By default, the request path or parameters are included in event. A function invokes APIG using its event template. You can obtain the request path or parameters from the function execution result.
Example:
You can call an API using its request path. Example: https://464d86ec641d45a683c5919ac57f3823.apig.projectID.com/apig-demo/subpath
Alternatively, you can call an API by adding request parameters. Example:
https://464d86ec641d45a683c5919ac57f3823.apig.projectID.com/apig-demo/subpath?a=1&b=2