fix custom server threads env variables to next server

test/_community/payload-types.ts

@@ -336,4 +336,4 @@ export interface Auth {
 declare module 'payload' {
   // @ts-ignore 
   export interface GeneratedTypes extends Config {}
-}
+}

test/dev.ts

@@ -1,20 +1,21 @@
+import { updateInitialEnv } from '@next/env'
 import chalk from 'chalk'
-import { createServer } from 'http'
 import minimist from 'minimist'
-import nextImport from 'next'
+import { nextDev } from 'next/dist/cli/next-dev.js'
 import fs from 'node:fs'
 import path from 'node:path'
 import { fileURLToPath } from 'node:url'
 import open from 'open'
 import { loadEnv } from 'payload/node'
-import { parse } from 'url'
 
 import { getNextRootDir } from './helpers/getNextRootDir.js'
 import startMemoryDB from './helpers/startMemoryDB.js'
 import { runInit } from './runInit.js'
 import { child, safelyRunScriptFunction } from './safelyRunScript.js'
 import { createTestHooks } from './testHooks.js'
 
+process.env.PAYLOAD_DROP_DATABASE = process.env.PAYLOAD_DROP_DATABASE === 'false' ? 'false' : 'true'
+
 const prod = process.argv.includes('--prod')
 if (prod) {
   process.argv = process.argv.filter((arg) => arg !== '--prod')
@@ -65,31 +66,12 @@ if (args.o) {
 
 const port = process.env.PORT ? Number(process.env.PORT) : 3000
 
-// @ts-expect-error the same as in test/helpers/initPayloadE2E.ts
-const app = nextImport({
-  dev: true,
-  hostname: 'localhost',
-  port,
-  dir: rootDir,
-})
-
-const handle = app.getRequestHandler()
-
-let resolveServer
+// This is needed to forward the environment variables to the next process that were created in dev.ts directly
+// for example process.env.MONGODB_MEMORY_SERVER_URI process.env.PAYLOAD_DROP_DATABASE
+// Otherwise nextDev won't have them
+updateInitialEnv(process.env)
 
-const serverPromise = new Promise((res) => (resolveServer = res))
-
-void app.prepare().then(() => {
-  createServer(async (req, res) => {
-    const parsedUrl = parse(req.url, true)
-    await handle(req, res, parsedUrl)
-  }).listen(port, () => {
-    resolveServer()
-  })
-})
-
-await serverPromise
-process.env.PAYLOAD_DROP_DATABASE = process.env.PAYLOAD_DROP_DATABASE === 'false' ? 'false' : 'true'
+await nextDev({ port, disableSourceMaps: true }, 'default', rootDir)
 
 // fetch the admin url to force a render
 void fetch(`http://localhost:${port}${adminRoute}`)

test/package.json

@@ -23,6 +23,7 @@
   },
   "devDependencies": {
     "@aws-sdk/client-s3": "^3.614.0",
+    "@next/env": "15.1.3",
     "@payloadcms/db-mongodb": "workspace:*",
     "@payloadcms/db-postgres": "workspace:*",
     "@payloadcms/db-sqlite": "workspace:*",