addEventType abstract method
Adds the given event
type to the stream for listening.
After adding the event
, all further instances of that event that are
sent by the server will be emitted by this stream. You can use
ServerSentEvent.event
to find out which data belongs to which event type
when processing them.
Calling this function multiple times for the same event
does nothing.
You can listen to multiple different event
s at the same time.
To remove an added event, you can use removeEventType.
Implementation
void addEventType(String event);