Node.js API Masterclass with Express and MongoDB - Rate Limiting, HPP & CORS

The video tutorial covers implementing rate limiting and protection against HTTP parameter pollution using Express middleware. It demonstrates setting up express-rate-limit and HPP packages, testing rate limits, and enabling CORS for cross-domain requests. The tutorial concludes with a discussion on finalizing the API and planning for documentation using Postman and DocGen.

What is the purpose of implementing rate limiting in an API?

• To increase the speed of requests

• To control the number of requests within a time frame

• To allow unlimited access to the API

• To enhance the visual appearance of the API

How does HTTP parameter pollution pose a risk to an API?

• It increases the cost of API maintenance

• It makes the API more user-friendly

• It allows attackers to manipulate request parameters

• It can slow down the server

Which package is used to implement rate limiting in Express?

• express-session

• express-cors

• express-rate-limit

• express-validator

What is the main benefit of enabling CORS in a Node.js application?

• To allow requests from different domains

• To improve server performance

• To restrict access to the API

• To enhance data encryption

Which tool is mentioned for creating API documentation?

• Swagger

• Postman

• JSDoc

• TypeDoc

What is the purpose of using DocGen in API development?

• To test API endpoints

• To optimize database queries

• To generate HTML files from documentation

• To secure the API

Why is API documentation important for public APIs?

• It helps users understand and use the API effectively

• It increases the API's execution speed

• It reduces the need for server resources

• It allows for unlimited data storage