Introduction

Brief overview of MQTT (Message Queuing Telemetry Transport) and its use in real-time communication.

Explain the importance of real-time updates in web applications.

Setting Up MQTT

Explanation of MQTT and its components (broker, client, topics).

Instructions on how to set up an MQTT broker (e.g., Mosquitto) and configure a client.

Step-1

Create a JavaScript file (e.g., mqtt-client.js) and define functions for connecting to the MQTT broker and publishing messages.

Path like public/mqtt-client.js

​
$(document).ready(function() {

    //Initialize MQTT Client and Connect to Broker

    var client = mqtt.connect("wss://test.mosquitto.org:8081", {
        clientId: "client-" + Math.floor(Math.random() * 10),
        protocolId: "MQTT",
        protocolVersion: 4,
        clean: true,
        reconnectPeriod: 10000,
    });
    var topic = 'test/mqtt; // Replace with your MQTT topic
    var message = 'Hello, MQTT from browser!';


    client.on("connect", function() {
        console.log("Connected to MQTT broker.");
        client.subscribe("test/yash", function(err) {
            if (!err) {
                console.log("Subscribed to topic.");
            }
        });
    });


    $(".mqttpublish").click(function() {
        client.publish(topic, message, function(err) {
            if (!err) {
                console.log('Message published successfully.');
            } else {
                console.error('Failed to publish message:', err);
            }
        });
    });

    //subscribe your mqtt message


    client.on("message", function(topic, message) {
        console.log(message);
    });

    client.on("error", function(err) {
        console.error("Error:", err);
    });
});

​

Step-2

Include MQTT Client in Laravel Blade View: In your Blade view file (e.g., mqtt.blade.php), include the MQTT client JavaScript file and create a button to publish a message.

MQTT Integration

MQTT Integration

Make sure you have the mqtt library included in your project. You can include it using a script tag if you're working in a browser, or using a package manager like npm if you're working in a Node.js environment.

Step-3

Route to the Blade View: In your Laravel routes file (web.php), define a route to access the MQTT Blade view.

Route::get('/mqtt', function () {
return view('mqtt');
});

Conclusion:

By following these steps, you can implement real-time updates in your web application using MQTT and enhance the user experience by delivering dynamic and live content based on subscribed topics.