# Incoming webhooks format

The most basic type of webhook that most people work with is message webhooks. Messages can be text or with an attachment, such as a picture or location. You can receive all this on your webhook server in real time as soon as this event occurs.

These are examples of webhooks for various events:

* [Incoming message](/help-desk/receiving/webhooks/incoming-webhooks-format/incoming-message.md)*(all types of messages)*
* [Sent message](/help-desk/receiving/webhooks/incoming-webhooks-format/sent-message.md)
* [Chats](/help-desk/receiving/webhooks/incoming-webhooks-format/chats.md)
* [Groups](/help-desk/receiving/webhooks/incoming-webhooks-format/groups.md)
* [Communities](/help-desk/receiving/webhooks/incoming-webhooks-format/communities.md)
* [Contacts](/help-desk/receiving/webhooks/incoming-webhooks-format/contacts.md)
* [Account and device status](/help-desk/receiving/webhooks/incoming-webhooks-format/account-and-device-status.md)
* [Presences](/help-desk/receiving/webhooks/incoming-webhooks-format/other/presences.md)
* [Views of stories (statuses)](/help-desk/receiving/webhooks/incoming-webhooks-format/other/views-of-stories-statuses.md)
* [Calls](/help-desk/receiving/webhooks/incoming-webhooks-format/other/calls.md)
* [Labels](/help-desk/receiving/webhooks/incoming-webhooks-format/other/labels.md)

## How do I check if callbacks are being sent from a channel?

Especially for this purpose, we offer you a special endpoint that allows you to simulate any callback on any event. Thus, you can check if your link is available for our API, as well as see the format of the callback itself.

{% embed url="<https://whapi.readme.io/reference/webhooktest>" %}
Emulates a test callback to your link
{% endembed %}


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