Make `eventKey` default to "message" if not specified

@remix-sse/client

Changes the API for useSubscribe to make an eventKey default to 'message'

Using the library myself in a few projects, I have found that I don't usually need to send multiple events from the same emitter, and one eventKey usually suffices. This change will make it more ergonomic for single event emitters, while remaining flexible for multi event emitters

How to migrate

--- const data = useSubscribe('/emitter', 'event-key')
+++ const data = useSubscribe('/emitter', { eventKey: 'event-key'})

Or if you want use the default eventKey: 'message' you can omit it entirely

const data = useSubscribe('/emitter')

@remix-sse/server

Changes the API of the EventStream send function to make the eventKey default to 'message'

How to migrate

The first argument of send is now just the data string you wish to send.

If you want to allow multiple events from the same emitter you can specify an eventKey in the second argument
Otherwise you can just omit the eventKey all together

export const loader: LoaderFunction = ({ request }) => { return new EventStream(request, (send) => { let gIndex = 0; let g = setInterval(() => { gIndex += 1; --- send('message', JSON.stringify({ hello: 'world', index: gIndex })); +++ send(JSON.stringify({ hello: 'world', index: gIndex })); }, 1000);

return async () => {
  clearInterval(g);
};

}); };

dan-cooke / remix-sse