Nodejs: Callback/Webhook URL

What is a callback URL in the context of Node.js?

• A URL used for serving static files

• A URL that triggers a callback process

• A URL reserved for handling HTTP GET requests

• A URL pointing to the Node.js documentation

What is the purpose of using a callback URL in OAuth authentication?

• To handle errors during authentication

• To provide a URL for user login

• To receive authentication tokens and user information

• To define a custom login page for the application

What security consideration should be taken into account when handling callback URLs in Node.js?

• Using plain HTTP for callback URLs

• Validating and verifying callback URL parameters

• Allowing arbitrary redirects

• Storing callback URLs in plaintext in the database

Which HTTP method is commonly used with callback URLs in Payment Integration requests?

• GET

• POST

• DELETE

• PUT

What is the purpose of a callback function in the context of handling HTTP requests in Node.js?

• To handle errors in the application

• To define custom middleware for routing

• To execute asynchronous tasks upon request completion

• To terminate the HTTP server

Which Node.js module is commonly used for handling HTTP requests and creating callback URLs?

• express

• http

• url

• callback-handler

Which HTTP status code is commonly used to indicate a successful callback URL response?

• 200 OK

• 201 Created

• 204 No Content

• 304 Found

What security consideration is important when dealing with callback URLs?

• Embedding sensitive data directly in the callback URL

• Using plain HTTP instead of HTTPS for callback URLs

• Making callback URLs publicly accessible

• Ensuring callback URLs are hard to guess

In the context of webhooks, what is the purpose of a callback URL?

• To serve as a user authentication endpoint

• To handle asynchronous notifications from external services

• To store user profiles

• To redirect users after successful login

How can a Node.js application handle errors during the processing of callback URLs

• By redirecting users to a generic error page

• By logging errors and notifying administrators

• By displaying the error directly in the callback response

• By ignoring errors and continuing execution