forked from grafana/synthetic-monitoring-agent
/
http.go
81 lines (69 loc) · 1.65 KB
/
http.go
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package http
import (
"context"
"fmt"
"log"
"net"
"net/http"
"time"
"github.com/felixge/httpsnoop"
"github.com/rs/zerolog"
)
type server struct {
srv *http.Server
}
func NewServer(ctx context.Context, handler http.Handler, cfg Config) *server {
stdlog := log.New(cfg.Logger, "", 0)
wrapper := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
m := httpsnoop.CaptureMetrics(handler, w, r)
var level zerolog.Level
switch m.Code / 100 {
case 1, 2, 3:
level = zerolog.InfoLevel
case 4:
level = zerolog.WarnLevel
case 5:
level = zerolog.ErrorLevel
default:
level = zerolog.WarnLevel
}
cfg.Logger.WithLevel(level).
Str("method", r.Method).
Stringer("url", r.URL).
Int("code", m.Code).
Dur("duration", m.Duration).
Msg("handled request")
})
return &server{
srv: &http.Server{
Addr: cfg.ListenAddr,
Handler: wrapper,
ErrorLog: stdlog,
ReadTimeout: cfg.ReadTimeout,
WriteTimeout: cfg.WriteTimeout,
IdleTimeout: cfg.IdleTimeout,
BaseContext: func(net.Listener) context.Context { return ctx },
},
}
}
func (s *server) ListenAddr() string {
return s.srv.Addr
}
func (s *server) Run(l net.Listener) error {
s.srv.ErrorLog.Printf("Starting HTTP server on %s...", s.srv.Addr)
err := s.srv.Serve(l)
if err != nil && err != http.ErrServerClosed {
return fmt.Errorf("could not serve HTTP on %s: %w", s.srv.Addr, err)
}
return nil
}
func (s *server) Shutdown(ctx context.Context) error {
return s.srv.Shutdown(ctx)
}
type Config struct {
ListenAddr string
Logger zerolog.Logger
ReadTimeout time.Duration
WriteTimeout time.Duration
IdleTimeout time.Duration
}