move to python

src/app.py

@@ -0,0 +1,78 @@
+#!/usr/bin/env python
+
+"""
+Main entrypoint
+"""
+
+__author__ = "@tormakris"
+__copyright__ = "Copyright 2020, Birbnetes Team"
+__module_name__ = "app"
+__version__text__ = "1"
+
+from datetime import datetime
+import json
+import asyncio
+from aio_pika import connect, IncomingMessage, ExchangeType
+import sentry_sdk
+from aioinflux import InfluxDBClient
+import config
+
+if config.SENTRY_DSN:
+    sentry_sdk.init(
+        dsn=config.SENTRY_DSN,
+        send_default_pii=True,
+        release=config.RELEASE_ID,
+        environment=config.RELEASEMODE
+    )
+
+
+async def on_message(message: IncomingMessage):
+    """
+    on_message doesn't necessarily have to be defined as async.
+    Here it is to show that it's possible.
+    """
+    msg_json = json.loads(message.body)
+    now = datetime.now()
+    point = {
+        'time': now,
+        'measurement': 'sturnus',
+        'tags': {'device': 'dummy'},
+        'fields': {'probability': msg_json['probability']}
+    }
+    async with InfluxDBClient(username=config.INFLUXDB_USERNAME, password=config.INFLUXDB_PASSWORD,
+                              host=config.INFLUXDB_HOST, port=config.INFLUXDB_PORT) as client:
+        await client.create_database(db=config.INFLUXDB_DB)
+        await client.write(point)
+
+
+async def main(loop_):
+    # Perform connection
+    connection = await connect(
+        config.RABBITMQ_HOST, loop=loop_
+    )
+
+    # Creating a channel
+    channel = await connection.channel()
+
+    # Declare exchange
+    exchange = await channel.declare_exchange(
+        config.RABBITMQ_EXCHANGE, ExchangeType.FANOUT
+    )
+
+    # Declaring queue
+    queue = await channel.declare_queue(exclusive=True)
+
+    # Bind queue to exchange
+    await queue.bind(exchange)
+
+    # Start listening the queue with name 'hello'
+    await queue.consume(on_message, no_ack=True)
+
+
+if __name__ == "__main__":
+    loop = asyncio.get_event_loop()
+    loop.create_task(main(loop))
+
+    # we enter a never-ending loop that waits for data and
+    # runs callbacks whenever necessary.
+    loop.run_forever()

src/config.py

@@ -0,0 +1,25 @@
+#!/usr/bin/env python
+
+"""
+Configuration
+"""
+
+import os
+
+__author__ = "@tormakris"
+__copyright__ = "Copyright 2020, Birbnetes Team"
+__module_name__ = "config"
+__version__text__ = "1"
+
+SENTRY_DSN = os.environ.get("SENTRY_DSN")
+RELEASE_ID = os.environ.get("RELEASE_ID", "test")
+RELEASEMODE = os.environ.get("RELEASEMODE", "dev")
+
+RABBITMQ_HOST = os.getenv("RABBITMQ_HOST", "amqp://guest:guest@localhost/")
+RABBITMQ_EXCHANGE = os.getenv("RABBITMQ_EXCHANGE", "output")
+
+INFLUXDB_HOST = os.getenv("INFLUX_HOST", "output-service")
+INFLUXDB_PORT = os.getenv("INFLUX_PORT", "8086")
+INFLUXDB_USERNAME = os.getenv("INFLUX_USERNAME", "output-service")
+INFLUXDB_PASSWORD = os.getenv("INFLUX_PASSWORD", "output-service-supersecret")
+INFLUXDB_DB = os.getenv("INFLUX_DB", "output-service")