/
simple.go
58 lines (47 loc) · 1.32 KB
/
simple.go
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/*
* Copyright (c) 2013 IBM Corp.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Seth Hoenig
* Allan Stockdill-Mander
* Mike Robertson
*/
package main
import (
"fmt"
"os"
"time"
MQTT "github.com/antlinker/mqtt-cli"
)
var f MQTT.MessageHandler = func(client *MQTT.Client, msg MQTT.Message) {
fmt.Printf("TOPIC: %s\n", msg.Topic())
fmt.Printf("MSG: %s\n", msg.Payload())
}
func main() {
opts := MQTT.NewClientOptions().AddBroker("tcp://iot.eclipse.org:1883").SetClientID("gotrivial")
opts.SetDefaultPublishHandler(f)
c := MQTT.NewClient(opts)
if token := c.Connect(); token.Wait() && token.Error() != nil {
panic(token.Error())
}
if token := c.Subscribe("/go-mqtt/sample", 0, nil); token.Wait() && token.Error() != nil {
fmt.Println(token.Error())
os.Exit(1)
}
for i := 0; i < 5; i++ {
text := fmt.Sprintf("this is msg #%d!", i)
token := c.Publish("/go-mqtt/sample", 0, false, text)
token.Wait()
}
time.Sleep(3 * time.Second)
if token := c.Unsubscribe("/go-mqtt/sample"); token.Wait() && token.Error() != nil {
fmt.Println(token.Error())
os.Exit(1)
}
c.Disconnect(250)
}