feat: simplify NextAuth instantiation (#911)

Author: balazsorban44

README.md

@@ -68,7 +68,7 @@ Alternatively you can raise a PR directly with your fixes on [**DefinitelyTyped*
 import NextAuth from 'next-auth'
 import Providers from 'next-auth/providers'
 
-const options = {
+export default NextAuth({
   providers: [
     // OAuth authentication providers
     Providers.Apple({
@@ -87,9 +87,7 @@ const options = {
   ],
   // SQL or MongoDB database (or leave empty)
   database: process.env.DATABASE_URL
-}
-
-export default (req, res) => NextAuth(req, res, options)
+})
 ```
 
 ### Add React Component

src/server/index.js

@@ -21,7 +21,7 @@ if (!process.env.NEXTAUTH_URL) {
   logger.warn('NEXTAUTH_URL', 'NEXTAUTH_URL environment variable not set')
 }
 
-export default async (req, res, userSuppliedOptions) => {
+async function NextAuth (req, res, userSuppliedOptions) {
   // To the best of my knowledge, we need to return a promise here
   // to avoid early termination of calls to the serverless function
   // (and then return that promise when we are done) - eslint
@@ -313,3 +313,11 @@ export default async (req, res, userSuppliedOptions) => {
     }
   })
 }
+
+export default async (...args) => {
+  if (args.length === 1) {
+    return (req, res) => NextAuth(req, res, args[0])
+  }
+
+  return NextAuth(...args)
+}

www/docs/getting-started/example.md

@@ -21,7 +21,7 @@ To add NextAuth.js to a project create a file called `[...nextauth].js` in `page
 import NextAuth from 'next-auth'
 import Providers from 'next-auth/providers'
 
-const options = {
+export default NextAuth({
   // Configure one or more authentication providers
   providers: [
     Providers.GitHub({
@@ -33,9 +33,7 @@ const options = {
 
   // A database is optional, but required to persist accounts in a database
   database: process.env.DATABASE_URL,
-}
-
-export default (req, res) => NextAuth(req, res, options)
+})
 ```
 
 All requests to `/api/auth/*` (signin, callback, signout, etc) will automatically be handed by NextAuth.js.

www/docs/schemas/adapters.md

@@ -74,17 +74,15 @@ import { PrismaClient } from '@prisma/client'
 
 const prisma = new PrismaClient()
 
-const options = {
+export default NextAuth({
   providers: [
     Providers.Google({
       clientId: process.env.GOOGLE_CLIENT_ID,
       clientSecret: process.env.GOOGLE_CLIENT_SECRET
     })
   ],
   adapter: Adapters.Prisma.Adapter({ prisma }),
-}
-
-export default (req, res) => NextAuth(req, res, options)
+})
 ```
 
 :::tip

www/docs/tutorials/ldap-auth.md

@@ -14,7 +14,7 @@ const ldap = require("ldapjs");
 import NextAuth from "next-auth";
 import Providers from "next-auth/providers";
 
-const options = {
+export default NextAuth({
   providers: [
     Providers.Credentials({
       name: "LDAP",
@@ -64,9 +64,7 @@ const options = {
     secret: process.env.NEXTAUTH_SECRET,
     encryption: true, // Very important to encrypt the JWT, otherwise you're leaking username+password into the browser
   },
-};
-
-export default (req, res) => NextAuth(req, res, options);
+});
 ```
 
 The idea is that once one is authenticated with the LDAP server, one can pass through both the username/DN and password to the JWT stored in the browser. 

www/docs/tutorials/typeorm-custom-models.md

@@ -62,7 +62,7 @@ import Adapters from "next-auth/adapters"
 
 import Models from "../../../models"
 
-const options = {
+export default NextAuth({
   providers: [
     // Your providers
   ],
@@ -77,9 +77,7 @@ const options = {
       },
     }
   ),
-}
-
-export default (req, res) => NextAuth(req, res, options)
+})
 ```
 
 

www/src/pages/index.js

@@ -219,7 +219,7 @@ const serverlessFunctionCode = `
 import NextAuth from 'next-auth'
 import Providers from 'next-auth/providers'
 
-const options = {
+export default NextAuth({
   providers: [
     // OAuth authentication providers...
     Providers.Apple({
@@ -242,9 +242,7 @@ const options = {
   ],
   // Optional SQL or MongoDB database to persist users
   database: process.env.DATABASE_URL
-}
-
-export default (req, res) => NextAuth(req, res, options)
+})
 `.trim()
 
 export default Home