Fetching Products from the Database

The video tutorial guides viewers through organizing Express.js routes by creating a separate routes folder and file, integrating Mongoose models to fetch data from a database, and implementing error handling using async middleware. It also covers testing API endpoints with Postman, ensuring the server is running correctly and handling errors gracefully. The tutorial emphasizes the importance of clean code organization and error management in backend development.

Why is it beneficial to separate routes into different files in a Node.js application?

• To increase the execution speed of the application

• To make the code more organized and maintainable

• To allow multiple developers to work on the same file

• To reduce the number of dependencies

What is the purpose of using the 'express.Router()' method?

• To connect to a database

• To define a new route handler

• To create a new server instance

• To create a modular, mountable route handler

How does the 'find' method in Mongoose help in fetching data?

• It creates a new document in the database

• It retrieves data based on the provided query

• It deletes data from the database

• It updates the data in the database

What is the role of the 'express-async-handler' middleware?

• To handle synchronous errors

• To log all requests to the console

• To manage exceptions in asynchronous routes

• To optimize database queries

Which command is used to install the 'express-async-handler' package?

• npm install async-express

• npm install async-handler

• npm install express-async-handler

• npm install express-handler

What should you do if you encounter a 'Product not found' error while testing an API endpoint?

• Verify the product ID in the request URL

• Check if the server is running

• Reinstall the application

• Restart the database

Why is Postman used in testing API endpoints?

• To manage database migrations

• To deploy applications to the cloud

• To simulate client requests and test API responses

• To write server-side code