chore: bump version

* fix: include `utils` in package

* fix: import `InternalUrl` as type

* `"emitDeclarationOnly": false`

* don't ignore `types.ts` in build

.github/workflows/release.yml

@@ -69,7 +69,7 @@ jobs:
           git config --global user.name "Balázs Orbán"
           pnpm release
         env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GITHUB_TOKEN: ${{ secrets.RELEASE_TOKEN }}
           NPM_TOKEN_PKG: ${{ secrets.NPM_TOKEN_PKG }}
           NPM_TOKEN_ORG: ${{ secrets.NPM_TOKEN_ORG }}
   release-pr:
@@ -103,7 +103,7 @@ jobs:
           echo "//registry.npmjs.org/:_authToken=$NPM_TOKEN" >> .npmrc
           pnpm publish --no-git-checks --access public --tag experimental
         env:
-          NPM_TOKEN: ${{ secrets.NPM_TOKEN }}
+          NPM_TOKEN: ${{ secrets.NPM_TOKEN_PKG }}
       - name: Comment version on PR
         uses: NejcZdovc/comment-pr@v1
         with:

.gitignore

@@ -30,7 +30,7 @@ packages/next-auth/providers
 packages/next-auth/src/providers/oauth-types.ts
 packages/next-auth/client
 packages/next-auth/css
-packages/next-auth/lib
+packages/next-auth/utils
 packages/next-auth/core
 packages/next-auth/jwt
 packages/next-auth/react

apps/dev/pages/protected-ssr.js

@@ -1,5 +1,5 @@
 // This is an example of how to protect content using server rendering
-import { getServerSession } from "next-auth/next"
+import { unstable_getServerSession } from "next-auth/next"
 import { authOptions } from "./api/auth/[...nextauth]"
 import Layout from "../components/layout"
 import AccessDenied from "../components/access-denied"
@@ -26,7 +26,11 @@ export default function Page({ content, session }) {
 }
 
 export async function getServerSideProps(context) {
-  const session = await getServerSession(context, authOptions)
+  const session = await unstable_getServerSession(
+    context.req,
+    context.res,
+    authOptions
+  )
   let content = null
 
   if (session) {

apps/example-gatsby/README.md

@@ -65,7 +65,6 @@ You **can** skip configuring a database and come back to it later if you want.
 For more information about setting up a database, please check out the following links:
 
 * Docs: [next-auth.js.org/adapters/overview](https://next-auth.js.org/adapters/overview)
-* Adapters Repo: [nextauthjs/adapters](https://github.com/nextauthjs/adapters)
 
 ### 3. Configure Authentication Providers
 

apps/example-nextjs/README.md

@@ -68,7 +68,6 @@ You **can** skip configuring a database and come back to it later if you want.
 For more information about setting up a database, please check out the following links:
 
 * Docs: [next-auth.js.org/adapters/overview](https://next-auth.js.org/adapters/overview)
-* Adapters Repo: [nextauthjs/adapters](https://github.com/nextauthjs/adapters)
 
 ### 3. Configure Authentication Providers
 

apps/playground-sveltekit/package.json

@@ -30,7 +30,7 @@
   "type": "module",
   "dependencies": {
     "cookie": "0.4.1",
-    "next-auth": "^4.3.3"
+    "next-auth": "^4.5.0"
   },
   "prettier": {
     "semi": false,

apps/playground-sveltekit/src/lib/next-auth.ts

@@ -65,7 +65,7 @@ async function SKNextAuthHandler(
     query: Object.fromEntries(url.searchParams),
     headers: request.headers,
     method: request.method,
-    cookies: cookie.parse(request.headers.get("cookie")),
+    cookies: cookie.parse(request.headers.get("cookie") ?? ""),
     action: nextauth[0] as NextAuthAction,
     providerId: nextauth[1],
     error: nextauth[1],
@@ -91,7 +91,7 @@ export async function getServerSession(
       host: import.meta.env.VITE_NEXTAUTH_URL,
       action: "session",
       method: "GET",
-      cookies: cookie.parse(request.headers.get("cookie")),
+      cookies: cookie.parse(request.headers.get("cookie") ?? ""),
       headers: request.headers,
     },
     options,

apps/playground-sveltekit/yarn.lock

@@ -1232,10 +1232,10 @@ natural-compare@^1.4.0:
   resolved "https://registry.yarnpkg.com/natural-compare/-/natural-compare-1.4.0.tgz#4abebfeed7541f2c27acfb29bdbbd15c8d5ba4f7"
   integrity sha1-Sr6/7tdUHywnrPspvbvRXI1bpPc=
 
-next-auth@^4.3.3:
-  version "4.3.3"
-  resolved "https://registry.yarnpkg.com/next-auth/-/next-auth-4.3.3.tgz#5ff892e73648a0f33c2af0e9d7cafda729f63ae7"
-  integrity sha512-bUs+oOOPT18Pq/+4v9q4PA/DGoVoAX6jwY7RTfE/akFXwlny+y/mNS6lPSUwpqcHjljqBaq34PQA3+01SdOOPw==
+next-auth@^4.5.0:
+  version "4.5.0"
+  resolved "https://registry.yarnpkg.com/next-auth/-/next-auth-4.5.0.tgz#2df57287fddc705b8971c88c60bad44a89ac6dd1"
+  integrity sha512-B6gYRIbqtj8nlDsx3y2Ruwp/mvZnItPs7VUULY43QYw+M9xtDPIM9EBZ3ryd/wNYA3MDteBJlzGm/ivseXcmJA==
   dependencies:
     "@babel/runtime" "^7.16.3"
     "@panva/hkdf" "^1.0.1"

docs/docs/configuration/nextjs.md

@@ -1,5 +1,73 @@
 # Next.js
 
+## `unstable_getServerSession`
+
+:::warning
+This feature is experimental and may be removed or changed in the future.
+:::
+
+When calling from server-side i.e. in API routes or in `getServerSideProps`, we recommend using this function instead of `getSession` to retrieve the `session` object. This method is especially useful when you are using NextAuth.js with a database. This method can _drastically_ reduce response time when used over `getSession` server-side, due to avoiding an extra `fetch` to an API Route (this is generally [not recommended in Next.js](https://nextjs.org/docs/basic-features/data-fetching/get-server-side-props#getserversideprops-or-api-routes)). In addition, `unstable_getServerSession` will correctly update the cookie expiry time and update the session content if `callbacks.jwt` or `callbacks.session` changed something.
+
+Otherwise, if you only want to get the session token, see [`getToken`](tutorials/securing-pages-and-api-routes#using-gettoken).
+
+`unstable_getServerSession` requires passing the same object you would pass to `NextAuth` when initializing NextAuth.js. To do so, you can export your NextAuth.js options in the following way:
+
+In `[...nextauth.js]`:
+```ts
+import { NextAuth } from 'next-auth'
+import type { NextAuthOptions } from 'next-auth'
+ 
+export const authOptions: NextAuthOptions = {
+  // your configs
+}
+
+export default NextAuth(authOptions);
+```
+
+In `getServerSideProps`:
+```js
+import { authOptions } from 'pages/api/[...nextauth]'
+import { unstable_getServerSession } from "next-auth/next"
+
+export async function getServerSideProps(context) {
+  const session = await unstable_getServerSession(context.req, context.res, authOptions)
+
+  if (!session) {
+    return {
+      redirect: {
+        destination: '/',
+        permanent: false,
+      },
+    }
+  }
+
+  return {
+    props: {
+      session,
+    },
+  }
+}
+```
+In API routes:
+```js
+import { authOptions } from 'pages/api/[...nextauth]'
+import { unstable_getServerSession } from "next-auth/next"
+
+
+export async function handler(req, res) {
+  const session = await unstable_getServerSession(req, res, authOptions)
+
+  if (!session) {
+    res.status(401).json({ message: "You must be logged in." });
+    return;
+  }
+
+  return res.json({
+    message: 'Success',
+  })
+}
+```
+
 ## Middleware
 
 You can use a Next.js Middleware with NextAuth.js to protect your site.

docs/docs/providers/github.md

@@ -30,8 +30,8 @@ import GitHubProvider from "next-auth/providers/github";
 ...
 providers: [
   GitHubProvider({
-    clientId: process.env.GITHUB_CLIENT_ID,
-    clientSecret: process.env.GITHUB_CLIENT_SECRET
+    clientId: process.env.GITHUB_ID,
+    clientSecret: process.env.GITHUB_SECRET
   })
 ]
 ...

docs/docs/providers/slack.md

@@ -13,7 +13,7 @@ https://api.slack.com/docs/sign-in-with-slack
 https://api.slack.com/apps
 
 :::warning
-Slack requires you that the redirect URL of your app uses `https`, even for local development. An easy workaround for this is using a service like [`ngrok`](https://ngrok.com) that creates a secure tunnel to your app, using `https`. Remember to set the url as `NEXTAUTH_URL` as well.
+Slack requires that the redirect URL of your app uses `https`, even for local development. An easy workaround for this is using a service like [`ngrok`](https://ngrok.com) that creates a secure tunnel to your app, using `https`. Remember to set the url as `NEXTAUTH_URL` as well.
 :::
 
 ![](https://i.imgur.com/ydYKTLD.png)

docs/docs/providers/workos.md

@@ -15,7 +15,7 @@ https://dashboard.workos.com
 
 The **WorkOS Provider** comes with a set of default options:
 
-- [WorkOS Provider options](https://github.com/nextauthjs/next-auth/blob/main/packages/next-auth/src/providers/workos.js)
+- [WorkOS Provider options](https://github.com/nextauthjs/next-auth/blob/main/packages/next-auth/src/providers/workos.ts)
 
 You can override any of the options to suit your own use case.
 

docs/docs/warnings.md

@@ -33,6 +33,10 @@ In development, we generate a `secret` based on your configuration for convenien
 
 Twitter OAuth 2.0 is currently in beta as certain changes might still be necessary. This is not covered by semver. See the docs https://next-auth.js.org/providers/twitter#oauth-2
 
+#### EXPERIMENTAL_API
+
+Some APIs are still experimental; they may be changed or removed in the future. Use at your own risk.
+
 ## Adapter
 
 ### ADAPTER_TYPEORM_UPDATING_ENTITIES

packages/adapter-dgraph/README.md

@@ -6,7 +6,7 @@
    Open Source. Full Stack. Own Your Data.
    </p>
    <!-- <p align="center" style="align: center;">
-      <img src="https://github.com/nextauthjs/adapters/actions/workflows/release.yml/badge.svg" alt="CI Test" />
+      <img src="https://github.com/nextauthjs/next-auth/actions/workflows/release.yml/badge.svg?branch=main" alt="CI Test" />
       <img src="https://img.shields.io/bundlephobia/minzip/@next-auth/prisma-adapter" alt="Bundle Size"/>
       <img src="https://img.shields.io/npm/v/@next-auth/prisma-adapter" alt="@next-auth/prisma-adapter Version" />
    </p> -->
@@ -150,7 +150,7 @@ type User
 
 ## Contributing
 
-We're open to all community contributions! If you'd like to contribute in any way, please read our [Contributing Guide](https://github.com/nextauthjs/adapters/blob/main/CONTRIBUTING.md).
+We're open to all community contributions! If you'd like to contribute in any way, please read our [Contributing Guide](https://github.com/nextauthjs/next-auth/blob/main/CONTRIBUTING.md).
 
