fix client spec

Author: g11tech

packages/client/src/rpc/error-code.ts

@@ -7,6 +7,7 @@ export const INVALID_PARAMS = -32602
 export const INTERNAL_ERROR = -32603
 export const TOO_LARGE_REQUEST = -38004
 export const UNSUPPORTED_FORK = -38005
+export const UNKNOWN_PAYLOAD = -32001
 
 export const validEngineCodes = [
   PARSE_ERROR,
@@ -16,4 +17,5 @@ export const validEngineCodes = [
   INTERNAL_ERROR,
   TOO_LARGE_REQUEST,
   UNSUPPORTED_FORK,
+  UNKNOWN_PAYLOAD,
 ]

packages/client/src/rpc/modules/engine.ts

@@ -17,6 +17,7 @@ import {
   INTERNAL_ERROR,
   INVALID_PARAMS,
   TOO_LARGE_REQUEST,
+  UNKNOWN_PAYLOAD,
   UNSUPPORTED_FORK,
   validEngineCodes,
 } from '../error-code'
@@ -110,7 +111,7 @@ type ExecutionPayloadBodyV1 = {
 
 const EngineError = {
   UnknownPayload: {
-    code: -32001,
+    code: UNKNOWN_PAYLOAD,
     message: 'Unknown payload',
   },
 }