From 0926b1e6f4aa27d5840a63fc35f051f2489486c9 Mon Sep 17 00:00:00 2001
From: Delweng <delweng@gmail.com>
Date: Wed, 9 Aug 2023 23:57:57 +0800
Subject: [PATCH] graphql: add yParity field for transactions (#27882)

Co-authored-by: Felix Lange <fjl@twurst.com>
---
 graphql/graphql.go | 10 ++++++++++
 graphql/schema.go  |  1 +
 2 files changed, 11 insertions(+)

diff --git a/graphql/graphql.go b/graphql/graphql.go
index b407ab425f184..7aa427b458bf7 100644
--- a/graphql/graphql.go
+++ b/graphql/graphql.go
@@ -566,6 +566,16 @@ func (t *Transaction) V(ctx context.Context) hexutil.Big {
 	return hexutil.Big(*v)
 }
 
+func (t *Transaction) YParity(ctx context.Context) (*hexutil.Uint64, error) {
+	tx, _ := t.resolve(ctx)
+	if tx == nil || tx.Type() == types.LegacyTxType {
+		return nil, nil
+	}
+	v, _, _ := tx.RawSignatureValues()
+	ret := hexutil.Uint64(v.Int64())
+	return &ret, nil
+}
+
 func (t *Transaction) Raw(ctx context.Context) (hexutil.Bytes, error) {
 	tx, _ := t.resolve(ctx)
 	if tx == nil {
diff --git a/graphql/schema.go b/graphql/schema.go
index a4eeb47daddfc..5de5bad305e85 100644
--- a/graphql/schema.go
+++ b/graphql/schema.go
@@ -151,6 +151,7 @@ const schema string = `
         r: BigInt!
         s: BigInt!
         v: BigInt!
+        yParity: Long
         # Envelope transaction support
         type: Long
         accessList: [AccessTuple!]