 ## License
 

packages/adapter-dgraph/package.json

@@ -3,9 +3,9 @@
   "version": "1.0.3",
   "description": "Dgraph adapter for next-auth.",
   "homepage": "https://next-auth.js.org",
-  "repository": "https://github.com/nextauthjs/adapters",
+  "repository": "https://github.com/nextauthjs/next-auth",
   "bugs": {
-    "url": "https://github.com/nextauthjs/adapters/issues"
+    "url": "https://github.com/nextauthjs/next-auth/issues"
   },
   "author": "Arnaud Derbey <arnaud@derbey.dev>",
   "contributors": [],

packages/adapter-dynamodb/README.md

@@ -6,7 +6,7 @@
    Open Source. Full Stack. Own Your Data.
    </p>
    <p align="center" style="align: center;">
-      <img src="https://github.com/nextauthjs/adapters/actions/workflows/release.yml/badge.svg" alt="Build Test" />
+      <img src="https://github.com/nextauthjs/next-auth/actions/workflows/release.yml/badge.svg?branch=main" alt="Build Test" />
       <img src="https://img.shields.io/bundlephobia/minzip/@next-auth/dynamodb-adapter/latest" alt="Bundle Size"/>
       <img src="https://img.shields.io/npm/v/@next-auth/dynamodb-adapter" alt="@next-auth/dynamodb-adapter Version" />
    </p>
@@ -96,7 +96,7 @@ Here is a schema of the table :
 
 ## Contributing
 
-We're open to all community contributions! If you'd like to contribute in any way, please read our [Contributing Guide](https://github.com/nextauthjs/adapters/blob/main/CONTRIBUTING.md).
+We're open to all community contributions! If you'd like to contribute in any way, please read our [Contributing Guide](https://github.com/nextauthjs/next-auth/blob/main/CONTRIBUTING.md).
 
 ## License
 

packages/adapter-dynamodb/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@next-auth/dynamodb-adapter",
-  "repository": "https://github.com/nextauthjs/adapters",
+  "repository": "https://github.com/nextauthjs/next-auth",
   "version": "1.0.3",
   "description": "AWS DynamoDB adapter for next-auth.",
   "keywords": [

packages/adapter-fauna/README.md

@@ -7,7 +7,7 @@
    Open Source. Full Stack. Own Your Data.
    </p>
    <p align="center" style="align: center;">
-      <img src="https://github.com/nextauthjs/adapters/actions/workflows/release.yml/badge.svg" alt="Build Test" />
+      <img src="https://github.com/nextauthjs/next-auth/actions/workflows/release.yml/badge.svg?branch=main" alt="Build Test" />
       <a href="https://www.npmjs.com/package/@next-auth/faunadb-adapter" target="_blank"><img src="https://img.shields.io/bundlephobia/minzip/@next-auth/fauna-adapter/next" alt="Bundle Size"/></a>
       <a href="https://www.npmjs.com/package/@next-auth/faunadb-adapter" target="_blank"><img src="https://img.shields.io/npm/v/@next-auth/fauna-adapter/next" alt="@next-auth/fauna-adapter Version" /></a>
    </p>
@@ -53,7 +53,7 @@ export default NextAuth({
 
 ## Contributing
 
-We're open to all community contributions! If you'd like to contribute in any way, please read our [Contributing Guide](https://github.com/nextauthjs/adapters/blob/main/CONTRIBUTING.md).
+We're open to all community contributions! If you'd like to contribute in any way, please read our [Contributing Guide](https://github.com/nextauthjs/next-auth/blob/main/CONTRIBUTING.md).
 
 ## License
 

packages/adapter-fauna/package.json

@@ -3,7 +3,7 @@
   "version": "1.0.3",
   "description": "Fauna Adapter for NextAuth",
   "homepage": "https://next-auth.js.org",
-  "repository": "https://github.com/nextauthjs/adapters",
+  "repository": "https://github.com/nextauthjs/next-auth",
   "bugs": {
     "url": "https://github.com/nextauthjs/next-auth/issues"
   },

packages/adapter-firebase/README.md

@@ -7,7 +7,7 @@
    Open Source. Full Stack. Own Your Data.
    </p>
    <p align="center" style="align: center;">
-      <img src="https://github.com/nextauthjs/adapters/actions/workflows/release.yml/badge.svg" alt="Build Test" />
+      <img src="https://github.com/nextauthjs/next-auth/actions/workflows/release.yml/badge.svg?branch=main" alt="Build Test" />
       <img src="https://img.shields.io/bundlephobia/minzip/@next-auth/firebase-adapter/latest" alt="Bundle Size"/>
       <img src="https://img.shields.io/npm/v/@next-auth/firebase-adapter" alt="@next-auth/firebase-adapter Version" />
    </p>
@@ -83,7 +83,7 @@ See [firebase.google.com/docs/web/setup](https://firebase.google.com/docs/web/se
 
 ## Contributing
 
-We're open to all community contributions! If you'd like to contribute in any way, please read our [Contributing Guide](https://github.com/nextauthjs/adapters/blob/main/CONTRIBUTING.md).
+We're open to all community contributions! If you'd like to contribute in any way, please read our [Contributing Guide](https://github.com/nextauthjs/next-auth/blob/main/CONTRIBUTING.md).
 
 ## License
 

packages/adapter-firebase/package.json

@@ -3,9 +3,9 @@
   "version": "0.1.3",
   "description": "Firebase adapter for next-auth.",
   "homepage": "https://next-auth.js.org",
-  "repository": "https://github.com/nextauthjs/adapters",
+  "repository": "https://github.com/nextauthjs/next-auth",
   "bugs": {
-    "url": "https://github.com/nextauthjs/adapters/issues"
+    "url": "https://github.com/nextauthjs/next-auth/issues"
   },
   "author": "Ron Houben <ron.houben85@gmail.com>",
   "contributors": [

packages/adapter-mikro-orm/README.md

@@ -6,7 +6,7 @@
    Open Source. Full Stack. Own Your Data.
    </p>
    <p align="center" style="align: center;">
-      <img src="https://github.com/nextauthjs/adapters/actions/workflows/release.yml/badge.svg" alt="CI Test" />
+      <img src="https://github.com/nextauthjs/next-auth/actions/workflows/release.yml/badge.svg?branch=main" alt="CI Test" />
       <a href="https://www.npmjs.com/package/@next-auth/mikro-orm-adapter" target="_blank"><img src="https://img.shields.io/bundlephobia/minzip/@next-auth/mikro-orm-adapter/next" alt="Bundle Size"/></a>
       <a href="https://www.npmjs.com/package/@next-auth/mikro-orm-adapter" target="_blank"><img src="https://img.shields.io/npm/v/@next-auth/mikro-orm-adapter/next" alt="@next-auth/mikro-orm-adapter Version" /></a>
    </p>
@@ -49,7 +49,7 @@ This is the MikroORM Adapter for [`next-auth`](https://next-auth.js.org). This p
 
 ## Contributing
 
-We're open to all community contributions! If you'd like to contribute in any way, please read our [Contributing Guide](https://github.com/nextauthjs/adapters/blob/main/CONTRIBUTING.md).
+We're open to all community contributions! If you'd like to contribute in any way, please read our [Contributing Guide](https://github.com/nextauthjs/next-auth/blob/main/CONTRIBUTING.md).
 
 ## License
 

packages/adapter-mikro-orm/package.json

@@ -3,7 +3,7 @@
   "version": "2.0.1",
   "description": "MikroORM adapter for next-auth.",
   "homepage": "https://next-auth.js.org",
-  "repository": "https://github.com/nextauthjs/adapters",
+  "repository": "https://github.com/nextauthjs/next-auth",
   "bugs": {
     "url": "https://github.com/nextauthjs/next-auth/issues"
   },

packages/adapter-mongodb/README.md

@@ -6,7 +6,7 @@
    Open Source. Full Stack. Own Your Data.
    </p>
    <p align="center" style="align: center;">
-      <img src="https://github.com/nextauthjs/adapters/actions/workflows/release.yml/badge.svg" alt="CI Test" />
+      <img src="https://github.com/nextauthjs/next-auth/actions/workflows/release.yml/badge.svg?branch=main" alt="CI Test" />
       <a href="https://www.npmjs.com/package/@next-auth/mongodb-adapter" target="_blank"><img src="https://img.shields.io/bundlephobia/minzip/@next-auth/mongodb-adapter" alt="Bundle Size"/></a>
       <a href="https://www.npmjs.com/package/@next-auth/mongodb-adapter" target="_blank"><img src="https://img.shields.io/npm/v/@next-auth/mongodb-adapter" alt="@next-auth/mongodb-adapter Version" /></a>
    </p>
@@ -79,7 +79,7 @@ export default NextAuth({
 
 ## Contributing
 
-We're open to all community contributions! If you'd like to contribute in any way, please read our [Contributing Guide](https://github.com/nextauthjs/adapters/blob/main/CONTRIBUTING.md).
+We're open to all community contributions! If you'd like to contribute in any way, please read our [Contributing Guide](https://github.com/nextauthjs/next-auth/blob/main/CONTRIBUTING.md).
 
