Building and Deploying Serverless Applications with

NextJS and Vercel

functions, optimize performance and scalability, and monitor your application’s performance with real-time analytics.

Utilizing Vercel’s Serverless Functions

Vercel’s serverless functions offer a powerful way to enhance your NextJS application with server-side functionality, without the need for a separate back-end server. In this section, we’ll explore how to create and deploy serverless functions using Vercel, as well as how to integrate them with your NextJS application.

● Creating a Serverless Function

To create a serverless function, simply add a new file to the pages/api directory in your NextJS project. The file should export a default function with the following signature: export default async function handler(req, res) {

// Your serverless function code here }

● The handler function receives two arguments req, an object representing the incoming request, and res, an object used to send the response. You can use these objects to read input data, perform calculations or data processing, and send output back to the client.

● Deploying Your Serverless Function