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BTSASS_SE/DanielTraci_PublishImage.py
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from paho.mqtt import client as mqtt_client | |
import base64 | |
import json | |
from datetime import datetime | |
broker = 'broker.hivemq.com' | |
port = 8883 | |
topic_sub = "image" | |
client_id = 'tracid' | |
def connect_mqtt(): | |
def on_connect(client, userdata, flags, rc): | |
if rc == 0: | |
print("Successfully connected to MQTT broker") | |
else: | |
print("Failed to connect, return code %d", rc) | |
client = mqtt_client.Client(client_id) | |
client.on_connect = on_connect | |
client.username_pw_set("username","password") | |
client.connect(broker, port) | |
return client | |
def subscribe(client: mqtt_client): | |
def on_message(client, userdata, msg): | |
y = json.loads(msg.payload.decode()) | |
print(msg.payload.decode()) | |
category = y["category"] | |
image_data = y["image"] | |
msg = str(image_data) | |
img = msg.encode('ascii') | |
now = datetime.now() # current date and time | |
filename = now.strftime("%m%d%Y-%H:%M:%S.jpg") | |
f = open("./"+category+"/"+filename, 'wb') | |
final_img = base64.b64decode(img) | |
print(final_img) | |
f.write(final_img) | |
f.close() | |
client.subscribe(topic_sub) | |
client.on_message = on_message | |
def main(): | |
client = connect_mqtt() | |
subscribe(client) | |
client.loop_forever() | |
if __name__ == '__main__': | |
main() |