Android project added

- Android can now send messages over RabbitMQ to the backend.

backend/lib/rabbit.ts

@@ -0,0 +1,21 @@
+import * as amqp from 'amqplib';
+import { logger, RABBITMQ_URI } from '../app';
+
+export class RabbitMQ {
+    connection: amqp.Connection | null = null;
+    channel: amqp.Channel | null = null;
+
+    async init() {
+        this.connection = await amqp.connect(RABBITMQ_URI);
+        this.channel = await this.connection.createChannel();
+
+        this.channel.consume('Tracker', (msg) => {
+            logger.debug("Received from broker: " + msg?.content.toString());
+        }, { noAck: false });
+    }
+
+    async publish(queueName = 'Tracker', data: any) {
+        if (this.connection == undefined) await this.init()
+        this.channel?.sendToQueue(queueName, Buffer.from(data));
+    }
+}