# Header

## Description

Header can be read on Action, which will be received as part of the client request.

## Example use case

* **Content Negotiation**: The "Accept" header allows the client to specify the media types it can understand, enabling the server to send an appropriate response format. For instance, a client can request JSON or XML data based on its capabilities.
* **User-Agent Information**: The "User-Agent" header provides information about the client's software, enabling the server to tailor the response according to the capabilities or constraints of the client.
* **Tracking and Analytics**: Clients can send headers containing tracking information or analytics data, helping the server collect insights about how its resources are being used.

## How to use

1. Open the **Header** tab.
2. For each Action and Method, Headers can be added, edited or deleted.
3. The following fields are available:
   * **Type**: HTTP Header to read from (example: `Content-Type`)
   * **Value**: Default value of the header if the client request doesn't provide one (example: `application/json`) ![](https://489318254-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FKpIso420Eq6T1MZWmK3R%2Fuploads%2Fgit-blob-c33f73acbe3bb07c8f0d8c96aeca5f05c246fa88%2FHeader-view.png?alt=media)