 ## License
 

packages/adapter-mongodb/package.json

@@ -3,7 +3,7 @@
   "version": "1.0.3",
   "description": "mongoDB adapter for next-auth.",
   "homepage": "https://next-auth.js.org",
-  "repository": "https://github.com/nextauthjs/adapters",
+  "repository": "https://github.com/nextauthjs/next-auth",
   "bugs": {
     "url": "https://github.com/nextauthjs/next-auth/issues"
   },

packages/adapter-neo4j/README.md

@@ -6,7 +6,7 @@
    Open Source. Full Stack. Own Your Data.
    </p>
    <p align="center" style="align: center;">
-      <img src="https://github.com/nextauthjs/adapters/actions/workflows/release.yml/badge.svg" alt="Canary CI Test" />
+      <img src="https://github.com/nextauthjs/next-auth/actions/workflows/release.yml/badge.svg?branch=main" alt="Canary CI Test" />
       <img src="https://img.shields.io/bundlephobia/minzip/@next-auth/neo4j-adapter" alt="Bundle Size"/>
       <img src="https://img.shields.io/npm/v/@next-auth/neo4j-adapter" alt="@next-auth/neo4j-adapter Version" />
    </p>
@@ -50,7 +50,7 @@ export default NextAuth({
 
 ## Contributing
 
-We're open to all community contributions! If you'd like to contribute in any way, please first read our [Contributing Guide](https://github.com/nextauthjs/adapters/blob/canary/CONTRIBUTING.md).
+We're open to all community contributions! If you'd like to contribute in any way, please first read our [Contributing Guide](https://github.com/nextauthjs/next-auth/blob/canary/CONTRIBUTING.md).
 
 ## License
 

packages/adapter-neo4j/package.json

@@ -3,7 +3,7 @@
   "version": "1.0.3",
   "description": "neo4j adapter for next-auth.",
   "homepage": "https://next-auth.js.org",
-  "repository": "https://github.com/nextauthjs/adapters",
+  "repository": "https://github.com/nextauthjs/next-auth",
   "bugs": {
     "url": "https://github.com/nextauthjs/next-auth/issues"
   },

packages/adapter-pouchdb/README.md

@@ -6,7 +6,7 @@
    Open Source. Full Stack. Own Your Data.
    </p>
    <p align="center" style="align: center;">
-      <img src="https://github.com/nextauthjs/adapters/actions/workflows/release.yml/badge.svg" alt="CI Test" />
+      <img src="https://github.com/nextauthjs/next-auth/actions/workflows/release.yml/badge.svg?branch=main" alt="CI Test" />
       <img src="https://img.shields.io/bundlephobia/minzip/@next-auth/pouchdb-adapter" alt="Bundle Size"/>
       <img src="https://img.shields.io/npm/v/@next-auth/pouchdb-adapter" alt="@next-auth/pouchdb-adapter Version" />
    </p>
@@ -71,7 +71,7 @@ For more details, please see https://pouchdb.com/api.html#sync
 
 ## Contributing
 
-We're open to all community contributions! If you'd like to contribute in any way, please read our [Contributing Guide](https://github.com/nextauthjs/adapters/blob/main/CONTRIBUTING.md).
+We're open to all community contributions! If you'd like to contribute in any way, please read our [Contributing Guide](https://github.com/nextauthjs/next-auth/blob/main/CONTRIBUTING.md).
 
 ## License
 

packages/adapter-pouchdb/package.json

@@ -3,7 +3,7 @@
   "version": "0.1.3",
   "description": "PouchDB adapter for next-auth.",
   "homepage": "https://next-auth.js.org",
-  "repository": "https://github.com/nextauthjs/adapters",
+  "repository": "https://github.com/nextauthjs/next-auth",
   "bugs": {
     "url": "https://github.com/nextauthjs/next-auth/issues"
   },

packages/adapter-prisma/README.md

@@ -6,7 +6,7 @@
    Open Source. Full Stack. Own Your Data.
    </p>
    <p align="center" style="align: center;">
-      <img src="https://github.com/nextauthjs/adapters/actions/workflows/release.yml/badge.svg" alt="CI Test" />
+      <img src="https://github.com/nextauthjs/next-auth/actions/workflows/release.yml/badge.svg?branch=main" alt="CI Test" />
       <a href="https://www.npmjs.com/package/@next-auth/prisma-adapter" target="_blank"><img src="https://img.shields.io/bundlephobia/minzip/@next-auth/prisma-adapter/next" alt="Bundle Size"/></a>
       <a href="https://www.npmjs.com/package/@next-auth/prisma-adapter" target="_blank"><img src="https://img.shields.io/npm/v/@next-auth/prisma-adapter/next" alt="@next-auth/prisma-adapter Version" /></a>
    </p>
@@ -48,7 +48,7 @@ export default NextAuth({
 
 ## Contributing
 
-We're open to all community contributions! If you'd like to contribute in any way, please read our [Contributing Guide](https://github.com/nextauthjs/adapters/blob/main/CONTRIBUTING.md).
+We're open to all community contributions! If you'd like to contribute in any way, please read our [Contributing Guide](https://github.com/nextauthjs/next-auth/blob/main/CONTRIBUTING.md).
 
 ## License
 

packages/adapter-prisma/package.json

@@ -3,7 +3,7 @@
   "version": "1.0.3",
   "description": "Prisma adapter for next-auth.",
   "homepage": "https://next-auth.js.org",
-  "repository": "https://github.com/nextauthjs/adapters",
+  "repository": "https://github.com/nextauthjs/next-auth",
   "bugs": {
     "url": "https://github.com/nextauthjs/next-auth/issues"
   },

packages/adapter-sequelize/README.md

@@ -6,7 +6,7 @@
    Open Source. Full Stack. Own Your Data.
    </p>
    <p align="center" style="align: center;">
-      <img src="https://github.com/nextauthjs/adapters/actions/workflows/release.yml/badge.svg" alt="CI Test" />
+      <img src="https://github.com/nextauthjs/next-auth/actions/workflows/release.yml/badge.svg?branch=main" alt="CI Test" />
       <img src="https://img.shields.io/bundlephobia/minzip/@next-auth/sequelize-adapter" alt="Bundle Size"/>
       <img src="https://img.shields.io/npm/v/@next-auth/sequelize-adapter" alt="@next-auth/sequelize-adapter Version" />
    </p>
@@ -89,7 +89,7 @@ export default NextAuth({
 
 ## Contributing
 
-We're open to all community contributions! If you'd like to contribute in any way, please read our [Contributing Guide](https://github.com/nextauthjs/adapters/blob/main/CONTRIBUTING.md).
+We're open to all community contributions! If you'd like to contribute in any way, please read our [Contributing Guide](https://github.com/nextauthjs/next-auth/blob/main/CONTRIBUTING.md).
 
 ## License
 

packages/adapter-sequelize/package.json

@@ -1,11 +1,11 @@
 {
   "name": "@next-auth/sequelize-adapter",
-  "version": "1.0.3",
+  "version": "1.0.4",
   "description": "Sequelize adapter for next-auth.",
   "homepage": "https://next-auth.js.org",
-  "repository": "https://github.com/nextauthjs/adapters",
+  "repository": "https://github.com/nextauthjs/next-auth",
   "bugs": {
-    "url": "https://github.com/nextauthjs/adapters/issues"
+    "url": "https://github.com/nextauthjs/next-auth/issues"
   },
   "author": "github.com/luke-j",
   "main": "dist/index.js",
@@ -42,4 +42,4 @@
   "jest": {
     "preset": "@next-auth/adapter-test/jest"
   }
-}
+}

packages/adapter-test/jest/jest-preset.js

@@ -1,7 +1,7 @@
 module.exports = {
   transform: {
-    ".(ts|tsx)$": "ts-jest",
-    ".(js|jsx)$": "babel-jest", // jest's default
+    ".(ts|tsx)$": "@swc/jest",
+    ".(js|jsx)$": "@swc/jest", // jest's default
   },
   transformIgnorePatterns: ["[/\\\\]node_modules[/\\\\].+\\.(js|jsx)$"],
   moduleFileExtensions: ["ts", "tsx", "js", "jsx", "json", "node"],

packages/adapter-test/package.json

@@ -19,7 +19,6 @@
     "@types/nodemailer": "^6.4.4",
     "@typescript-eslint/eslint-plugin": "^4.24.0",
     "@typescript-eslint/parser": "^4.24.0",
-    "babel-jest": "^27.4.2",
     "eslint": "^7.27.0",
     "eslint-config-prettier": "^8.3.0",
     "eslint-config-standard-with-typescript": "^20.0.0",

packages/adapter-typeorm-legacy/README.md

@@ -6,7 +6,7 @@
    Open Source. Full Stack. Own Your Data.
    </p>
    <p align="center" style="align: center;">
-      <img src="https://github.com/nextauthjs/adapters/actions/workflows/release.yml/badge.svg" alt="Canary CI Test" />
+      <img src="https://github.com/nextauthjs/next-auth/actions/workflows/release.yml/badge.svg?branch=main" alt="Canary CI Test" />
       <img src="https://img.shields.io/bundlephobia/minzip/@next-auth/typeorm-legacy-adapter/canary" alt="Bundle Size"/>
       <img src="https://img.shields.io/npm/v/@next-auth/typeorm-legacy-adapter" alt="@next-auth/typeorm-legacy-adapter Version" />
    </p>

packages/adapter-typeorm-legacy/package.json

@@ -3,9 +3,9 @@
   "version": "1.0.3",
   "description": "TypeORM (legacy) adapter for next-auth.",
   "homepage": "https://next-auth.js.org",
-  "repository": "https://github.com/nextauthjs/adapters",
+  "repository": "https://github.com/nextauthjs/next-auth",
   "bugs": {
-    "url": "https://github.com/nextauthjs/adapters/issues"
+    "url": "https://github.com/nextauthjs/next-auth/issues"
   },
   "author": "Iain Collins",
   "contributors": [

packages/adapter-upstash-redis/README.md

@@ -6,7 +6,7 @@
    Open Source. Full Stack. Own Your Data.
    </p>
    <p align="center" style="align: center;">
-      <img src="https://github.com/nextauthjs/adapters/actions/workflows/release.yml/badge.svg" alt="CI Test" />
+      <img src="https://github.com/nextauthjs/next-auth/actions/workflows/release.yml/badge.svg?branch=main" alt="CI Test" />
       <img src="https://img.shields.io/bundlephobia/minzip/@next-auth/upstash-adapter" alt="Bundle Size"/>
       <img src="https://img.shields.io/npm/v/@next-auth/upstash-adapter" alt="@next-auth/upstash-adapter Version" />
    </p>
@@ -80,7 +80,7 @@ export default NextAuth({
 
 ## Contributing
 
-We're open to all community contributions! If you'd like to contribute in any way, please read our [Contributing Guide](https://github.com/nextauthjs/adapters/blob/main/CONTRIBUTING.md).
+We're open to all community contributions! If you'd like to contribute in any way, please read our [Contributing Guide](https://github.com/nextauthjs/next-auth/blob/main/CONTRIBUTING.md).
 
