Add influxdb connector

docker-compose.yml

@@ -8,3 +8,6 @@ services:
   clustering:
     build: .
     command: python3 cluster.py
+  influx:
+    build: .
+    command: python3 mqtt2influx.py

mqtt2influx.py

@@ -0,0 +1,32 @@
+import paho.mqtt.subscribe as sub
+import json
+from influxdb import InfluxDBClient
+import datetime
+
+
+DB = ('habctrl', 8086)
+BROKER = ('homeproxy', 1883)
+TOPIC_PREFIX = 'scalefix'
+TOPIC_WEIGHTS = TOPIC_PREFIX+'/weights'
+
+def handle_msg(client, userdata, message):
+    data = json.loads(message.payload.decode('utf-8'))
+    print(f'got data for {data["user"]}: {data["weight"]}')
+    client = InfluxDBClient(DB[0], DB[1], 'scalefix', 'weighting', 'scale')
+    json_body = [
+        {
+            "measurement": "weights",
+            "tags": {
+                "user": data['user'],
+            },
+            "time": datetime.datetime.fromtimestamp(data['timestamp']).isoformat(),
+            "fields": {
+                "value": data['weight']
+            }
+        }
+    ]
+    client.write_points(json_body)
+    client.close()
+
+
+sub.callback(handle_msg, [TOPIC_WEIGHTS], hostname=BROKER[0], port=BROKER[1])