NOTE: You are looking at documentation for an older release. For the latest information, see the current release documentation.
When a watch is triggered, its input loads data into the execution context. This payload is accessible during the subsequent watch execution phases. For example, you can base a watch’s condition on the data loaded by its input.
Watcher supports four input types:
If you don’t define an input for a watch, an empty payload is loaded into the execution context.