receiver.js

require("dotenv").config();
const amqp = require("amqplib/callback_api");

amqp.connect("amqp://" + process.env.RABBITMQ_URL, function(err, conn) {
  conn.createChannel(function(err, ch) {
    var ex = "posts";

    ch.assertExchange(ex, "fanout", { durable: false });

    ch.assertQueue("", { exclusive: true }, function(err, q) {
      console.log(
        " [*] Waiting for messages in %s. To exit press CTRL+C",
        q.queue
      );
      ch.bindQueue(q.queue, ex, "");

      ch.consume(q.queue, function(msg) {
        ch.ack(msg);
        console.log(" [x] %s", msg.content.toString());
      });
    });
  });
});