feat(metrics): Adding initial support for prometheus metrics #1176
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This is an initial PR to add the initial support for Prometheus metrics. It only adds one metric for API calls duration. We need to figure out what we want to expose in the metrics.
For this PR I'm using OpenTelemetry library, but I'm focusing on exposing the Prometheus metrics. In the future we can expand that with other Metrics format and add Tracing if we considere it interesting.
This PR fixes #519
Here is a screenshot of some metrics collected quicly