> For the complete documentation index, see [llms.txt](https://developers.make.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developers.make.com/custom-apps-documentation/app-components/modules/instant-trigger.md). # Instant trigger (webhook) The instant trigger is executed immediately when the data arrives to Make. There is nothing to configure in this module except the interface. The data processing is handled by a selected [webhook](/custom-apps-documentation/app-components/webhooks.md). ## Components ### Communication * [Communication](/custom-apps-documentation/component-blocks/api.md) is only optional in the instant trigger. * It can be used for retrieving additional data. * The `iterate` directive is not available. * The `pagination` directive is not available. * Only a single request can be performed. #### Retrieving additional data for each bundle If you need to retrieve additional data for each bundle, describe a request to execute for each bundle of the webhook {% tabs %} {% tab title="Source" %} ```json { "url": "http://example.com/api/item/{{payload.id}}", "response": { "output": { "id": "{{payload.id}}", "data": "{{body}}" } } } ``` {% endtab %} {% endtabs %} ### Interface Exactly [one bundle](/custom-apps-documentation/component-blocks/interface.md) is generated with each incoming webhook. ### Samples To help the users with setting up your module, provide [samples](/custom-apps-documentation/component-blocks/samples.md). ### Available IML variables These IML variables are available for you to use everywhere in this module:

Variable	Description
`now`	Current date and time
`environment`	TBD
`temp`	Contains custom variables created via the `temp` directive.
`parameters`	Contains the module’s input parameters.
`connection`	Contains the connection’s data collection.
`common`	Contains the app’s common data collection.
`data`	Contains the module’s data collection.
`scenario`	TBD
`metadata.expect`	Contains the module’s raw parameters array in the way you have specified it in the configuration.
`metadata.interface`	Contains module’s raw interface array in the way you have specified it in the configuration.

Additional variables available for the response object:

Variable	Description
`output`	When using the `wrapper` directive, the `output` variable represents the result of the `output`directive.

Additional variables available after using the `iterate` directive, i.e. in `wrapper` or `pagination` directives:

Variable	Description
`iterate.container.first`	Represents the first item of the array you iterated.
`iterate.container.last`	Represents the last item of the array you iterated.

Additional variables available for pagination and response objects:

Variable	Description
`body`	Contains the body that was retrieved from the last request.
`headers`	Contains the response headers that were retrieved from the last request.
`items`	When iterating this variable represents the current item that is being iterated.

Additional variables available in the instant trigger:

Variable	Description
`payload`	Represents the current webhook item that is being processed.

## Example {% tabs %} {% tab title="Appearance" %}

{% endtab %} {% tab title="Communication" %} ```json {} ``` {% endtab %} {% tab title="Static parameters" %} ```json [] ``` {% endtab %} {% tab title="Interface" %} ```json [ { "name": "id", "type": "uinteger", "label": "User ID" }, { "name": "email", "type": "email", "label": "Email address" }, { "name": "name", "type": "text", "label": "Name" }, { "name": "created", "type": "date", "label": "Date created" } ] ``` {% endtab %} {% tab title="Samples" %} ```json { "id": 1, "email": "johndoe@email.com", "name": "John Doe", "created": "2018-01-01T12:00:00.000Z" } ``` {% endtab %} {% endtabs %}