authorize.ts

import { VercelRequest, VercelResponse } from '@vercel/node';
import {uuid} from "uuidv4";
import * as queryString from "query-string";
/**
 * GH Env Vars
 */
const CLIENT_SECRET = process.env.CLIENT_SECRET;
const CLIENT_ID = process.env.CLIENT_ID;
const SCOPE_STR = process.env.SCOPE_STR;
const SERVER_CALLBACK_URL_BASE = process.env.SERVER_CALLBACK_URL_BASE;
const FINAL_CALLBACK_URL_BASE = process.env.FINAL_CALLBACK_URL_BASE;

export default (_req: VercelRequest, res: VercelResponse) => {
    const state = uuid();

    const queryParams = queryString.stringify({
        client_id: CLIENT_ID,
        redirect_uri: `${SERVER_CALLBACK_URL_BASE}/callback`,
        scope: SCOPE_STR,
        state,
    });

    res.redirect(`https://github.com/login/oauth/authorize?${queryParams}`);
};