This is a minimal setup that you can build to monitor your FastAPI microservice.

There are only two prerequisites:

• Docker
• Docker-compose

Having both, you'll need to clone the repository:

git clone https://github.com/Kludex/fastapi-prometheus-grafana

You'll need to run the docker containers:

docker-compose up

Now you have access to those three containers and their respective ports:

• Prometheus: http://localhost:9090/
• Grafana: http://localhost:3000/
• FastAPI: http://localhost:8000/

On the FastAPI, you can access /metrics endpoint to see the data Prometheus is scraping from it.

• Prometheus FastAPI Instrumentator
• Generate and Track Metrics for Flask API Applications Using Prometheus and Grafana
• PromQL for Humans