personal-site/pages/api/test-route.ts

import { NextApiHandler, NextApiRequest, NextApiResponse } from "next";
import Cors from "cors";

const cors = Cors({
    methods: ["GET"],
    origin: "*",
});

// Helper method to wait for a middleware to execute before continuing
// And to throw an error when an error happens in a middleware
function runMiddleware(
    req: NextApiRequest,
    res: NextApiResponse,
    fn: Function
) {
    return new Promise((resolve, reject) => {
        fn(req, res, (result: any) => {
            if (result instanceof Error) {
                return reject(result);
            }

            return resolve(result);
        });
    });
}

export default async function handler(
    req: NextApiRequest,
    res: NextApiResponse
) {
    res.setHeader("Access-Control-Allow-Credentials", "true");
    res.setHeader("Access-Control-Allow-Origin", "*");
    res.setHeader(
        "Access-Control-Allow-Methods",
        "GET,OPTIONS,PATCH,DELETE,POST,PUT"
    );
    res.setHeader(
        "Access-Control-Allow-Headers",
        "X-CSRF-Token, X-Requested-With, Accept, Accept-Version, Content-Length, Content-MD5, Content-Type, Date, X-Api-Version"
    );

    res.json({
        title: "Hello There",
        message: "General Kenobi",
    });
}