first version

logger/request_logger.go

@@ -0,0 +1,65 @@
+package logger
+
+import (
+	"fmt"
+	"net/http"
+	"time"
+
+	"github.com/go-chi/chi/middleware"
+	"github.com/rs/zerolog"
+)
+
+// StructuredLogger that uses zerolog
+type StructuredLogger struct {
+	Logger *zerolog.Logger
+}
+
+// StructuredLoggerEntry using zerolog logger
+type StructuredLoggerEntry struct {
+	Logger *zerolog.Logger
+	fields map[string]interface{}
+}
+
+// NewStructuredLogger returns RequestLogger
+func NewStructuredLogger(logger *zerolog.Logger) func(next http.Handler) http.Handler {
+	return middleware.RequestLogger(&StructuredLogger{logger})
+}
+
+// NewLogEntry creates a new log entry
+func (l *StructuredLogger) NewLogEntry(r *http.Request) middleware.LogEntry {
+	scheme := "http"
+	if r.TLS != nil {
+		scheme = "https"
+	}
+
+	fields := map[string]interface{}{
+		"remote_addr": r.RemoteAddr,
+		"proto":       r.Proto,
+		"method":      r.Method,
+		"user_agent":  r.UserAgent(),
+		"uri":         fmt.Sprintf("%s://%s%s", scheme, r.Host, r.RequestURI)}
+
+	reqID := middleware.GetReqID(r.Context())
+	if reqID != "" {
+		fields["request_id"] = reqID
+	}
+
+	return &StructuredLoggerEntry{Logger: l.Logger, fields: fields}
+}
+
+// Write a new entry
+func (l *StructuredLoggerEntry) Write(status, bytes int, elapsed time.Duration) {
+	l.Logger.Info().Fields(l.fields).Int(
+		"resp_status", status).Int(
+		"resp_size", bytes).Int64(
+		"elapsed_ms", elapsed.Nanoseconds()/1000000).Str(
+		"sender", "httpd").Msg(
+		"")
+}
+
+// Panic logs panics
+func (l *StructuredLoggerEntry) Panic(v interface{}, stack []byte) {
+	l.Logger.Error().Fields(l.fields).Str(
+		"stack", string(stack)).Str(
+		"panic", fmt.Sprintf("%+v", v)).Msg("")
+}