dummy-prometheus

This dummy project just pull the latest Prometheus image and run.

It collects metrics from the Dummy Python API and from its own metrics.

Examples of PromQL

Get the all requests made to the endpoint /api/resource:

request_latency_seconds_sum{endpoint="/api/resource"}

You can filter by the method too:

request_latency_seconds_sum{method="GET", endpoint="/api/resource"}

You can sum all the number of the request no matter the http method:

sum(request_latency_seconds_sum{endpoint="/api/resource"})

The media latency (the time waste by the server to generate the response):

sum(request_latency_seconds_sum{endpoint="/api/resource"}) / sum(request_latency_seconds_count{endpoint="/api/resource"})

You can check how many http 400 was produced by the application:

request_count_total{endpoint="/api/resource", http_status="400"}

Or if you want to filter by method too, you can query like:

request_count_total{endpoint="/api/resource", http_status="400", method="POST"}