fix netlify graphql function (#3721)

Author: dimaMachina

functions/graphql.ts

@@ -11,6 +11,7 @@ import type {
 } from '@netlify/functions';
 
 import schema from '../packages/graphiql/test/schema';
+import { customExecute } from '../packages/graphiql/test/execute';
 
 /**
  * Handler options when using the netlify adapter
@@ -48,13 +49,12 @@ export function createHandler<Context extends OperationContext = undefined>(
       // The handler shouldn't throw errors.
       // If you wish to handle them differently, consider implementing your own request handler.
       console.error(
-        'Internal error occurred during request handling. ' +
-          'Please check your implementation.',
+        'Internal error occurred during request handling. Please check your implementation.',
         err,
       );
       return { statusCode: 500 };
     }
   };
 }
 
-export const handler = createHandler({ schema });
+export const handler = createHandler({ schema, execute: customExecute });

packages/graphiql/test/e2e-server.js

@@ -9,40 +9,16 @@
 const { createServer } = require('node:http');
 const express = require('express');
 const path = require('node:path');
-const {
-  execute,
-  experimentalExecuteIncrementally,
-  version,
-} = require('graphql');
-const schema = require('./schema');
-const app = express();
 const {
   getGraphQLParameters,
   processRequest,
   sendResult,
 } = require('graphql-helix'); // update when `graphql-http` is upgraded to support multipart requests for incremental delivery https://github.com/graphql/graphiql/pull/3682#discussion_r1715545279
 const WebSocketsServer = require('./afterDevServer');
+const schema = require('./schema');
+const { customExecute } = require('./execute');
 
-const customExecute =
-  parseInt(version, 10) > 16
-    ? async (...args) => {
-        const result = await experimentalExecuteIncrementally(...args);
-
-        if (!('subsequentResults' in result)) {
-          return result;
-        }
-
-        const { initialResult, subsequentResults } = result;
-        if (typeof subsequentResults[Symbol.asyncIterator] !== 'function') {
-          return result;
-        }
-
-        return (async function* () {
-          yield initialResult;
-          yield* subsequentResults;
-        })();
-      }
-    : execute;
+const app = express();
 
 async function handler(req, res) {
   const request = {

packages/graphiql/test/execute.js

@@ -0,0 +1,28 @@
+const {
+  execute,
+  experimentalExecuteIncrementally,
+  version,
+} = require('graphql');
+
+const customExecute =
+  parseInt(version, 10) > 16
+    ? async (...args) => {
+        const result = await experimentalExecuteIncrementally(...args);
+
+        if (!('subsequentResults' in result)) {
+          return result;
+        }
+
+        const { initialResult, subsequentResults } = result;
+        if (typeof subsequentResults[Symbol.asyncIterator] !== 'function') {
+          return result;
+        }
+
+        return (async function* () {
+          yield initialResult;
+          yield* subsequentResults;
+        })();
+      }
+    : execute;
+
+module.exports = { customExecute };