Grizzl-E Connect Monitor

This is a tool to monitor the Grizzl-E Connect API. It is designed to be run as a service and will scrape the Grizzl-E Connect API for the current status of your Grizzl-E charger and expose Prometheus metrics and push to TimescaleDB.

Configuration

The following environment variables can be used to configure the scraper:

• GRIZZLE_CONNECT_API_URL: The URL of the Grizzl-E Connect API. Defaults to connect-api.unitedchargers.com.
• GRIZZLE_CONNECT_API_USERNAME: The username to use when authenticating with the Grizzl-E Connect API.
• GRIZZLE_CONNECT_API_PASSWORD: The password to use when authenticating with the Grizzl-E Connect API.

TimescaleDB output for transaction metrics can be enabled by defining:

• TIMESCALE_URL - A DB URL for the PostgreSQL database.

The database should be empty, go-migrate will be used to create the required tables during startup.

Running

The easiest way to run the scraper is to use the docker image. Make sure to set the environment variables as needed.

docker run -d -p 8080:8080 -e GRIZZLE_CONNECT_API_USERNAME=your-username -e GRIZZLE_CONNECT_API_PASSWORD=your-password ghcr.io/speshak/grizzl-e-monitor:main

API Client

There is an implementation of a grizzl-e connect API client in pkg/connect. The Connect service does not publish any API information so this client was built by capturing traffic from the iPadOS client app. It certainly is not feature incomplete and could break in the future.