add access log (#19)

Co-authored-by: czhuang <[email protected]>

Author: CatherineZhuang

go.mod

@@ -15,6 +15,7 @@ require (
 	github.com/imdario/mergo v0.3.7 // indirect
 	github.com/json-iterator/go v1.1.7 // indirect
 	github.com/kr/pretty v0.2.0 // indirect
+	github.com/mash/go-accesslog v1.2.0
 	github.com/mohae/deepcopy v0.0.0-20170929034955-c48cc78d4826
 	github.com/pkg/errors v0.8.1
 	github.com/sirupsen/logrus v1.4.2

go.sum

@@ -69,6 +69,8 @@ github.com/kr/pretty v0.2.0/go.mod h1:ipq/a2n7PKx3OHsz4KJII5eveXtPO4qwEXGdVfWzfn
 github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
 github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
 github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
+github.com/mash/go-accesslog v1.2.0 h1:NRbA2PqSLjY8UUZAWAzuCVjidKBISzdc5IjJ0gdJe8g=
+github.com/mash/go-accesslog v1.2.0/go.mod h1:DAbGQzio0KX16krP/3uouoTPxGbzcPjFAb948zazOgg=
 github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
 github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd h1:TRLaZ9cD/w8PVh93nsPXa1VrQ6jlwL5oN8l14QlcNfg=
 github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=

pkg/log/log.go

@@ -17,9 +17,11 @@ package log
 
 import (
 	"io"
+	"net/http"
 	"os"
 	"path/filepath"
 
+	"github.com/mash/go-accesslog"
 	"github.com/sirupsen/logrus"
 	"gopkg.in/natefinch/lumberjack.v2"
 )
@@ -70,6 +72,22 @@ func InitLogger(logFile, level string) {
 	log = newLogger(logFile, level)
 }
 
+type AccessLogger struct {
+	access *logrus.Logger
+}
+
+func (l *AccessLogger) Log(record accesslog.LogRecord) {
+	l.access.Printf("%s %s %d %v %v", record.Method, record.Uri, record.Status, record.ElapsedTime, record.CustomRecords)
+}
+
+// InitAccessLogger returns a handler that wraps the supplied delegate with access logging.
+func InitAccessLogger(h http.Handler, logFile, level string) http.Handler {
+	l := &AccessLogger{
+		access: newLogger(logFile, level),
+	}
+	return accesslog.NewLoggingHandler(h, l)
+}
+
 // Debugf - Debugf function
 func Debugf(format string, args ...interface{}) {
 	log.Debugf(format, args...)