Route handlers for webhooks in NextJS - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is a webhook in web development?

A webhook is a way for an app to provide other applications with real-time information. It sends data automatically when an event happens, like a notification.

beginner

In Next.js, where do you place route handlers for webhooks?

You place route handlers inside the app directory under a folder named after the route, using a file named route.js or route.ts for the handler code.

intermediate

How do you define a POST route handler for a webhook in Next.js 14+?

You export an async function named POST from the route.js file. This function receives the request and returns a response.

intermediate

Why should webhook route handlers verify the request origin?

To ensure the request is from a trusted source and prevent unauthorized or malicious calls to your webhook endpoint.

beginner

What is a common response status code to send after successfully processing a webhook?

A 200 OK status code is commonly sent to acknowledge the webhook was received and processed successfully.

In Next.js route handlers, which function name handles POST requests for webhooks?

A onPost

B getWebhook

C POST

D handlePost

Next.js expects an exported async function named POST to handle POST requests in route handlers.

Where should you place a webhook route handler in Next.js 14+?

A pages/api/webhook.js

B components/webhook.js

C public/webhook.js

D app/webhook/route.js

Next.js 14+ uses the app directory with route.js files for route handlers, so app/webhook/route.js is correct.

What is the main reason to verify webhook requests?

A To prevent unauthorized access

B To speed up the server

C To improve UI design

D To reduce bandwidth

Verifying webhook requests ensures only trusted sources can trigger your webhook, improving security.

Which HTTP status code usually indicates a webhook was processed successfully?

A 200 OK

B 500 Internal Server Error

C 404 Not Found

D 302 Redirect

200 OK signals the webhook was received and handled without errors.

What type of function should you export in Next.js route handlers for webhooks?

A A synchronous function

B An async function

C A class method

D A React component

Route handlers should export async functions to handle asynchronous operations like reading request bodies.

Explain how to create a POST route handler for a webhook in Next.js 14+ and why verifying the request is important.

Think about the file location, function name, and security checks.

Describe the typical response a webhook route handler should send after processing a request successfully.

Focus on status codes and why the sender needs confirmation.