Node.js API Masterclass with Express and MongoDB - Aggregate - Calculating the Average Course Cost

The video tutorial covers calculating the average course tuition for boot camps, preparing the database, implementing middleware and static methods using Mongoose, and testing the implementation with Postman. It also introduces future tasks like image upload and authentication.

What feature allows searching bootcamps by location?

• Authentication

• Filtering

• Geocoding

• Pagination

What was the first step in preparing the database for dynamic course cost calculation?

• Adding new courses

• Removing hardcoded average costs

• Implementing authentication

• Uploading photos

What is the purpose of middleware in the course model?

• To manage photo uploads

• To calculate average course costs

• To deploy the application

• To handle user authentication

How does a static method differ from a regular method in Mongoose?

• It is called on an instance of the model

• It is called on the model itself

• It is used for authentication

• It is used for file uploads

What is the main function of the aggregation method in this context?

• To paginate results

• To filter bootcamps

• To calculate average course costs

• To upload images

What tool was used to test the API functionality?

• Mongoose

• VS Code

• Postman

• Compass

What is the purpose of using Math.ceil in the context of average cost calculation?

• To round down the average cost

• To ensure the average cost is an integer

• To convert the cost to a string

• To calculate the total cost

What is the next feature to be implemented after calculating average costs?

• User authentication

• Image upload functionality

• Bootcamp deletion

• Course filtering

Which library will be used for image uploads?

• Mongoose

• Express file upload

• Postman

• JavaScript Math

What is the default photo name for bootcamps?

• Sample photo

• Placeholder

• Default image

• No photo JPEG