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c296f4fed6
* When route cannot be found on chi, go to macaron * Stick chi version to 1.5.0 * Follow router log setting
56 lines
1.3 KiB
Go
Vendored
56 lines
1.3 KiB
Go
Vendored
package middleware
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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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"github.com/go-chi/chi"
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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() http.Handler {
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r := chi.NewRouter()
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r.Use(NoCache)
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r.Get("/", func(w http.ResponseWriter, r *http.Request) {
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http.Redirect(w, r, r.RequestURI+"/pprof/", 301)
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})
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r.HandleFunc("/pprof", func(w http.ResponseWriter, r *http.Request) {
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http.Redirect(w, r, r.RequestURI+"/", 301)
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})
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r.HandleFunc("/pprof/*", pprof.Index)
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r.HandleFunc("/pprof/cmdline", pprof.Cmdline)
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r.HandleFunc("/pprof/profile", pprof.Profile)
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r.HandleFunc("/pprof/symbol", pprof.Symbol)
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r.HandleFunc("/pprof/trace", pprof.Trace)
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r.HandleFunc("/vars", expVars)
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return r
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}
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// Replicated from expvar.go as not public.
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func expVars(w http.ResponseWriter, r *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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