 ## License
 

packages/adapter-upstash-redis/package.json

@@ -3,9 +3,9 @@
   "version": "3.0.0",
   "description": "Upstash adapter for next-auth. It uses Upstash's connectionless (HTTP based) Redis client.",
   "homepage": "https://next-auth.js.org",
-  "repository": "https://github.com/nextauthjs/adapters",
+  "repository": "https://github.com/nextauthjs/next-auth",
   "bugs": {
-    "url": "https://github.com/nextauthjs/adapters/issues"
+    "url": "https://github.com/nextauthjs/next-auth/issues"
   },
   "author": "github.com/kay-is",
   "main": "dist/index.js",

packages/next-auth/config/babel.config.js

@@ -25,7 +25,6 @@ module.exports = (api) => {
     ignore: [
       "../src/**/__tests__/**",
       "../src/adapters.ts",
-      "../src/lib/types.ts",
       "../src/providers/oauth-types.ts",
     ],
     comments: false,
@@ -33,7 +32,7 @@ module.exports = (api) => {
       {
         test: [
           "../src/react/index.tsx",
-          "../src/lib/logger.ts",
+          "../src/utils/logger.ts",
           "../src/core/errors.ts",
           "../src/client/**",
         ],

packages/next-auth/config/jest.client.config.js

@@ -1,10 +1,7 @@
 /** @type {import('@jest/types').Config.InitialOptions} */
 module.exports = {
   transform: {
-    "\\.(js|jsx|ts|tsx)$": [
-      "babel-jest",
-      { configFile: "./config/babel.config.js" },
-    ],
+    "\\.(js|jsx|ts|tsx)$": ["@swc/jest", require("./swc.config")],
   },
   rootDir: "../src",
   setupFilesAfterEnv: ["../config/jest-setup.js"],

packages/next-auth/config/jest.core.config.js

@@ -0,0 +1,13 @@
+/** @type {import('@jest/types').Config.InitialOptions} */
+module.exports = {
+  transform: {
+    "\\.(js|jsx|ts|tsx)$": ["@swc/jest", require("./swc.config")],
+  },
+  rootDir: "..",
+  testMatch: ["**/*.test.ts"],
+  setupFilesAfterEnv: ["./config/jest-setup.js"],
+  watchPlugins: [
+    "jest-watch-typeahead/filename",
+    "jest-watch-typeahead/testname",
+  ],
+}

packages/next-auth/config/swc.config.js

@@ -0,0 +1,17 @@
+module.exports = {
+  jsc: {
+    parser: {
+      syntax: "typescript",
+      tsx: true,
+    },
+    transform: {
+      react: {
+        runtime: "automatic",
+        pragma: "React.createElement",
+        pragmaFrag: "React.Fragment",
+        throwIfNamespace: true,
+        useBuiltins: true,
+      },
+    },
+  },
+}

packages/next-auth/package.json

@@ -1,6 +1,6 @@
 {
   "name": "next-auth",
-  "version": "4.4.0",
+  "version": "4.6.1",
   "description": "Authentication for Next.js",
   "homepage": "https://next-auth.js.org",
   "repository": "https://github.com/nextauthjs/next-auth.git",
@@ -37,11 +37,13 @@
   },
   "scripts": {
     "build": "pnpm clean && pnpm build:js && pnpm build:css",
-    "clean": "rm -rf client css lib providers core jwt react next index.d.ts index.js adapters.d.ts middleware.d.ts middleware.js",
+    "clean": "rm -rf client css utils providers core jwt react next index.d.ts index.js adapters.d.ts middleware.d.ts middleware.js",
     "build:js": "pnpm clean && pnpm generate-providers && tsc && babel --config-file ./config/babel.config.js src --out-dir . --extensions \".tsx,.ts,.js,.jsx\"",
     "build:css": "postcss --config config/postcss.config.js src/**/*.css --base src --dir . && node config/wrap-css.js",
     "watch:css": "postcss --config config/postcss.config.js --watch src/**/*.css --base src --dir .",
-    "test": "jest --config ./config/jest.config.js",
+    "test:client": "jest --config ./config/jest.client.config.js",
+    "test:core": "jest --config ./config/jest.core.config.js",
+    "test": "pnpm test:core && pnpm test:client",
     "prepublishOnly": "pnpm build",
     "generate-providers": "node ./config/generate-providers.js",
     "setup": "pnpm generate-providers",
@@ -60,7 +62,8 @@
     "index.js",
     "adapters.d.ts",
     "middleware.d.ts",
-    "middleware.js"
+    "middleware.js",
+    "utils"
   ],
   "license": "ISC",
   "dependencies": {
@@ -85,38 +88,40 @@
     }
   },
   "devDependencies": {
-    "@babel/cli": "^7.16.0",
-    "@babel/core": "^7.16.0",
-    "@babel/plugin-proposal-optional-catch-binding": "^7.16.0",
-    "@babel/plugin-transform-runtime": "^7.16.4",
-    "@babel/preset-env": "^7.16.4",
-    "@babel/preset-react": "^7.16.0",
-    "@babel/preset-typescript": "^7.16.0",
+    "@babel/cli": "^7.17.10",
+    "@babel/core": "^7.18.2",
+    "@babel/plugin-proposal-optional-catch-binding": "^7.16.7",
+    "@babel/plugin-transform-runtime": "^7.18.2",
+    "@babel/preset-env": "^7.18.2",
+    "@babel/preset-react": "^7.17.12",
+    "@babel/preset-typescript": "^7.17.12",
     "@next-auth/tsconfig": "workspace:^0.0.0",
-    "@testing-library/dom": "^8.11.3",
-    "@testing-library/jest-dom": "^5.16.1",
-    "@testing-library/react": "^12.1.2",
-    "@testing-library/react-hooks": "^7.0.2",
-    "@testing-library/user-event": "^13.5.0",
-    "@types/node": "^16.11.12",
+    "@swc/core": "^1.2.198",
+    "@swc/jest": "^0.2.21",
+    "@testing-library/dom": "^8.13.0",
+    "@testing-library/jest-dom": "^5.16.4",
+    "@testing-library/react": "^13.3.0",
+    "@testing-library/react-hooks": "^8.0.0",
+    "@testing-library/user-event": "^14.2.0",
+    "@types/node": "^17.0.42",
     "@types/nodemailer": "^6.4.4",
     "@types/oauth": "^0.9.1",
-    "@types/react": "^17.0.37",
-    "@types/react-dom": "^17.0.11",
-    "autoprefixer": "^10.4.0",
-    "babel-jest": "^27.4.2",
+    "@types/react": "^18.0.2",
+    "@types/react-dom": "^18.0.5",
+    "autoprefixer": "^10.4.7",
     "babel-plugin-jsx-pragmatic": "^1.0.2",
     "babel-preset-preact": "^2.0.0",
-    "cssnano": "^5.0.12",
-    "jest": "^27.4.3",
-    "jest-watch-typeahead": "^1.0.0",
-    "msw": "^0.36.3",
-    "next": "12.1.0",
-    "postcss": "^8.4.12",
-    "postcss-cli": "^9.0.2",
+    "cssnano": "^5.1.11",
+    "jest": "^28.1.1",
+    "jest-environment-jsdom": "^28.1.1",
+    "jest-watch-typeahead": "^1.1.0",
+    "msw": "^0.42.1",
+    "next": "^12.1.6",
+    "postcss": "^8.4.14",
+    "postcss-cli": "^9.1.0",
     "postcss-nested": "^5.0.6",
-    "react": "^17.0.2",
-    "react-dom": "^17.0.2",
+    "react": "^18.1.0",
+    "react-dom": "^18.1.0",
     "whatwg-fetch": "^3.6.2"
   },
   "engines": {
@@ -132,4 +137,4 @@
     "**/tests",
     "**/__tests__"
   ]
-}
+}

packages/next-auth/src/adapters.ts

@@ -52,7 +52,7 @@ export interface VerificationToken {
  * - `deleteUser`
  * - `unlinkAccount`
  *
- * [Community adapters](https://github.com/nextauthjs/adapters) |
+ * [Adapters Overview](https://next-auth.js.org/adapters/overview) |
  * [Create a custom adapter](https://next-auth.js.org/tutorials/creating-a-database-adapter)
  */
 export interface Adapter {

packages/next-auth/src/client/__tests__/csrf.test.js

@@ -2,11 +2,11 @@ import { useState } from "react"
 import userEvent from "@testing-library/user-event"
 import { render, screen, waitFor } from "@testing-library/react"
 import { server, mockCSRFToken } from "./helpers/mocks"
-import logger from "../../lib/logger"
+import logger from "../../utils/logger"
 import { getCsrfToken } from "../../react"
 import { rest } from "msw"
 
