How to publish a message to rabbitmq using Mocha framework - rabbitmq

Question

Hi i'm unable to figure out how to connect to rabbitmq using Mocha & chai framework.
I've installed rabbitmq & erlang on my local & trying to connect to rabbitmq by starting the server on local.
The code i'm using is as below:
var chai = require('chai');
var chaiHttp = require('chai-http');
var request = chai.request;
var should = chai.should();
var expect = chai.expect;
var assert = chai.assert;
var supertest = require('supertest');
var fs = require('fs');
var amqp = require('amqplib/callback_api');
//Plugin for HTTP, etc.
chai.use(chaiHttp);
process.env['NODE_TLS_REJECT_UNAUTHORIZED'] = '0';
describe("Testing RabbitMQ : ", function () {
it("Send a message : ", function (done) {
amqp.connect('amqp://localhost:15672/', function (err, conn) {
conn.createChannel(function (err, ch) {
var q = 'hello';
ch.assertQueue(q, { durable: false });
// Note: on Node 6 Buffer.from(msg) should be used
ch.sendToQueue(q, new Buffer('Hello World!'));
console.log(" [x] Sent 'Hello World!'");
});
setTimeout(function () { conn.close(); process.exit(0) }, 500);
});
done();
});
it("Receive a message", function (done) {
amqp.connect('amqp://localhost:15672/', function (err, conn) {
conn.createChannel(function (err, ch) {
var q = 'hello';
ch.assertQueue(q, { durable: false });
console.log(" [*] Waiting for messages in %s. To exit press CTRL+C", q);
ch.consume(q, function (msg) {
console.log(" [x] Received %s", msg.content.toString());
}, { noAck: true });
});
});
done();
});
})
So is there any other way to connect to rabbitmq & publish a message?
I've tried with amqp library, any sample code for connecting to rabbitmq will be helpful.
Can anyone make me understand how to connect to a specific queue to send a message, where the message can be published.
Any help would be really appreciated. Thank you.

Answer 1

You are specifying the wrong port. The default amqp port is 5672. If you are not changing the default port then you don't need to specify the port in amqp server url. That is instead of amqp://localhost:15672/, you can simply specify the url as amqp://localhost. I would like to give a working program for How to publish a message to rabbitmq using Mocha framework?.
I run the RabbitMQ server in my system using docker
docker run -d --hostname rabbit1 --name rabbit1 -e RABBITMQ_ERLANG_COOKIE=rabbitcluster -p 30000:5672 -p 30001:15672 rabbitmq:management
Then
// test.js
var chai = require('chai')
var amqp = require('amqplib/callback_api');
var chaiHttp = require('chai-http')
var should = chai.should()
chai.use(chaiHttp);
var config={
protocol: 'amqp',
hostname: 'localhost',
port: 30000,
username: 'guest',
password: 'guest',
}
var q="ex.queue";
var msg = "Hello World!";
describe('Testing RabbitMQ',function(){
it('Sending Message to RabbitMQ Server',function(done){
amqp.connect(config, function(err, conn) {
if(err){
console.log("connection error");
return;
}
conn.createConfirmChannel(function(err, ch) {
if(err){
return;
}
ch.assertQueue(q, {durable: true});
ch.sendToQueue(q, new Buffer(msg), {persistent: true},
function(err){
if(err){
console.log("msg resend err==>",err);
return;
}
else{
console.log(" [x] reSent '%s'", msg);
}
});
});
done();
setTimeout(function() { conn.close();}, 500);
});
});
});