Hello World

The Hello World function is a simple function that returns the string "Hello [name]!", where [name] is either the value provided in the name query parameter for a GET request or the value provided in the name field of the request body for a POST request.

The function uses the event and context parameters and logs them to the console. It handles both GET and POST requests and returns a JSON response with a message field containing the personalized greeting.

The source code for the function:

import type { VercelRequest, VercelResponse } from '@vercel/node'

export default function handler(req: VercelRequest, res: VercelResponse) {
  const { name = 'World' } = req.query
  return res.json({
    message: `Hello ${name}!`,
  })
}

Check the source code on GitHub.

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