-jest.mock("../../lib/logger", () => ({
+jest.mock("../../utils/logger", () => ({
   __esModule: true,
   default: {
     warn: jest.fn(),

packages/next-auth/src/client/__tests__/providers.test.js

@@ -3,10 +3,10 @@ import userEvent from "@testing-library/user-event"
 import { render, screen, waitFor } from "@testing-library/react"
 import { server, mockProviders } from "./helpers/mocks"
 import { getProviders } from "../../react"
-import logger from "../../lib/logger"
+import logger from "../../utils/logger"
 import { rest } from "msw"
 
-jest.mock("../../lib/logger", () => ({
+jest.mock("../../utils/logger", () => ({
   __esModule: true,
   default: {
     warn: jest.fn(),

packages/next-auth/src/client/__tests__/session.test.js

@@ -1,12 +1,12 @@
 import { render, screen, waitFor } from "@testing-library/react"
 import { rest } from "msw"
 import { server, mockSession } from "./helpers/mocks"
-import logger from "../../lib/logger"
+import logger from "../../utils/logger"
 import { useState, useEffect } from "react"
 import { getSession } from "../../react"
 import { getBroadcastEvents } from "./helpers/utils"
 
-jest.mock("../../lib/logger", () => ({
+jest.mock("../../utils/logger", () => ({
   __esModule: true,
   default: {
     warn: jest.fn(),

packages/next-auth/src/client/__tests__/sign-in.test.js

@@ -1,7 +1,7 @@
 import { useState } from "react"
 import userEvent from "@testing-library/user-event"
 import { render, screen, waitFor } from "@testing-library/react"
-import logger from "../../lib/logger"
+import logger from "../../utils/logger"
 import {
   server,
   mockCredentialsResponse,
@@ -13,7 +13,7 @@ import { rest } from "msw"
 
 const { location } = window
 
-jest.mock("../../lib/logger", () => ({
+jest.mock("../../utils/logger", () => ({
   __esModule: true,
   default: {
     warn: jest.fn(),

packages/next-auth/src/core/index.ts

@@ -1,16 +1,16 @@
-import logger, { setLogger } from "../lib/logger"
+import logger, { setLogger } from "../utils/logger"
+import { detectHost } from "../utils/detect-host"
 import * as routes from "./routes"
 import renderPage from "./pages"
 import { init } from "./init"
 import { assertConfig } from "./lib/assert"
 import { SessionStore } from "./lib/cookie"
 
-import type { NextAuthOptions } from "./types"
-import type { NextAuthAction } from "../lib/types"
+import type { NextAuthAction, NextAuthOptions } from "./types"
 import type { Cookie } from "./lib/cookie"
 import type { ErrorType } from "./pages/error"
 
-export interface IncomingRequest {
+export interface RequestInternal {
   /** @default "http://localhost:3000" */
   host?: string
   method?: string
@@ -39,18 +39,55 @@ export interface OutgoingResponse<
 }
 
 export interface NextAuthHandlerParams {
-  req: IncomingRequest
+  req: Request | RequestInternal
   options: NextAuthOptions
 }
 
+async function getBody(req: Request): Promise<Record<string, any> | undefined> {
+  try {
+    return await req.json()
+  } catch {}
+}
+
+// TODO:
+async function toInternalRequest(
+  req: RequestInternal | Request
+): Promise<RequestInternal> {
+  if (req instanceof Request) {
+    const url = new URL(req.url)
+    // TODO: handle custom paths?
+    const nextauth = url.pathname.split("/").slice(3)
+    const headers = Object.fromEntries(req.headers.entries())
+    const query: Record<string, any> = Object.fromEntries(
+      url.searchParams.entries()
+    )
+    query.nextauth = nextauth
+
+    return {
+      action: nextauth[0] as NextAuthAction,
+      method: req.method,
+      headers,
+      body: await getBody(req),
+      cookies: {},
+      providerId: nextauth[1],
+      error: url.searchParams.get("error") ?? nextauth[1],
+      host: detectHost(headers["x-forwarded-host"] ?? headers.host),
+      query,
+    }
+  }
+  return req
+}
+
 export async function NextAuthHandler<
   Body extends string | Record<string, any> | any[]
 >(params: NextAuthHandlerParams): Promise<OutgoingResponse<Body>> {
-  const { options: userOptions, req } = params
+  const { options: userOptions, req: incomingRequest } = params
+
+  const req = await toInternalRequest(incomingRequest)
 
   setLogger(userOptions.logger, userOptions.debug)
 
-  const assertionResult = assertConfig(params)
+  const assertionResult = assertConfig({ options: userOptions, req })
 
   if (typeof assertionResult === "string") {
     logger.warn(assertionResult)

packages/next-auth/src/core/init.ts

@@ -1,7 +1,6 @@
 import { NextAuthOptions } from ".."
-import logger from "../lib/logger"
-import parseUrl from "../lib/parse-url"
-import { InternalOptions } from "../lib/types"
+import logger from "../utils/logger"
+import parseUrl from "../utils/parse-url"
 import { adapterErrorHandler, eventsErrorHandler } from "./errors"
 import parseProviders from "./lib/providers"
 import createSecret from "./lib/utils"
@@ -10,7 +9,9 @@ import * as jwt from "../jwt"
 import { defaultCallbacks } from "./lib/default-callbacks"
 import { createCSRFToken } from "./lib/csrf-token"
 import { createCallbackUrl } from "./lib/callback-url"
-import { IncomingRequest } from "."
+import { RequestInternal } from "."
+
+import type { InternalOptions } from "./types"
 
 interface InitParams {
   host?: string
@@ -23,7 +24,7 @@ interface InitParams {
   csrfToken?: string
   /** Is the incoming request a POST request? */
   isPost: boolean
-  cookies: IncomingRequest["cookies"]
+  cookies: RequestInternal["cookies"]
 }
 
 /** Initialize all internal options and cookies. */

packages/next-auth/src/core/lib/assert.ts

@@ -6,11 +6,11 @@ import {
   UnsupportedStrategy,
   InvalidCallbackUrl,
 } from "../errors"
-import parseUrl from "../../lib/parse-url"
+import parseUrl from "../../utils/parse-url"
 import { defaultCookies } from "./cookie"
 
-import type { NextAuthHandlerParams } from ".."
-import type { WarningCode } from "../../lib/logger"
+import type { NextAuthHandlerParams, RequestInternal } from ".."
+import type { WarningCode } from "../../utils/logger"
 
 type ConfigError =
   | MissingAPIRoute
@@ -21,9 +21,11 @@ type ConfigError =
 
 let twitterWarned = false
 
-function isValidHttpUrl(url: string) {
+function isValidHttpUrl(url: string, baseUrl: string) {
   try {
-    return /^https?:/.test(new URL(url).protocol)
+    return /^https?:/.test(
+      new URL(url, url.startsWith("/") ? baseUrl : undefined).protocol
+    )
   } catch {
     return false
   }
@@ -36,11 +38,13 @@ function isValidHttpUrl(url: string) {
  * REVIEW: Make some of these and corresponding docs less Next.js specific?
  */
 export function assertConfig(
-  params: NextAuthHandlerParams
+  params: NextAuthHandlerParams & {
+    req: RequestInternal
+  }
 ): ConfigError | WarningCode | undefined {
   const { options, req } = params
 
-  // req.query isn't defined when asserting `getServerSession` for example
+  // req.query isn't defined when asserting `unstable_getServerSession` for example
   if (!req.query?.nextauth && !req.action) {
     return new MissingAPIRoute(
       "Cannot find [...nextauth].{js,ts} in `/pages/api/auth`. Make sure the filename is written correctly."
@@ -57,23 +61,24 @@ export function assertConfig(
 
   const callbackUrlParam = req.query?.callbackUrl as string | undefined
 
-  if (callbackUrlParam && !isValidHttpUrl(callbackUrlParam)) {
+  const url = parseUrl(req.host)
+
+  if (callbackUrlParam && !isValidHttpUrl(callbackUrlParam, url.base)) {
     return new InvalidCallbackUrl(
       `Invalid callback URL. Received: ${callbackUrlParam}`
     )
   }
 
+  // This is below the callbackUrlParam check because it would obscure the error
   if (!req.host) return "NEXTAUTH_URL"
 
-  const url = parseUrl(req.host)
-
   const { callbackUrl: defaultCallbackUrl } = defaultCookies(
     options.useSecureCookies ?? url.base.startsWith("https://")
   )
   const callbackUrlCookie =
     req.cookies?.[options.cookies?.callbackUrl?.name ?? defaultCallbackUrl.name]
 
-  if (callbackUrlCookie && !isValidHttpUrl(callbackUrlCookie)) {
+  if (callbackUrlCookie && !isValidHttpUrl(callbackUrlCookie, url.base)) {
     return new InvalidCallbackUrl(
       `Invalid callback URL. Received: ${callbackUrlCookie}`
     )

packages/next-auth/src/core/lib/callback-handler.ts

@@ -1,11 +1,12 @@
+import { randomBytes, randomUUID } from "crypto"
 import { AccountNotLinkedError } from "../errors"
 import { fromDate } from "./utils"
-import { randomBytes, randomUUID } from "crypto"
-import { InternalOptions } from "../../lib/types"
-import { AdapterSession, AdapterUser } from "../../adapters"
-import { JWT } from "../../jwt"
-import { Account, User } from "../.."
-import { SessionToken } from "./cookie"
+
+import type { InternalOptions } from "../types"
+import type { AdapterSession, AdapterUser } from "../../adapters"
+import type { JWT } from "../../jwt"
+import type { Account, User } from "../.."
+import type { SessionToken } from "./cookie"
 
