> For the complete documentation index, see [llms.txt](https://brandonescamilla.gitbook.io/flight-computer-with-xdk/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://brandonescamilla.gitbook.io/flight-computer-with-xdk/firmware/c.md).

# C

{% hint style="info" %}
**Prerequisites**

* XDK workbench installed --> [Download it](https://xdk.bosch-connectivity.com/software-downloads) 
* Basic C/C++
* Knowledge of how REST Api works
  {% endhint %}

In this part we are going to see how to send XDK data, basically the XDK will send a POST request to our [server](/flight-computer-with-xdk/backend/untitled.md) that we have already mounted, so what we need is just to find the way to send this data via HTTP in json format.