(will be removed after 0.210.0) Import from std/http/unstable_server_sent_event.ts instead.

An event which contains information which will be sent to the remote connection and be made available in an EventSource as an event. A server creates new events and dispatches them on the target which will then be sent to a client.

See more about Server-sent events on MDN

Example

import {
ServerSentEvent,
ServerSentEventStreamTarget,
} from "https://deno.land/std@0.205.0/http/server_sent_event.ts";

Deno.serve({ port: 8000 }, (request) => {
const target = new ServerSentEventStreamTarget();
const evt = new ServerSentEvent("message", {
data: { hello: "world" },
id: 1
});
target.dispatchEvent(evt);
return target.asResponse();
});