 /**
  * This function handles the complex flow of signing users in, and either creating,

packages/next-auth/src/core/lib/callback-url.ts

@@ -1,4 +1,4 @@
-import { InternalOptions } from "../../lib/types"
+import type { InternalOptions } from "../types"
 
 interface CreateCallbackUrlParams {
   options: InternalOptions

packages/next-auth/src/core/lib/cookie.ts

@@ -120,7 +120,7 @@ export class SessionStore {
   constructor(
     option: CookieOption,
     req: {
-      cookies?: Record<string, string>
+      cookies?: Record<string, string> | { get: (key: string) => string }
       headers?: Headers | IncomingHttpHeaders | Record<string, string>
     },
     logger: LoggerInstance | Console
@@ -132,7 +132,10 @@ export class SessionStore {
 
     for (const name in req.cookies) {
       if (name.startsWith(option.name)) {
-        this.#chunks[name] = req.cookies[name]
+        this.#chunks[name] =
+          typeof req.cookies.get === "function"
+            ? req.cookies.get(name)
+            : req.cookies[name]
       }
     }
   }

packages/next-auth/src/core/lib/csrf-token.ts

@@ -1,5 +1,6 @@
 import { createHash, randomBytes } from "crypto"
-import { InternalOptions } from "../../lib/types"
+
+import type { InternalOptions } from "../types"
 
 interface CreateCSRFTokenParams {
   options: InternalOptions

packages/next-auth/src/core/lib/email/signin.ts

@@ -1,6 +1,6 @@
 import { randomBytes } from "crypto"
-import { InternalOptions } from "../../../lib/types"
 import { hashToken } from "../utils"
+import type { InternalOptions } from "../../types"
 
 /**
  * Starts an e-mail login flow, by generating a token,

packages/next-auth/src/core/lib/oauth/authorization-url.ts

@@ -4,8 +4,8 @@ import { createState } from "./state-handler"
 import { createPKCE } from "./pkce-handler"
 
 import type { AuthorizationParameters } from "openid-client"
-import type { InternalOptions } from "../../../lib/types"
-import type { IncomingRequest } from "../.."
+import type { InternalOptions } from "../../types"
+import type { RequestInternal } from "../.."
 import type { Cookie } from "../cookie"
 
 /**
@@ -16,7 +16,7 @@ import type { Cookie } from "../cookie"
  */
 export default async function getAuthorizationUrl(params: {
   options: InternalOptions<"oauth">
-  query: IncomingRequest["query"]
+  query: RequestInternal["query"]
 }) {
   const { options, query } = params
   const { logger, provider } = options

packages/next-auth/src/core/lib/oauth/callback.ts

@@ -8,16 +8,16 @@ import { OAuthCallbackError } from "../../errors"
 import type { CallbackParamsType } from "openid-client"
 import type { Account, LoggerInstance, Profile } from "../../.."
 import type { OAuthChecks, OAuthConfig } from "../../../providers"
-import type { InternalOptions } from "../../../lib/types"
-import type { IncomingRequest, OutgoingResponse } from "../.."
+import type { InternalOptions } from "../../types"
+import type { RequestInternal, OutgoingResponse } from "../.."
 import type { Cookie } from "../cookie"
 
 export default async function oAuthCallback(params: {
   options: InternalOptions<"oauth">
-  query: IncomingRequest["query"]
-  body: IncomingRequest["body"]
-  method: Required<IncomingRequest>["method"]
-  cookies: IncomingRequest["cookies"]
+  query: RequestInternal["query"]
+  body: RequestInternal["body"]
+  method: Required<RequestInternal>["method"]
+  cookies: RequestInternal["cookies"]
 }): Promise<GetProfileResult & { cookies?: OutgoingResponse["cookies"] }> {
   const { options, query, body, method, cookies } = params
   const { logger, provider } = options

packages/next-auth/src/core/lib/oauth/client-legacy.ts

@@ -2,7 +2,7 @@
 // We have the intentions to provide only minor fixes for this in the future.
 
 import { OAuth } from "oauth"
-import { InternalOptions } from "src/lib/types"
+import type { InternalOptions } from "../../types"
 
 /**
  * Client supporting OAuth 1.x

packages/next-auth/src/core/lib/oauth/client.ts

@@ -1,5 +1,6 @@
-import { Issuer, Client, custom } from "openid-client"
-import { InternalOptions } from "src/lib/types"
+import { Issuer, custom } from "openid-client"
+import type { Client } from "openid-client"
+import type { InternalOptions } from "../../types"
 
 /**
  * NOTE: We can add auto discovery of the provider's endpoint
@@ -12,9 +13,9 @@ export async function openidClient(
   options: InternalOptions<"oauth">
 ): Promise<Client> {
   const provider = options.provider
-  
+
   if (provider.httpOptions) custom.setHttpOptionsDefaults(provider.httpOptions)
-  
+
   let issuer: Issuer
   if (provider.wellKnown) {
     issuer = await Issuer.discover(provider.wellKnown)

packages/next-auth/src/core/lib/oauth/pkce-handler.ts

@@ -1,6 +1,6 @@
 import * as jwt from "../../../jwt"
 import { generators } from "openid-client"
-import type { InternalOptions } from "src/lib/types"
+import type { InternalOptions } from "../../types"
 import type { Cookie } from "../cookie"
 
 const PKCE_CODE_CHALLENGE_METHOD = "S256"

packages/next-auth/src/core/lib/oauth/state-handler.ts

@@ -1,6 +1,6 @@
 import { generators } from "openid-client"
 
-import type { InternalOptions } from "src/lib/types"
+import type { InternalOptions } from "../../types"
 import type { Cookie } from "../cookie"
 
 const STATE_MAX_AGE = 60 * 15 // 15 minutes in seconds

packages/next-auth/src/core/lib/providers.ts

@@ -1,8 +1,8 @@
-import { merge } from "../../lib/merge"
+import { merge } from "../../utils/merge"
 
-import type { InternalProvider } from "../../lib/types"
+import type { InternalProvider } from "../types"
 import type { Provider } from "../../providers"
-import type { InternalUrl } from "../../lib/parse-url"
+import type { InternalUrl } from "../../utils/parse-url"
 
 /**
  * Adds `signinUrl` and `callbackUrl` to each provider

packages/next-auth/src/core/lib/utils.ts

@@ -1,7 +1,8 @@
 import { createHash } from "crypto"
-import { NextAuthOptions } from "../.."
-import { InternalOptions } from "../../lib/types"
-import { InternalUrl } from "../../lib/parse-url"
+
+import type { NextAuthOptions } from "../.."
+import type { InternalOptions } from "../types"
+import type { InternalUrl } from "../../utils/parse-url"
 
 /**
  * Takes a number in seconds and returns the date in the future.

packages/next-auth/src/core/pages/error.tsx

@@ -1,5 +1,5 @@
 import { Theme } from "../.."
-import { InternalUrl } from "../../lib/parse-url"
+import { InternalUrl } from "../../utils/parse-url"
 
 /**
  * The following errors are passed as error query parameters to the default or overridden error page.

packages/next-auth/src/core/pages/index.ts

@@ -5,13 +5,13 @@ import VerifyRequestPage from "./verify-request"
 import ErrorPage from "./error"
 import css from "../../css"
 
-import type { InternalOptions } from "../../lib/types"
-import type { IncomingRequest, OutgoingResponse } from ".."
+import type { InternalOptions } from "../types"
+import type { RequestInternal, OutgoingResponse } from ".."
 import type { Cookie } from "../lib/cookie"
 import type { ErrorType } from "./error"
 
 type RenderPageParams = {
-  query?: IncomingRequest["query"]
+  query?: RequestInternal["query"]
   cookies?: Cookie[]
 } & Partial<
   Pick<

packages/next-auth/src/core/pages/signin.tsx

@@ -1,5 +1,4 @@
-import { Theme } from "../.."
-import { InternalProvider } from "../../lib/types"
+import type { InternalProvider, Theme } from "../types"
 
 /**
  * The following errors are passed as error query parameters to the default or overridden sign-in page.

packages/next-auth/src/core/pages/signout.tsx

@@ -1,5 +1,5 @@
 import { Theme } from "../.."
-import { InternalUrl } from "../../lib/parse-url"
+import { InternalUrl } from "../../utils/parse-url"
 
 export interface SignoutProps {
   url: InternalUrl
@@ -12,15 +12,17 @@ export default function SignoutPage(props: SignoutProps) {
 
   return (
     <div className="signout">
-      { theme.brandColor && <style
-        dangerouslySetInnerHTML={{
-          __html: `
+      {theme.brandColor && (
+        <style
+          dangerouslySetInnerHTML={{
+            __html: `
         :root {
           --brand-color: ${theme.brandColor}
         }
       `,
-        }}
-      /> }
+          }}
+        />
+      )}
       {theme.logo && <img src={theme.logo} alt="Logo" className="logo" />}
       <div className="card">
         <h1>Signout</h1>

packages/next-auth/src/core/pages/verify-request.tsx

@@ -1,5 +1,5 @@
 import { Theme } from "../.."
-import { InternalUrl } from "../../lib/parse-url"
+import { InternalUrl } from "../../utils/parse-url"
 
 interface VerifyRequestPageProps {
   url: InternalUrl
@@ -11,15 +11,17 @@ export default function VerifyRequestPage(props: VerifyRequestPageProps) {
 
   return (
     <div className="verify-request">
-      { theme.brandColor && <style
-        dangerouslySetInnerHTML={{
-          __html: `
+      {theme.brandColor && (
+        <style
+          dangerouslySetInnerHTML={{
+            __html: `
         :root {
           --brand-color: ${theme.brandColor}
         }
       `,
-        }}
-      /> }
+          }}
+        />
+      )}
       {theme.logo && <img src={theme.logo} alt="Logo" className="logo" />}
       <div className="card">
         <h1>Check your email</h1>

packages/next-auth/src/core/routes/callback.ts

@@ -2,19 +2,19 @@ import oAuthCallback from "../lib/oauth/callback"
 import callbackHandler from "../lib/callback-handler"
 import { hashToken } from "../lib/utils"
 
-import type { InternalOptions } from "../../lib/types"
-import type { IncomingRequest, OutgoingResponse } from ".."
+import type { InternalOptions } from "../types"
+import type { RequestInternal, OutgoingResponse } from ".."
 import type { Cookie, SessionStore } from "../lib/cookie"
 import type { User } from "../.."
 
