Node.js API Masterclass with Express and MongoDB - Advanced Filtering

The video tutorial covers advanced query features in web development, focusing on filtering, selecting fields, and pagination. It demonstrates how to use query parameters in Postman and Express, handle requests, and implement advanced filtering using Mongoose operators. The tutorial also includes testing and validating queries, as well as sorting and filtering by specific fields and arrays.

What is the first step in adding query parameters in Postman?

• Use a question mark (?) to start the query

• Use a colon (:) to start the query

• Use an ampersand (&) to start the query

• Use a semicolon (;) to start the query

How can you access query parameters in an Express application?

• Using request.headers

• Using request.query

• Using request.body

• Using request.params

What is required to use Mongoose operators like LTE in a query?

• An exclamation mark (!) before the operator

• A dollar sign ($) before the operator

• A hash sign (#) before the operator

• A percentage sign (%) before the operator

Which of the following is a Mongoose operator for greater than?

• LT

• GT

• GTE

• LTE

What method is used to replace parts of a query string in JavaScript?

• String.update()

• String.replace()

• String.change()

• String.modify()

What is the purpose of using JSON.stringify in query manipulation?

• To validate JSON data

• To parse a string into JSON

• To convert an object to a string

• To convert a string to an object

How can you test if a query with average cost filtering works correctly?

• By verifying the number of results returned

• By ensuring no results are returned

• By checking if the query string is empty

• By checking if the server crashes

What is the purpose of adding a slash G at the end of a regular expression?

• To limit the search to the first match

• To ignore whitespace in the string

• To search globally in the string

• To make the search case-sensitive

What operator allows searching within arrays in a query?

• The 'in' operator

• The 'contains' operator

• The 'array' operator

• The 'within' operator

What is the next topic to be covered after advanced filtering?

• Selecting specific fields and sorting

• Error handling in queries

• Pagination techniques

• Database indexing