Vercel Serverless functions

https://vercel.com/docs/concepts/functions/serverless-functionsDecember 6, 2021

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Basic example
- With JavaScript
- With TypeScript
Enabling CORS

Basic example

With JavaScript

// /api/test.js
const handler = (request, response) => {
  response.status(200).json({
    body: request.body,
    query: request.query,
    cookies: request.cookies,
  })
};

export default handler;

With TypeScript

// /api/test.ts
import { VercelApiHandler } from './types';

const handler: VercelApiHandler = (request, response) => {
  response.status(200).json({
    body: request.body,
    query: request.query,
    cookies: request.cookies,
  })
};

export default handler;

Enabling CORS

vercel.com/support/...ble-cors

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