Create discord.js

api/discord.js

@@ -0,0 +1,31 @@
+const express = require('express');
+const fetch = require('node-fetch');
+const btoa = require('btoa');
+const { catchAsync } = require('../utils');
+
+const router = express.Router();
+
+const CLIENT_ID = ' your app id ';
+const CLIENT_SECRET = ' your app secret ';
+const redirect = encodeURIComponent(' callback url (normally "http://localhost:50451/api/discord/callback" for example) ');
+
+router.get('/login', (req, res) => {
+  res.redirect(`https://discordapp.com/oauth2/authorize?client_id=${CLIENT_ID}&scope=guilds%20identify&response_type=code&redirect_uri=${redirect}`);
+});
+
+router.get('/callback', catchAsync(async (req, res) => {
+    if (!req.query.code) throw new Error('NoCodeProvided');
+    const code = req.query.code;
+    const creds = btoa(`${CLIENT_ID}:${CLIENT_SECRET}`);
+    const response = await fetch(`https://discordapp.com/api/oauth2/token?grant_type=authorization_code&code=${code}&redirect_uri=${redirect}`,
+      {
+        method: 'POST',
+        headers: {
+          Authorization: `Basic ${creds}`,
+        },
+      });
+    const json = await response.json();
+    res.redirect(`/s/?token=${json.access_token}`);
+  }));
+
+module.exports = router;