Polls Alpha Vantage servers for supplied stocks and publishes to a mqtt broker.
All configuration is done via the config.env file.
[SECRET]
api_key: 1234567890abc
[CONFIG]
interval: 3600
timeout: 0.005
trace: False
tickers: goog, fdx, amzn
[MQTT]
broker: localhost
port: 1883
username: mqtt_user
password: mqtt
root_topic: stocks/