MQTT / Kakfa Connect Using Confluent

Download local confluent:

https://docs.confluent.io/platform/current/quickstart/cos-quickstart.html

Install Kafka Connect:

confluent-hub install confluentinc/kafka-connect-mqtt:latest

Start Kafka Connect and dependencies (Kafka, Zookeeper, Schema Registry):

confluent local services start

Create and deploy MQTT Connector Instance

curl -s -X POST -H 'Content-Type: application/json' http://localhost:8083/connectors -d '{
    "name" : "mqtt-source",
"config" : {
    "connector.class" : "io.confluent.connect.mqtt.MqttSourceConnector",
    "tasks.max" : "1",
    "mqtt.server.uri" : "tcp://127.0.0.1:1883",
    "mqtt.topics" : "temperature",
    "kafka.topic" : "mqtt.temperature",
    "confluent.topic.bootstrap.servers": "localhost:9092",
    "confluent.topic.replication.factor": "1",
    "confluent.license":""
    }
}'

Check connector is running: curl -s "http://localhost:8083/connectors" curl -s "http://localhost:8083/connectors/mqtt-source/status"

Create kafka topic: kafka-topics --create --bootstrap-server localhost:9092 --replication-factor 1 --partitions 1 --topic mqtt.temperature

Start MQTT Subscriber & Kafka Consumer

go build main.go ./main

Start sensor generator script

chmod 755 sensor-generator.sh ./sensor-generator.sh