Request Headers in REST API

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HTTP headers are key-value pairs that can be used to provide additional information about a request or response in an HTTP message. In a REST API, headers are often used to provide information about the request or response, such as the format of the data being sent or received, the type of authentication being used, and so on.

Here are some common headers that you might see in a REST API:

Content-Type: This header specifies the format of the request or response body, such as application/json for JSON data or application/xml for XML data.

This header specifies the format of the request or response body. For example, the following header specifies that the request body is in JSON format:

Content-Type: application/json

Accept: This header specifies the format of the data that the client is willing to receive in the response, such as application/json or application/xml.This header specifies the format of the data that the client is willing to receive in the response. For example, the following header specifies that the client will accept a response in either JSON or XML format:

Accept: application/json, application/xml

Authorization: This header is used to provide authentication credentials, such as an API key or a token. The specific format of the credentials will depend on the authentication scheme being used. This header is used to provide authentication credentials. For example, the following header uses the basic authentication scheme to provide a username and password

Authorization: Basic dXNlcjpwYXNzd29yZA==

Cache-Control: This header is used to specify caching behavior for the response, such as whether the response can be cached and for how long.This header is used to specify caching behavior for the response. For example, the following header specifies that the response should not be cached.

Cache-Control: no-cache