refactor: gin logger middleware

.env.example

@@ -2,5 +2,6 @@ ENVIRONMENT=development # production
 POSTGRES_SOURCE=postgres://postgres:postgres@0.0.0.0:5432/realworld?sslmode=disable
 POSTGRES_MIGRATION_URL=file://internal/adapter/repository/sql/db/migration
 MONGO_SOURCE=mongodb://root:root@0.0.0.0:27017/realworld?authSource=admin
+LOG_TYPE=zerolog
 HTTP_SERVER_PORT=5000
 TOKEN_SYMMETRIC_KEY=12345678901234567890123456789012

.env.test

@@ -2,5 +2,6 @@ ENVIRONMENT=development
 POSTGRES_SOURCE=postgres://postgres:postgres@0.0.0.0:5432/realworld?sslmode=disable
 POSTGRES_MIGRATION_URL=file://../../../internal/adapter/repository/sql/db/migration
 MONGO_SOURCE=mongodb://root:root@0.0.0.0:27017/realworld?authSource=admin
+LOG_TYPE=zerolog
 HTTP_SERVER_PORT=5000
 TOKEN_SYMMETRIC_KEY=12345678901234567890123456789012

.vscode/settings.json

@@ -7,6 +7,7 @@
         "dgrijalva",
         "Favorited",
         "gonic",
+        "interactor",
         "jackc",
         "labasubagia",
         "mapstructure",

cmd/server.go

@@ -2,7 +2,6 @@ package cmd
 
 import (
 	"fmt"
-	"os"
 	"strings"
 
 	"github.com/labasubagia/realworld-backend/internal/adapter/handler/restful"
@@ -47,17 +46,11 @@ var serverCmd = &cobra.Command{
 
 		// logger
 		logType, err := cmd.Flags().GetString("log")
-		if err != nil {
-			fmt.Fprintf(os.Stderr, "failed get log type flag: %s", err)
-			os.Exit(1)
-		}
-		newLogger, ok := logger.FnNewMap[logType]
-		if !ok {
-			logType = logger.DefaultType
-			newLogger = logger.NewLogger
+		if err == nil {
+			config.LogType = logType
 		}
-		logger := newLogger(config)
-		logger.Info().Msgf("use logger %s", logType)
+		logger := logger.NewLogger(config)
+		logger.Info().Msgf("use logger %s", config.LogType)
 
 		// db
 		dbType, err := cmd.Flags().GetString("database")

internal/adapter/handler/restful/logger.go

@@ -6,7 +6,8 @@ import (
 	"time"
 
 	"github.com/gin-gonic/gin"
-	"github.com/google/uuid"
+	"github.com/labasubagia/realworld-backend/internal/adapter/logger"
+	"github.com/labasubagia/realworld-backend/internal/core/domain"
 	"github.com/labasubagia/realworld-backend/internal/core/port"
 )
 
@@ -16,13 +17,16 @@ func (s *Server) Logger() gin.HandlerFunc {
 		// request id
 		reqID := c.GetHeader("x-request-id")
 		if reqID == "" {
-			reqID = uuid.NewString()
+			reqID = domain.NewID().String()
 		}
 
 		// make logger and sub-logger
-		logger := s.logger.Field("request_id", reqID).Logger()
+		// ? make unique instance for each handler/interactor request
+		logger := logger.NewLogger(s.config).Field("request_id", reqID).Logger()
 		c.Set(port.SubLoggerCtxKey, logger)
 
+		// logger := s.logger.Field("request_id", reqID).Logger()
+
 		// process request
 		startTime := time.Now()
 		c.Next()

internal/adapter/logger/main.go

@@ -25,5 +25,9 @@ func Keys() (keys []string) {
 }
 
 func NewLogger(config util.Config) port.Logger {
+	new, ok := FnNewMap[config.LogType]
+	if ok {
+		return new(config)
+	}
 	return FnNewMap[DefaultType](config)
 }

internal/core/domain/main.go

@@ -6,6 +6,10 @@ import (
 
 type ID string
 
+func (id ID) String() string {
+	return string(id)
+}
+
 func NewID() ID {
 	return ID(ulid.Make().String())
 }

internal/core/util/config.go

@@ -17,7 +17,8 @@ type Config struct {
 
 	MongoSource string `mapstructure:"MONGO_SOURCE"`
 
-	HTTPServerPort int `mapstructure:"HTTP_SERVER_PORT"`
+	HTTPServerPort int    `mapstructure:"HTTP_SERVER_PORT"`
+	LogType        string `mapstructure:"LOG_TYPE"`
 
 	TokenSymmetricKey string `mapstructure:"TOKEN_SYMMETRIC_KEY"`