# # Triggers

> Triggers allow you to activate Flows on just about any conceivable internal or external event, including any in-app activities, incoming webhooks, cron jobs, Operations in other Flows, or the manual click of a button in the Directus App.

- Event Hook
- Webhook
- Schedule
- Another Flow
- Manual

Before You Begin

Please be sure to read the documentation on Flows.

## # Event Hook

Event Hooks are triggered by platform or data events. The logic is based on Custom API Hooks. If your event generates data, this will be stored in the Flow Object.

- Type — Choose the type of Event Hook:
  - Filter (Blocking) — Fires "blocking" right before the database transaction is committed, allowing you to tweak the payload or prevent completion outright.
  - Action (Non-Blocking) — Does not block anything. Therefore, a non-blocking action is mostly useful for completing tasks in response to an event, without slowing down the API.
- Scope — Set the specific events that trip this Trigger.
- Collections — Set the Collections that trip this Trigger.
- Response Body — Send Data for the last Operation, all Flow Object data, or the Flow key.

## # Webhook

Triggers on an incoming HTTP request to: `/flows/trigger/:this-webhook-trigger-id`.

- Method — Choose to make a GET, POST, PATCH, DELETE or other request from the dropdown.
- Asynchronous — Toggle whether or not the Trigger responds asynchronously.
- Response Body — Choose to send Data of last Operation, all Flow Object data, or some other key from the Flow object.

## # Schedule

This Trigger enables you to create Data at scheduled intervals, via 6-point cron job syntax.

- Interval — Set the cron job interval to schedule when the Flow triggers.

## # Another Flow

This Trigger executes a Flow via the Trigger Flow Operation, allowing you to chain Flows together.

- Response Body — Select data to return in the response to the Trigger Flow.

## # Manual

This Trigger starts your Flow on a manual click of a button within the Directus App. When you use this Trigger, a Flows menu containing a button will appear in the Sidebar of the specified Collection Page(s) and/or Item Pages, based on your Location configuration.

- Collections — Choose the Collection(s) to add the Button to.
- Location — Choose to add the button into the Item Page, Collection Page, or both.
- Asynchronous — Toggle whether or not the Flow executes asynchronously.