> For the complete documentation index, see [llms.txt](https://docs.ondiagram.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.ondiagram.com/nodes/request.md).

# Request

## General

The `Request` node is used to receive any HTTP request (GET, POST, PUT, DELETE etc). It parses the data as headers, params and body and passes them on for further processing.

{% hint style="info" %}
 The `Request` node is a special node that is required for all requests and cannot be deleted.
{% endhint %}

## Input

* The `Request` node has no input.

## Output

* **Headers:** Returns an `Object` with the specified HTTP request header fields (case-insensitive match). Learn more on [req.get](http://expressjs.com/en/api.html#req.get).
* **Params:** Returns an `Object` containing properties mapped to the named route "parameters". For example, if you have the route \`/user/:name\`, then the "name" property is available as \`req.query.name\`. Learn more on [req.query](http://expressjs.com/en/api.html#req.query).
* **Body:** returns an `Object` containing key-value pairs of data submitted in the request body. Returns a \`String\` if **rawBody** is true and request type is not \`Get\`. Learn more on [req.body](http://expressjs.com/en/api.html#req.body).

## Use Cases

Call an external API parse and process the response.

* Request (Get) ➡ Webhook ➡ Script ➡ Response (200)

Receive data from a request and save the to the database.

* Request (Post) ➡ Database ➡ Response (200)