---
title: "Link’nX HTTP action: send a GET request from a scenario"
description: Create an HTTP action in Link’nX to call the command URL of a device or service with GET from a scenario, and fix a URL rejected by the form.
canonical: https://wiki.can-nx.com/en/guides/link-action-http/
language: en
product: Link’nX
audience:
  - administrateur
  - installateur
context: "Link’nX web: HTTP action form, URL field"
---

# Link’nX HTTP action: send a GET request from a scenario

Context: Link’nX web: HTTP action form, URL field

A Link’nX HTTP action issues a **GET** request to the command URL of a piece of equipment or a service when it is executed, by a scenario or by a manual run. It is meant for outgoing commands; to receive a call that triggers a Link’nX scenario, use the [HTTP trigger](https://wiki.can-nx.com/en/guides/link-trigger-http/).

Intended for administrators and installers who have the command URL of a piece of equipment or a service they are authorized to use.

## Before you start

- You have the full command URL provided for your equipment or service, with its HTTP or HTTPS prefix.
- This command is intended for a GET request. The form does not offer a choice of method, a request body or separate authentication fields.

## Create the HTTP action

1. Open **Actions**, then click **Add**.
2. Choose **HTTP** in **Select an action type**.
3. Fill in **Name**: required, 64 characters maximum, not made only of spaces.
4. In **URL**, paste the full command address, with its HTTP or HTTPS prefix and no space before it.
5. Click the floppy disk at the bottom right. After **Success!**, find the action in the list.

To edit it later and confirm the affected scenarios, follow the [action save guide](https://wiki.can-nx.com/en/guides/link-action-edit/).

## Use the action

- To automate it, [add the action to the scenario](https://wiki.can-nx.com/en/guides/link-compose-scenario/).
- A [manual run](https://wiki.can-nx.com/en/guides/link-run/) immediately requests the URL call and can act on the equipment or service: keep it for a deliberate test whose effect you know.

## Check the result

**Success!** confirms that the action is saved. To check that the recipient is reachable and executes the command, perform a controlled test and watch the equipment or service.

## Troubleshooting

| Message | Action |
| --- | --- |
| **Issue with the field 'URL'. It requires a value.** | Fill in the full URL: an empty field or one made of spaces is not suitable. |
| **Issue 'URL' incorrect. Incorrect format.** | Check the HTTP or HTTPS prefix and that there is no space at the start. |

For other blockages, follow the [action troubleshooting](https://wiki.can-nx.com/en/guides/link-action-help/). If the command requires another HTTP method or a specific authentication, or if the equipment does not react after a controlled test, contact support@can-nx.com stating the context, the type of service, the message and the expected result. Do not share a URL containing a secret, a token or credentials, either in writing or in a screenshot.