Prometheus middleware for chi v5.
func main() {
r := chi.NewRouter()
r.Use(chiprometheus.NewMiddleware("service_name"))
r.Handle("/metrics", promhttp.Handler())
// others routers ...
http.ListenAndServe(":3000", r)
}An endpoint with the following information:
# HELP chi_pattern_request_duration_milliseconds How long it took to process the request, partitioned by status code, method and HTTP path (with patterns).
# TYPE chi_pattern_request_duration_milliseconds histogram
chi_pattern_request_duration_milliseconds_bucket{code="OK",method="GET",path="/metrics",service="test_service",le="300"} 1
chi_pattern_request_duration_milliseconds_bucket{code="OK",method="GET",path="/metrics",service="test_service",le="1200"} 1
chi_pattern_request_duration_milliseconds_bucket{code="OK",method="GET",path="/metrics",service="test_service",le="5000"} 1
chi_pattern_request_duration_milliseconds_bucket{code="OK",method="GET",path="/metrics",service="test_service",le="+Inf"} 1
chi_pattern_request_duration_milliseconds_sum{code="OK",method="GET",path="/metrics",service="test_service"} 0.975926
chi_pattern_request_duration_milliseconds_count{code="OK",method="GET",path="/metrics",service="test_service"} 1
chi_pattern_request_duration_milliseconds_bucket{code="OK",method="GET",path="/users/{firstName}",service="test_service",le="300"} 0
chi_pattern_request_duration_milliseconds_bucket{code="OK",method="GET",path="/users/{firstName}",service="test_service",le="1200"} 0
chi_pattern_request_duration_milliseconds_bucket{code="OK",method="GET",path="/users/{firstName}",service="test_service",le="5000"} 2
chi_pattern_request_duration_milliseconds_bucket{code="OK",method="GET",path="/users/{firstName}",service="test_service",le="+Inf"} 2
chi_pattern_request_duration_milliseconds_sum{code="OK",method="GET",path="/users/{firstName}",service="test_service"} 4755.052755
chi_pattern_request_duration_milliseconds_count{code="OK",method="GET",path="/users/{firstName}",service="test_service"} 2
# HELP chi_pattern_requests_total How many HTTP requests processed, partitioned by status code, method and HTTP path (with patterns).
# TYPE chi_pattern_requests_total counter
chi_pattern_requests_total{code="OK",method="GET",path="/metrics",service="test_service"} 1
chi_pattern_requests_total{code="OK",method="GET",path="/users/{firstName}",service="test_service"} 2