Checks whether the input can be handled by this class. If it cannot handle the input, rejects with an error explaining why.
Input that could potentially be handled.
A promise resolving if the input can be handled, rejecting with an Error if not.
Handles the given input. This may only be called if canHandle did not reject. When unconditionally calling both in sequence, consider handleSafe instead.
Input that needs to be handled.
A promise resolving when handling is finished.
Helper function that first runs canHandle followed by handle. Throws the error of canHandle if the data cannot be handled, or returns the result of handle otherwise.
Input data that will be handled if it can be handled.
A promise resolving if the input can be handled, rejecting with an Error if not.
This handler will pass all requests to the wrapped handler, until a specific value has been set in the given storage. After that all input will be rejected. Once the value has been matched this behaviour will be cached, so changing the value again afterwards will not enable this handler again.
If
handleStorageis set totrue, this handler will set the value itself in the given storage after the source handler successfully resolved.