Authentication with Auth.js

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Auth.js is the most widely used authentication library for JavaScript. Its framework-agnostic core is built on the Web standard Request and Response, so it drops straight into Deno.serve. This wires up GitHub sign-in; Auth.js serves all its routes (sign-in, callback, session, sign-out) under /auth. Set AUTH_SECRET (run `deno run -A npm:@auth/core` or `openssl rand -hex 32`), GITHUB_CLIENT_ID, and GITHUB_CLIENT_SECRET.

import { Auth } from "npm:@auth/core";
import GitHub from "npm:@auth/core/providers/github";

const config = {

trustHost is needed outside managed platforms like Vercel.

  trustHost: true,
  secret: Deno.env.get("AUTH_SECRET"),
  providers: [
    GitHub({
      clientId: Deno.env.get("GITHUB_CLIENT_ID"),
      clientSecret: Deno.env.get("GITHUB_CLIENT_SECRET"),
    }),
  ],
};

Auth() takes a Request and returns a Response, so it is the whole handler. Visit http://localhost:8000/auth/signin to start the flow.

Deno.serve((req) => Auth(req, config));

Run this example locally using the Deno CLI:

deno run -N -E https://docs.deno.com/examples/scripts/authjs_github.ts

Authentication with Auth.js

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