When it comes to observability Grafana is the go-to tool for visualization. A Grafana dashboard consists of various forms of visualizations which are usually backed by a database.
This is not always the case. Sometimes instead of pushing the data from the database as is, you might want to refine the data. This cannot always be achieved through the functionalities the DB provides. For example, you might want to fetch results from a proprietary API. This is where the grafana-infinity-datasource plugin kicks in. With grafana-infinity-datasource, you can create visualizations based on JSON, XML, CSV, etc. You can issue an HTTP request to a REST API and plot the received data.

Tutorial

Let’s assume we have an eShop application. We will create a simple Python API using FastAPI to manage the items of the eShop and the purchase volume.