# hap link
An hap link refers to a URI starting with hap://
supported in the router module. For usage scenarios, refer to Page Routing.
Currently, supported hap links start with hap://app/
and support opening specified JS applications. The format is as follows:
hap://app/<package>/[path][?key=value]
Parameter description:
- package: The application package name (required)
- path: The path to the page within the application (optional, defaults to the homepage)
- key-value: Parameters to be passed to the page (optional, multiple parameters can be included)