mirror of
https://github.com/kemko/reproxy.git
synced 2026-01-01 15:55:49 +03:00
49 lines
1.3 KiB
Go
49 lines
1.3 KiB
Go
package rest
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import (
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"expvar"
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"fmt"
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"net/http"
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"net/http/pprof"
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)
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// Profiler is a convenient subrouter used for mounting net/http/pprof. ie.
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//
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// func MyService() http.Handler {
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// r := chi.NewRouter()
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// // ..middlewares
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// r.Mount("/debug", middleware.Profiler())
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// // ..routes
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// return r
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// }
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func Profiler(onlyIps ...string) http.Handler {
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mux := http.NewServeMux()
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mux.HandleFunc("/pprof/", pprof.Index)
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mux.HandleFunc("/pprof/cmdline", pprof.Cmdline)
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mux.HandleFunc("/pprof/profile", pprof.Profile)
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mux.HandleFunc("/pprof/symbol", pprof.Symbol)
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mux.HandleFunc("/pprof/trace", pprof.Trace)
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mux.Handle("/pprof/block", pprof.Handler("block"))
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mux.Handle("/pprof/heap", pprof.Handler("heap"))
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mux.Handle("/pprof/goroutine", pprof.Handler("goroutine"))
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mux.Handle("/pprof/threadcreate", pprof.Handler("threadcreate"))
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mux.HandleFunc("/vars", expVars)
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return Wrap(mux, NoCache, OnlyFrom(onlyIps...))
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}
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// expVars copied from stdlib expvar.go as is not public.
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func expVars(w http.ResponseWriter, _ *http.Request) {
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first := true
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w.Header().Set("Content-Type", "application/json")
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fmt.Fprintf(w, "{\n")
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expvar.Do(func(kv expvar.KeyValue) {
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if !first {
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fmt.Fprintf(w, ",\n")
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}
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first = false
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fmt.Fprintf(w, "%q: %s", kv.Key, kv.Value)
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})
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fmt.Fprintf(w, "\n}\n")
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}
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