# Overview of a POST request

The following example explains the raw POST request as it is sent to Connector.ashx:

```javascript
POST  /WebServices/Connector.ashx HTTP/1.1
Host: <>
Content-type: application/x-www-form-urlencoded
Content-length: <<length_of_data>>
Connection: close
```

Several parameter should be added to the request to make it more specific. Which parameters to use depend on the desired action.

| Parameter  | Value                                                                                        |
| ---------- | -------------------------------------------------------------------------------------------- |
| Username   | An existing user in Ultimo (Id) with authorisation to execute connectors                     |
| Password   | Password of the above user                                                                   |
| Action     | <p>'export' when retrieving data from Ultimo</p><p>'import' when changing data in Ultimo</p> |
| ExportName | Required when action is 'export'. Id of the export connector.                                |
| ImportName | Required when action is 'import'. Id of the import connector.                                |


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://developer.ultimo.net/api-guide/http-post/http-post-overview-of-a-post-request.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.