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API Reference

Constructor​

var sse = new SSE(url, settings);

Parameters​

  • url: URL for the server that will send the events to this page
  • settings: The events and options for the SSE instance

Settings Object​

The settings object can contain the following properties:

var sseObject = new SSE('sse-server.php', {
    onOpen: function (e) {},
    onEnd: function (e) {},
    onError: function (e) {},
    onMessage: function (e) {},
    options: {},
    headers: {},
    events: {}
});

Methods​

start()​

Start the EventSource communication.

sse.start();

Returns: true if started successfully, false if already running

Example:

var sse = new SSE('http://example.com/sse-server.php', {
    onMessage: function(e) {
        console.log(e.data);
    }
});
sse.start();

stop()​

Stop the EventSource communication.

sse.stop();

Returns: true if stopped successfully, false if not running

Example:

sse.stop();

Event Object Structure​

When an event is received, the event object contains the following properties:

  • data: The message data from the server
  • lastEventId: The last event ID received
  • origin: The origin URL of the response
  • returnValue: Boolean indicating the event was processed