[Image-MQTT] Publish and subscribe the images through MQTT #mqtt #image

mqtt_image_pub.py

import paho.mqtt.publish as publish

f= open("test.jpg")
filecontent = f.read()
byteArr = bytearray(filecontent)

publish.single('topic', byteArr, qos=1, hostname='m2m.eclipse.org')

mqtt_image_sub.py

import paho.mqtt.client as mqtt

# The callback for when the client receives a CONNACK response from the server.
def on_connect(client, userdata, flags, rc):
  print("Connected with result code "+str(rc))
  # Subscribing in on_connect() means that if we lose the connection and
  # reconnect then subscriptions will be renewed.
  client.subscribe("topic")
  
# The callback for when a PUBLISH message is received from the server.
def on_message(client, userdata, msg):
  f = open('receive.jpg','w')
  f.write(msg.payload)
  f.close()
  print 'image received'
  
client = mqtt.Client()
client.on_connect = on_connect
client.on_message = on_message
client.connect("m2m.eclipse.org", 1883, 60)

# Blocking call that processes network traffic, dispatches callbacks and
# handles reconnecting.
# Other loop*() functions are available that give a threaded interface and a
# manual interface.
client.loop_forever()

Send images through MQTT

Send images through MQTT