feat: added event and event handler

server/src/config/eventEmitter.ts

@@ -0,0 +1,5 @@
+import { EventEmitter } from "events";
+
+class DomainEventEmitter extends EventEmitter {}
+
+export const domainEventEmitter = new DomainEventEmitter();

server/src/event/ttnMessageReceivedEvent.ts

@@ -0,0 +1,14 @@
+export const TtnMessageReceivedEventName = "TtnMessageReceived";
+export type TtnMessageReceivedEvent = {
+  lp_ttn_end_device_uplinks_id: string;
+  wifis: {
+    mac: string;
+    rssi: number;
+  }[];
+  ttnGateways: {
+    rssi: number;
+    latitude: number;
+    longitude: number;
+    altitude: number;
+  }[];
+};

server/src/eventHandler/ttnMessageReceivedEventHandler.ts

@@ -0,0 +1,13 @@
+import { domainEventEmitter } from "../config/eventEmitter";
+import {
+  TtnMessageReceivedEvent,
+  TtnMessageReceivedEventName,
+} from "../event/ttnMessageReceivedEvent";
+
+domainEventEmitter.on(
+  TtnMessageReceivedEventName,
+  async (event: TtnMessageReceivedEvent) => {
+    console.log(event);
+    // TODO Hendrik 🚀
+  }
+);

server/src/index.ts

@@ -1,6 +1,7 @@
 import dotenv from "dotenv";
 import express from "express";
 import "reflect-metadata";
+import "./eventHandler/ttnMessageReceivedEventHandler";
 const cors = require("cors");
 
 import locationRoutes from "./controller/locationController";