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Groovy mqtt client bluemix IoT services
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@Grab(group='org.eclipse.paho', module='mqtt-client', version='0.4.0') | |
import org.eclipse.paho.client.mqttv3.* | |
import org.eclipse.paho.client.mqttv3.persist.MqttDefaultFilePersistence | |
String tmpDir = System.getProperty("java.io.tmpdir") | |
MqttDefaultFilePersistence dataStore = new MqttDefaultFilePersistence("${tmpDir}/mqtt") | |
//org | |
String org = 'myOrg' | |
//type | |
String deviceType = 'groovy' | |
String deviceId = 'gc001' | |
// auth-token | |
def authToken = 'theauthtoken'.toCharArray() | |
String mqttHost = "tcp://${org}.messaging.internetofthings.ibmcloud.com:1883" | |
String userName = 'use-token-auth' | |
String hardcodedSimpleEventJson = '{"event": { "id": "123", "source": "myDevice123", "timestamp": "2015-06-22T08:00:01", "text": "A simple event", "location" : "drm3btev3e86" }}' | |
String clientId = "d:${org}:${deviceType}:${deviceId}" | |
int AT_LEAST_ONCE_QOS = 0 | |
MqttClient client = new MqttClient(mqttHost, clientId, dataStore) | |
MqttConnectOptions connectOptions = new MqttConnectOptions( cleanSession: true, userName: userName, password: authToken ) | |
println "Connecting to: ${mqttHost}" | |
client.connect(connectOptions) | |
MqttMessage message = new MqttMessage(hardcodedSimpleEventJson.bytes) | |
message.qos = AT_LEAST_ONCE_QOS | |
message.retained = false | |
client.publish('iot-2/evt/simple-event/fmt/json', message) | |
println "Message published: ${hardcodedSimpleEventJson}" | |
client.disconnect() | |
println "Client disconnected." |
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