site/vendor/github.com/Xe/ln/ex/http.go

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2017-12-13 18:43:58 +00:00
package ex
import (
"net"
"net/http"
"time"
"github.com/Xe/ln"
)
func HTTPLog(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
host, _, _ := net.SplitHostPort(r.RemoteAddr)
f := ln.F{
"remote_ip": host,
"x_forwarded_for": r.Header.Get("X-Forwarded-For"),
"path": r.URL.Path,
}
ctx := ln.WithF(r.Context(), f)
st := time.Now()
next.ServeHTTP(w, r.WithContext(ctx))
af := time.Now()
f["request_duration"] = af.Sub(st)
ws, ok := w.(interface {
Status() int
})
if ok {
f["status"] = ws.Status()
}
ln.Log(r.Context(), f)
})
}