Request object properties in Node.js - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is the req.url property in a Node.js request object?

It contains the full URL string of the incoming request, including the path and query string but excluding the domain.

beginner

Explain the purpose of req.method in a Node.js request object.

It shows the HTTP method used by the client, such as GET, POST, PUT, or DELETE, indicating the type of action requested.

beginner

What does req.headers represent in a Node.js request object?

It is an object containing all the HTTP headers sent by the client, like content-type, user-agent, and authorization.

intermediate

How is req.body used in Node.js request handling?

It holds the data sent by the client in the request body, often used with POST or PUT requests to receive form data or JSON.

intermediate

What information does req.params provide in a Node.js request object?

It contains route parameters extracted from the URL path, useful for dynamic routes like '/user/:id' to get the 'id' value.

Which property of the Node.js request object contains the HTTP method used by the client?

A req.headers

B req.url

C req.method

D req.body

req.method holds the HTTP method like GET or POST.

Where would you find the query string parameters in a Node.js request object?

A req.url

B req.params

C req.body

D req.headers

The req.url includes the path and query string.

Which property contains the headers sent by the client?

A req.headers

B req.params

C req.method

D req.body

req.headers is an object with all HTTP headers.

If you want to access data sent in a POST request's body, which property do you use?

A req.params

B req.method

C req.url

D req.body

req.body holds the data sent in the request body.

How do you access dynamic route parameters like '/user/:id' in Node.js?

A req.body

B req.params

C req.headers

D req.url

req.params contains route parameters extracted from the URL.

Describe the main properties of the Node.js request object and what each one is used for.

Think about what information the server needs from the client request.

Explain how you would access data sent by a client in the URL path, query string, headers, and body using the request object.

Each part of the request has a specific property in the request object.