Request headers (Content-Type, Accept) in Rest API - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is the purpose of the Content-Type header in an HTTP request?

The Content-Type header tells the server the format of the data being sent in the request body, such as application/json or text/html.

beginner

What does the Accept header specify in an HTTP request?

The Accept header tells the server what content types the client can handle in the response, like application/json or text/html.

beginner

If a client sends Content-Type: application/json, what does it mean?

It means the client is sending data in JSON format in the request body, so the server should read it as JSON.

intermediate

Why is it important to set the Accept header correctly?

Setting the Accept header correctly helps the server send back data in a format the client understands, avoiding errors or confusion.

intermediate

What happens if the Content-Type header is missing in a POST request?

The server might not know how to interpret the request body, which can cause errors or unexpected behavior.

What does the Content-Type header in an HTTP request specify?

A The HTTP method used

B The format of the data the client wants to receive

C The server's IP address

D The format of the data sent in the request body

The Content-Type header tells the server the format of the data sent in the request body.

Which header tells the server what response formats the client can accept?

A Accept

B Authorization

C Content-Type

D User-Agent

The Accept header specifies the content types the client can handle in the response.

If a client wants JSON data back from the server, what should the Accept header be set to?

A application/json

B text/plain

C multipart/form-data

D text/html

Setting Accept: application/json tells the server the client wants JSON data.

What might happen if the Content-Type header is incorrect or missing when sending JSON data?

A The client automatically fixes the header

B The client will receive an error immediately

C The server may not parse the data correctly

D The server ignores the request

Without the correct Content-Type, the server may not understand the data format.

Which header would you use to tell the server you are sending form data?

A Accept: application/x-www-form-urlencoded

B Content-Type: application/x-www-form-urlencoded

C Accept: multipart/form-data

D Content-Type: text/plain

The Content-Type header should be set to application/x-www-form-urlencoded when sending form data.

Explain the roles of the Content-Type and Accept headers in an HTTP request.

Think about sending and receiving data formats.

Describe what could go wrong if the Content-Type header is missing or incorrect in a POST request.

Consider how the server reads the data you send.