 /** Handle callbacks from login services */
 export default async function callback(params: {
   options: InternalOptions<"oauth" | "credentials" | "email">
-  query: IncomingRequest["query"]
-  method: Required<IncomingRequest>["method"]
-  body: IncomingRequest["body"]
-  headers: IncomingRequest["headers"]
-  cookies: IncomingRequest["cookies"]
+  query: RequestInternal["query"]
+  method: Required<RequestInternal>["method"]
+  body: RequestInternal["body"]
+  headers: RequestInternal["headers"]
+  cookies: RequestInternal["cookies"]
   sessionStore: SessionStore
 }): Promise<OutgoingResponse> {
   const { options, query, body, method, headers, sessionStore } = params

packages/next-auth/src/core/routes/providers.ts

@@ -1,5 +1,5 @@
-import { OutgoingResponse } from ".."
-import { InternalProvider } from "../../lib/types"
+import type { OutgoingResponse } from ".."
+import type { InternalProvider } from "../types"
 
 export interface PublicProvider {
   id: string

packages/next-auth/src/core/routes/session.ts

@@ -1,7 +1,7 @@
 import { fromDate } from "../lib/utils"
 
 import type { Adapter } from "../../adapters"
-import type { InternalOptions } from "../../lib/types"
+import type { InternalOptions } from "../types"
 import type { OutgoingResponse } from ".."
 import type { Session } from "../.."
 import type { SessionStore } from "../lib/cookie"

packages/next-auth/src/core/routes/signin.ts

@@ -1,14 +1,14 @@
 import getAuthorizationUrl from "../lib/oauth/authorization-url"
 import emailSignin from "../lib/email/signin"
-import { IncomingRequest, OutgoingResponse } from ".."
-import { InternalOptions } from "../../lib/types"
-import { Account, User } from "../.."
+import type { RequestInternal, OutgoingResponse } from ".."
+import type { InternalOptions } from "../types"
+import type { Account, User } from "../.."
 
 /** Handle requests to /api/auth/signin */
 export default async function signin(params: {
   options: InternalOptions<"oauth" | "email">
-  query: IncomingRequest["query"]
-  body: IncomingRequest["body"]
+  query: RequestInternal["query"]
+  body: RequestInternal["body"]
 }): Promise<OutgoingResponse> {
   const { options, query, body } = params
   const { url, adapter, callbacks, logger, provider } = options

packages/next-auth/src/core/routes/signout.ts

@@ -1,5 +1,5 @@
 import type { Adapter } from "../../adapters"
-import type { InternalOptions } from "../../lib/types"
+import type { InternalOptions } from "../types"
 import type { OutgoingResponse } from ".."
 import type { SessionStore } from "../lib/cookie"
 

packages/next-auth/src/core/types.ts

@@ -1,10 +1,21 @@
 import type { Adapter } from "../adapters"
-import type { Provider, CredentialInput, ProviderType } from "../providers"
+import type {
+  Provider,
+  CredentialInput,
+  ProviderType,
+  OAuthConfig,
+  EmailConfig,
+  CredentialsConfig,
+} from "../providers"
 import type { TokenSetParameters } from "openid-client"
 import type { JWT, JWTOptions } from "../jwt"
-import type { LoggerInstance } from "../lib/logger"
+import type { LoggerInstance } from "../utils/logger"
 import type { CookieSerializeOptions } from "cookie"
 
+import type { NextApiRequest, NextApiResponse } from "next"
+
+import type { InternalUrl } from "../utils/parse-url"
+
 export type Awaitable<T> = T | PromiseLike<T>
 
 export type { LoggerInstance }
@@ -106,7 +117,7 @@ export interface NextAuthOptions {
    * * **Required**: *No*
    *
    * [Documentation](https://next-auth.js.org/configuration/options#adapter) |
-   * [Community adapters](https://github.com/nextauthjs/adapters)
+   * [Adapters Overview](https://next-auth.js.org/adapters/overview)
    */
   adapter?: Adapter
   /**
@@ -471,3 +482,71 @@ export interface DefaultUser {
  * [`profile` OAuth provider callback](https://next-auth.js.org/configuration/providers#using-a-custom-provider)
  */
 export interface User extends Record<string, unknown>, DefaultUser {}
+
+// Below are types that are only supposed be used by next-auth internally
+
+/** @internal */
+export type InternalProvider<T extends ProviderType = any> = (T extends "oauth"
+  ? OAuthConfig<any>
+  : T extends "email"
+  ? EmailConfig
+  : T extends "credentials"
+  ? CredentialsConfig
+  : never) & {
+  signinUrl: string
+  callbackUrl: string
+}
+
+export type NextAuthAction =
+  | "providers"
+  | "session"
+  | "csrf"
+  | "signin"
+  | "signout"
+  | "callback"
+  | "verify-request"
+  | "error"
+  | "_log"
+
+/** @internal */
+export interface InternalOptions<T extends ProviderType = any> {
+  providers: InternalProvider[]
+  /**
+   * Parsed from `NEXTAUTH_URL` or `x-forwarded-host` on Vercel.
+   * @default "http://localhost:3000/api/auth"
+   */
+  url: InternalUrl
+  action: NextAuthAction
+  provider: T extends string
+    ? InternalProvider<T>
+    : InternalProvider<T> | undefined
+  csrfToken?: string
+  csrfTokenVerified?: boolean
+  secret: string
+  theme: Theme
+  debug: boolean
+  logger: LoggerInstance
+  session: Required<SessionOptions>
+  pages: Partial<PagesOptions>
+  jwt: JWTOptions
+  events: Partial<EventCallbacks>
+  adapter?: Adapter
+  callbacks: CallbacksOptions
+  cookies: CookiesOptions
+  callbackUrl: string
+}
+
+/** @internal */
+export interface NextAuthRequest extends NextApiRequest {
+  options: InternalOptions
+}
+
+/** @internal */
+export type NextAuthResponse<T = any> = NextApiResponse<T>
+
+/** @internal */
+// eslint-disable-next-line @typescript-eslint/no-invalid-void-type
+export type NextAuthApiHandler<Result = void, Response = any> = (
+  req: NextAuthRequest,
+  res: NextAuthResponse<Response>
+) => Awaitable<Result>

packages/next-auth/src/index.ts

@@ -1,6 +1,6 @@
 export * from "./core/types"
 
-export type { IncomingRequest, OutgoingResponse } from "./core"
+export type { RequestInternal, OutgoingResponse } from "./core"
 
 export * from "./next"
 export { default } from "./next"

packages/next-auth/src/lib/types.ts

@@ -1,90 +0,0 @@
-import type { NextApiRequest, NextApiResponse } from "next"
-
-import type {
-  CallbacksOptions,
-  CookiesOptions,
-  EventCallbacks,
-  LoggerInstance,
-  PagesOptions,
-  SessionOptions,
-  Theme,
-  Awaitable,
-} from ".."
-
-import type {
-  OAuthConfig,
-  EmailConfig,
-  CredentialsConfig,
-  ProviderType,
-} from "../providers"
-import type { JWTOptions } from "../jwt"
-import type { Adapter } from "../adapters"
-import { InternalUrl } from "./parse-url"
-
-// Below are types that are only supposed be used by next-auth internally
-
-/** @internal */
-export type InternalProvider<T extends ProviderType = any> = (T extends "oauth"
-  ? OAuthConfig<any>
-  : T extends "email"
-  ? EmailConfig
-  : T extends "credentials"
-  ? CredentialsConfig
-  : never) & {
-  signinUrl: string
-  callbackUrl: string
-}
-
-export type NextAuthAction =
-  | "providers"
-  | "session"
-  | "csrf"
-  | "signin"
-  | "signout"
-  | "callback"
-  | "verify-request"
-  | "error"
-  | "_log"
-
-/** @internal */
-export interface InternalOptions<T extends ProviderType = any> {
-  providers: InternalProvider[]
-  /**
-   * Parsed from `NEXTAUTH_URL` or `x-forwarded-host` on Vercel.
-   * @default "http://localhost:3000/api/auth"
-   */
-  url: InternalUrl
-  action: NextAuthAction
-  provider: T extends string
-    ? InternalProvider<T>
-    : InternalProvider<T> | undefined
-  csrfToken?: string
-  csrfTokenVerified?: boolean
-  secret: string
-  theme: Theme
-  debug: boolean
-  logger: LoggerInstance
-  session: Required<SessionOptions>
-  pages: Partial<PagesOptions>
-  jwt: JWTOptions
-  events: Partial<EventCallbacks>
-  adapter?: Adapter
-  callbacks: CallbacksOptions
-  cookies: CookiesOptions
-  callbackUrl: string
-}
-
-/** @internal */
-export interface NextAuthRequest extends NextApiRequest {
-  options: InternalOptions
-}
-
-/** @internal */
-export type NextAuthResponse<T = any> = NextApiResponse<T>
-
-/** @internal */
-// eslint-disable-next-line @typescript-eslint/no-invalid-void-type
-export type NextAuthApiHandler<Result = void, Response = any> = (
-  req: NextAuthRequest,
-  res: NextAuthResponse<Response>
-) => Awaitable<Result>

packages/next-auth/src/next/index.ts

@@ -1,5 +1,6 @@
 import { NextAuthHandler } from "../core"
-import { setCookie, detectHost } from "./utils"
+import { detectHost } from "../utils/detect-host"
+import { setCookie } from "./utils"
 
 import type {
   GetServerSidePropsContext,
@@ -11,7 +12,7 @@ import type {
   NextAuthAction,
   NextAuthRequest,
   NextAuthResponse,
-} from "../lib/types"
+} from "../core/types"
 
 async function NextAuthNextHandler(
   req: NextApiRequest,
@@ -66,7 +67,7 @@ function NextAuth(
   options: NextAuthOptions
 ): any
 
