Implemented server sent events

scripts/ServerEvents.ts

@@ -0,0 +1,26 @@
+class ServerEvent {
+	data: string
+}
+
+export default class ServerEvents {
+	supported: boolean
+	eventSource: EventSource
+
+	constructor() {
+		this.supported = ("EventSource" in window)
+
+		if(!this.supported) {
+			return
+		}
+
+		this.eventSource = new EventSource("/api/sse/events", {
+			withCredentials: true
+		})
+
+		this.eventSource.addEventListener("ping", (e: any) => this.ping(e))
+	}
+
+	ping(e: ServerEvent) {
+		console.log("sse: ping")
+	}
+}