EventSource.onmessage

The onmessage property of the EventSource interface is an event handler called when a message event is received, that is when a message is coming from the source.

Event objects of onmessage event handlers are of type MessageEvent.

Syntax

eventSource.onmessage = function

Examples

evtSource.onmessage = function(e) {
  var newElement = document.createElement("li");

  newElement.textContent = "message: " + e.data;
  eventList.appendChild(newElement);
}

Note: You can find a full example on GitHub — see Simple SSE demo using PHP.

Specifications

Specification
HTML Standard (HTML)
# handler-eventsource-onmessage

Browser compatibility

BCD tables only load in the browser

See also