add failing test case

examples/express/__integration-tests__/express.spec.ts

@@ -2,17 +2,15 @@ import { buildApp } from '../src/app.js'
 import request from 'supertest'
 import express from 'express'
 
-function getTests(app: Express.Application) {
+function getTests(app: Express.Application, endpoint = '/graphql') {
   it('should show GraphiQL', async () => {
-    const response = await request(app)
-      .get('/graphql')
-      .set('Accept', 'text/html')
+    const response = await request(app).get(endpoint).set('Accept', 'text/html')
     expect(response.statusCode).toBe(200)
     expect(response.headers['content-type']).toContain('text/html')
   })
   it('should handle POST requests', async () => {
     const response = await request(app)
-      .post('/graphql')
+      .post(endpoint)
       .send({ query: '{ hello }' })
     expect(response.statusCode).toBe(200)
     expect(response.body).toStrictEqual({
@@ -23,7 +21,7 @@ function getTests(app: Express.Application) {
   })
   it('should handle file uploads', async () => {
     const response = await request(app)
-      .post('/graphql')
+      .post(endpoint)
       .field(
         'operations',
         JSON.stringify({
@@ -60,3 +58,10 @@ describe('express + body parser', () => {
 
   getTests(app)
 })
+
+describe('express + custom endpoint', () => {
+  const app = express()
+  buildApp(app, '/api/graphql/v1')
+
+  getTests(app, '/api/graphql/v1')
+})

examples/express/src/app.ts

@@ -1,7 +1,10 @@
 import { createYoga, createSchema } from 'graphql-yoga'
 import express from 'express'
 
-export function buildApp(app: ReturnType<typeof express>) {
+export function buildApp(
+  app: ReturnType<typeof express>,
+  endpoint = '/graphql',
+) {
   const graphQLServer = createYoga({
     schema: createSchema({
       typeDefs: /* GraphQL */ `
@@ -38,7 +41,7 @@ export function buildApp(app: ReturnType<typeof express>) {
     logging: false,
   })
 
-  app.use('/graphql', graphQLServer)
+  app.use(endpoint, graphQLServer)
 
   return app
 }