MQTT-Client-Framework

an Objective-C native MQTT Framework http://mqtt.org

Tested with a long list of brokers

mosquitto
paho
rabbitmq
hivemq
rsmb
mosca
vernemq
emqtt
moquette
ActiveMQ
Apollo
CloudMQTT
aws
hbmqtt (MQTTv311 only, limitations)
aedes

As a CocoaPod

Use the CocoaPod MQTTClient!

Add this to your Podfile:

pod 'MQTTClient'

which is a short for

pod 'MQTTClient/Min'
pod 'MQTTClient/Manager'

The Manager subspec includes the MQTTSessionManager class.

Additionally add this subspec if you want to use MQTT over Websockets:

pod 'MQTTClient/Websocket'

If you want to do your logging with CocoaLumberjack (my suggestion), use

pod 'MQTTClient/MinL'
pod 'MQTTClient/ManagerL'
pod 'MQTTClient/WebsocketL'

instead.

As a dynamic library

Or use the dynamic library created in the MQTTFramework target.

As source

Or include the source from here.

With Carthage

Carthage

docs

Documentation generated with doxygen http://doxygen.org in the ./MQTTClient/dist/documentation subdirectory.

Here is the PDF.

You may open the HTML version of the documentation here index.html

Run make install in the ./MQTTClient/dist/documentation/html subdirectory to install the the documentation as a DOCSET on your Mac.

Usage

Create a new client and connect to a broker:

#import "MQTTClient.h"

\@interface MyDelegate : ... <MQTTSessionDelegate>
...

        MQTTCFSocketTransport *transport = [[MQTTCFSocketTransport alloc] init];
        transport.host = @"localhost";
        transport.port = 1883;

        MQTTSession *session = [[MQTTSession alloc] init];
        session.transport = transport;
        
	session.delegate = self;

	[session connectAndWaitTimeout:30];  //this is part of the synchronous API

Subscribe to a topic:

[session subscribeToTopic:@"example/#" atLevel:2 subscribeHandler:^(NSError *error, NSArray<NSNumber *> *gQoss){
    if (error) {
        NSLog(@"Subscription failed %@", error.localizedDescription);
    } else {
        NSLog(@"Subscription sucessfull! Granted Qos: %@", gQoss);
    }
 }]; // this is part of the block API

Add the following to receive messages for the subscribed topics

 - (void)newMessage:(MQTTSession *)session
	data:(NSData *)data
	onTopic:(NSString *)topic
	qos:(MQTTQosLevel)qos
	retained:(BOOL)retained
	mid:(unsigned int)mid {
	// this is one of the delegate callbacks
}

Publish a message to a topic:

[session publishAndWaitData:data
                    onTopic:@"topic"
                     retain:NO
	                qos:MQTTQosLevelAtLeastOnce]; // this is part of the asynchronous API

Comparison MQTT Clients for iOS (incomplete)

Wrapper	---	----	MQTTKit	Marquette	Moscapsule	Musqueteer	MQTT-Client	MqttSDK	CocoaMQTT
			Obj-C	Obj-C	Swift	Obj-C	Obj-C	Obj-C	Swift
Library	IBM	Paho	Mosquitto	Mosquitto	Mosquitto	Mosquitto	native	native	native

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