Hook

Defines an interface for extensions.

Hooks are placeholders in a flowchart where custom logic can be plugged in without modifying the flowchart itself. Instead, users can create an Extension flowchart and define the custom business logic there.
It enables product teams to create and distribute a Flow as part of a standard product, while allowing customers to extend its functionality without breaking the standard implementation.

You can also use Hooks and Hook handlers to split a large Flow into smaller flowcharts.

To implement the business logic of a Hook, use a Hook handler in an Extension flowchart, and define the business logic there.

In the example below, the actions are executed in the following order:

flowchart LR
MainAction1[Main action 1] --> CustomBusinessLogic[Custom business logic] --> MainAction2[Main action 2]

Hooks and Hook handlers are simply control flow routing mechanisms, and does not do any actual work.

Properties

Name	Data type	Description
Title	Optional	The title or name of the action.
Name	Required	The unique identifier of the Hook.
Parameters	Optional	A list of inputs required for the Hook.