# Instant trigger (webhook) There is nothing to configure in this module except the interface. The data processing is handled by a selected [webhook](https://developers.make.com/custom-apps-documentation/app-components/webhooks). ## Components ### Communication * [Communication](https://developers.make.com/custom-apps-documentation/component-blocks/api) 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](https://developers.make.com/custom-apps-documentation/component-blocks/interface) is generated with each incoming webhook. ### Samples To help the users with setting up your module, provide [samples](https://developers.make.com/custom-apps-documentation/component-blocks/samples). ### 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 %}