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A Go http.RoundTripper that exports request statistics via Prometheus.

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instrumented_http

A Go http.RoundTripper that exports request statistics via Prometheus.

Example

Transparently inject instrumented_http into any http.Client or http.RoundTripper and get metrics about all requests made.

$ curl -Ss 127.0.0.1:9099/metrics | grep http
http_request_duration_seconds{handler="instrumented_http",host="my-cluster.example.org",method="GET",path="pods",query="",scheme="https",status="200",quantile="0.5"} 0.83626
http_request_duration_seconds{handler="instrumented_http",host="my-cluster.example.org",method="GET",path="pods",query="",scheme="https",status="200",quantile="0.9"} 0.736648
http_request_duration_seconds{handler="instrumented_http",host="my-cluster.example.org",method="GET",path="pods",query="",scheme="https",status="200",quantile="0.99"} 0.736648
http_request_duration_seconds_sum{handler="instrumented_http",host="my-cluster.example.org",method="GET",path="pods",query="",scheme="https",status="200"} 0.820274243
http_request_duration_seconds_count{handler="instrumented_http",host="my-cluster.example.org",method="GET",path="pods",query="",scheme="https",status="200"} 2

Usage

Browse the examples directory to see how instrumented_http works with:

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A Go http.RoundTripper that exports request statistics via Prometheus.

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