-/** Tha main entry point to next-auth */
+/** The main entry point to next-auth */
 function NextAuth(
   ...args:
     | [NextAuthOptions]
@@ -82,26 +83,33 @@ function NextAuth(
 
 export default NextAuth
 
-export async function getServerSession(
-  context:
-    | GetServerSidePropsContext
-    | { req: NextApiRequest; res: NextApiResponse },
-  options: NextAuthOptions
+export async function unstable_getServerSession(
+  ...args:
+    | [GetServerSidePropsContext['req'], GetServerSidePropsContext['res'], NextAuthOptions]
+    | [NextApiRequest, NextApiResponse, NextAuthOptions]
 ): Promise<Session | null> {
+  console.warn(
+    "[next-auth][warn][EXPERIMENTAL_API]",
+    "\n`unstable_getServerSession` is experimental and may be removed or changed in the future, as the name suggested.",
+    `\nhttps://next-auth.js.org/configuration/nextjs#unstable_getServerSession}`,
+    `\nhttps://next-auth.js.org/warnings#EXPERIMENTAL_API`
+    )
+
+  const [req, res, options] = args;
   const session = await NextAuthHandler<Session | {}>({
     options,
     req: {
-      host: detectHost(context.req.headers["x-forwarded-host"]),
+      host: detectHost(req.headers["x-forwarded-host"]),
       action: "session",
       method: "GET",
-      cookies: context.req.cookies,
-      headers: context.req.headers,
+      cookies: req.cookies,
+      headers: req.headers,
     },
   })
 
   const { body, cookies } = session
 
-  cookies?.forEach((cookie) => setCookie(context.res, cookie))
+  cookies?.forEach((cookie) => setCookie(res, cookie))
 
   if (body && Object.keys(body).length) return body as Session
   return null

packages/next-auth/src/next/middleware.ts

@@ -5,7 +5,7 @@ import type { JWT, JWTOptions } from "../jwt"
 import { NextResponse, NextRequest } from "next/server"
 
 import { getToken } from "../jwt"
-import parseUrl from "../lib/parse-url"
+import parseUrl from "../utils/parse-url"
 
 type AuthorizedCallback = (params: {
   token: JWT | null
@@ -25,9 +25,9 @@ export interface NextAuthMiddlewareOptions {
   /**
    * You can override the default cookie names and options for any of the cookies
    * by this middleware. Similar to `cookies` in `NextAuth`.
-   * 
+   *
    * Useful if the token is stored in not a default cookie.
-   * 
+   *
    * ---
    * [Documentation](https://next-auth.js.org/configuration/options#cookies)
    *
@@ -36,11 +36,16 @@ export interface NextAuthMiddlewareOptions {
    * You should **try to avoid using advanced options** unless you are very comfortable using them.
    *
    */
-  cookies?: Partial<Record<keyof Pick<keyof NextAuthOptions["cookies"], "sessionToken">, Omit<CookieOption, "options">>>
+  cookies?: Partial<
+    Record<
+      keyof Pick<keyof NextAuthOptions["cookies"], "sessionToken">,
+      Omit<CookieOption, "options">
+    >
+  >
 
   /**
    * If a custom jwt `decode` method is set in `[...nextauth].ts`, the same method should be set here also.
-   * 
+   *
    * ---
    * [Documentation](https://next-auth.js.org/configuration/nextjs#custom-jwt-decode-method)
    */
@@ -109,7 +114,7 @@ async function handleMiddleware(
   const token = await getToken({
     req,
     decode: options?.jwt?.decode,
-    cookieName: options?.cookies?.sessionToken?.name
+    cookieName: options?.cookies?.sessionToken?.name,
   })
 
   const isAuthorized =
@@ -120,7 +125,10 @@ async function handleMiddleware(
 
   // the user is not logged in, redirect to the sign-in page
   const signInUrl = new URL(signInPage, req.nextUrl.origin)
-  signInUrl.searchParams.append("callbackUrl", `${req.nextUrl.pathname}${req.nextUrl.search}`)
+  signInUrl.searchParams.append(
+    "callbackUrl",
+    `${req.nextUrl.pathname}${req.nextUrl.search}`
+  )
   return NextResponse.redirect(signInUrl)
 }
 

packages/next-auth/src/next/utils.ts

@@ -13,11 +13,3 @@ export function setCookie(res, cookie: Cookie) {
   setCookieHeader.push(cookieHeader)
   res.setHeader("Set-Cookie", setCookieHeader)
 }
-
-/** Extract the host from the environment */
-export function detectHost(forwardedHost: any) {
-  // If we detect a Vercel environment, we can trust the host
-  if (process.env.VERCEL) return forwardedHost
-  // If `NEXTAUTH_URL` is `undefined` we fall back to "http://localhost:3000"
-  return process.env.NEXTAUTH_URL
-}

packages/next-auth/src/providers/credentials.ts

@@ -1,4 +1,4 @@
-import type { IncomingRequest } from "../core"
+import type { RequestInternal } from "../core"
 import type { CommonProviderOptions } from "."
 import type { User, Awaitable } from ".."
 
@@ -16,7 +16,7 @@ export interface CredentialsConfig<
   credentials: C
   authorize: (
     credentials: Record<keyof C, string> | undefined,
-    req: Pick<IncomingRequest, "body" | "query" | "headers" | "method">
+    req: Pick<RequestInternal, "body" | "query" | "headers" | "method">
   ) => Awaitable<(Omit<User, "id"> | { id?: string }) | null>
 }
 

packages/next-auth/src/providers/instagram.js

@@ -35,6 +35,9 @@ export default function Instagram(options) {
     token: "https://api.instagram.com/oauth/access_token",
     userinfo:
       "https://graph.instagram.com/me?fields=id,username,account_type,name",
+    client: {
+      token_endpoint_auth_method: 'client_secret_post',
+    },
     async profile(profile) {
       return {
         id: profile.id,

packages/next-auth/src/react/index.tsx

@@ -9,8 +9,8 @@
 // We use HTTP POST requests with CSRF Tokens to protect against CSRF attacks.
 
 import * as React from "react"
-import _logger, { proxyLogger } from "../lib/logger"
-import parseUrl from "../lib/parse-url"
+import _logger, { proxyLogger } from "../utils/logger"
+import parseUrl from "../utils/parse-url"
 import { Session } from ".."
 import {
   BroadcastChannel,
@@ -175,7 +175,7 @@ export async function getProviders() {
 export async function signIn<
   P extends RedirectableProviderType | undefined = undefined
 >(
-  provider?: LiteralUnion<BuiltInProviderType>,
+  provider?: LiteralUnion<P extends RedirectableProviderType ? P | BuiltInProviderType : BuiltInProviderType>,
   options?: SignInOptions,
   authorizationParams?: SignInAuthorizationParams
 ): Promise<

packages/next-auth/src/utils/detect-host.ts

@@ -0,0 +1,7 @@
+/** Extract the host from the environment */
+export function detectHost(forwardedHost: any) {
+  // If we detect a Vercel environment, we can trust the host
+  if (process.env.VERCEL) return forwardedHost
+  // If `NEXTAUTH_URL` is `undefined` we fall back to "http://localhost:3000"
+  return process.env.NEXTAUTH_URL
+}

packages/next-auth/tests/assert.test.ts

@@ -0,0 +1,43 @@
+import { handler } from "./lib"
+
+it("Show error page if secret is not defined", async () => {
+  const { res, log } = await handler(
+    { providers: [], secret: undefined },
+    { prod: true }
+  )
+
+  expect(res.status).toBe(500)
+  expect(res.html).toMatch(/there is a problem with the server configuration./i)
+  expect(res.html).toMatch(/check the server logs for more information./i)
+
+  expect(log.error).toBeCalledWith("NO_SECRET", expect.anything())
+})
+
+it("Should show configuration error page on invalid `callbackUrl`", async () => {
+  const { res, log } = await handler(
+    { providers: [] },
+    { prod: true, params: { callbackUrl: "invalid-callback" } }
+  )
+
+  expect(res.status).toBe(500)
+  expect(res.html).toMatch(/there is a problem with the server configuration./i)
+  expect(res.html).toMatch(/check the server logs for more information./i)
+
+  expect(log.error).toBeCalledWith(
+    "INVALID_CALLBACK_URL_ERROR",
+    expect.anything()
+  )
+})
+
+it("Allow relative `callbackUrl`", async () => {
+  const { res, log } = await handler(
+    { providers: [] },
+    { prod: true, params: { callbackUrl: "/callback" } }
+  )
+
+  expect(res.status).not.toBe(500)
+  expect(log.error).not.toBeCalledWith(
+    "INVALID_CALLBACK_URL_ERROR",
+    expect.anything()
+  )
+})

packages/next-auth/tests/lib.ts

@@ -0,0 +1,49 @@
+import type { LoggerInstance, NextAuthOptions } from "../src"
+import { NextAuthHandler } from "../src/core"
+
+export async function handler(
+  options: NextAuthOptions,
+  {
+    prod,
+    path,
+    params,
+  }: {
+    prod?: boolean
+    path?: string
+    params?: URLSearchParams | Record<string, string>
+  }
+) {
+  // @ts-ignore
+  if (prod) process.env.NODE_ENV = "production"
+
+  const mockLogger: LoggerInstance = {
+    error: jest.fn(),
+    warn: jest.fn(),
+    debug: jest.fn(),
+  }
+  const url = new URL(
+    `http://localhost/api/auth/${path ?? "signin"}?${new URLSearchParams(
+      params ?? {}
+    )}`
+  )
+  const req = new Request(url, {
+    headers: {
+      host: "",
+    },
+  })
+  const response = await NextAuthHandler({
+    req,
+    options: { secret: "secret", ...options, logger: mockLogger },
+  })
+  // @ts-ignore
+  if (prod) process.env.NODE_ENV = "test"
+
+  return {
+    res: {
+      ...response,
+      html:
+        response.headers?.[0].value === "text/html" ? response.body : undefined,
+    },
+    log: mockLogger,
+  }
+}

packages/next-auth/tsconfig.json

@@ -14,7 +14,8 @@
     "stripInternal": true,
     "skipDefaultLibCheck": true,
     "baseUrl": ".",
-    "outDir": "."
+    "outDir": ".",
+    
   },
-  "exclude": ["./*.js", "./*.d.ts", "config", "**/__tests__"]
+  "exclude": ["./*.js", "./*.d.ts", "config", "**/__tests__", "tests"]
 }