 2001
From: Sina Mahmoodi <1591639+s1na@users.noreply.github.com>
Date: Tue, 22 Feb 2022 10:45:11 +0100
Subject: [PATCH] graphql: fix nonce for pending accounts (#24443)

---
 graphql/graphql.go | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/graphql/graphql.go b/graphql/graphql.go
index 16e0eb654d..44cee273a5 100644
--- a/graphql/graphql.go
+++ b/graphql/graphql.go
@@ -100,6 +100,14 @@ func (a *Account) Balance(ctx context.Context) (hexutil.Big, error) {
 }
 
 func (a *Account) TransactionCount(ctx context.Context) (hexutil.Uint64, error) {
+	// Ask transaction pool for the nonce which includes pending transactions
+	if blockNr, ok := a.blockNrOrHash.Number(); ok && blockNr == rpc.PendingBlockNumber {
+		nonce, err := a.backend.GetPoolNonce(ctx, a.address)
+		if err != nil {
+			return 0, err
+		}
+		return hexutil.Uint64(nonce), nil
+	}
 	state, err := a.getState(ctx)
 	if err != nil {
 		return 0, err