43 lines
1.4 KiB
Python
43 lines
1.4 KiB
Python
# App initialization
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import sys
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from flask import Flask
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from .tasks import celery as celery_configurator
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app = Flask(__name__, instance_relative_config=True)
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app.config.from_object('config')
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app.config.from_pyfile('config.py', silent=True)
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app.config['MQTT_CLIENT_ID'] = 'final-iot-backend-server-worker'
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celery = celery_configurator.make_celery(app)
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@celery.task()
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def send_config(device_id, config):
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from flask_mqtt import Mqtt, MQTT_ERR_SUCCESS
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mqtt = Mqtt(app)
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@mqtt.on_log()
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def handle_logging(client, userdata, level, buf):
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print(level, buf)
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@mqtt.on_connect()
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def handle_connect(client, userdata, flags, rc):
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print('MQTT worker client connected')
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print("Sending configuration to device: " + str(device_id))
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print("Configuration: " + str(config))
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topic = 'device/' + str(device_id) + '/config'
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print("Targeting topic: " + topic)
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try:
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(result, mid) = mqtt.publish(topic, config, 2)
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if (result == MQTT_ERR_SUCCESS):
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print("Success!!!")
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print("Result: " + str(result))
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print("Message id: " + str(mid))
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mqtt.client.disconnect()
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except Exception:
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print("ERROR!")
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error_type, error_instance, traceback = sys.exc_info()
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print("Type: " + str(error_type))
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print("Instance: " + str(error_instance))
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mqtt.client.disconnect()
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return
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