RunEngine.subscribe(func, name='all')[source]

Register a callback function to consume documents.

Changed in version 0.10.0: The order of the arguments was swapped and the name argument has been given a default value, 'all'. Because the meaning of the arguments is unambiguous (they must be a callable and a string, respectively) the old order will be supported indefinitely, with a warning.

func: callable

expecting signature like f(name, document) where name is a string and document is a dict

name{‘all’, ‘start’, ‘descriptor’, ‘event’, ‘stop’}, optional

the type of document this function should receive (‘all’ by default)


an integer ID that can be used to unsubscribe