YoLink Client API

Setup

• Get credentials from YoLink mobile app:

  • Settings, Account, Advanced Settings, User Access Credentials

• Store the credentials in environment variables:

    export YOLINK_UAID="UAID"
    export YOLINK_SECRET_KEY="Secret Key"
  

• Build and run the yl-request app to test the API.

Commands / Sample Apps

yl-request

• Utility to query device list and device state.

• Example commands:

    yl-request list-devices
    yl-request get-state DEVICE_ID
  

yl-msgdump

• Logs MQTT messages to stdout.

yl-pgwriter

• Logs MQTT messages to PostgreSQL.

• See cmd/yl-pgwriter/postgres_setup.sql for DB setup script.

• Configure DB connection in an environment variable:

    export YOLINK_DB_URL="postgres://yolink:abcd@localhost:5432/yolink"
  

• Example query:

    select time,
           dev_id,
           (payload->'data'->'temperature')::float as t,
           (payload->'data'->'humidity')::float as h
    from mqtt_messages
    order by time;