Added logger singleton

utils/logger/logger.go

@@ -0,0 +1,27 @@
+package logger
+
+import (
+	"sync"
+
+	"go.uber.org/zap"
+)
+
+var (
+	instance Logger    // Global instance of Logger interface
+	once     sync.Once // Ensures logger is initialized only once
+)
+
+// Init initializes the global logger. This function should be called once, ideally during the app startup.
+func Init(zapLogger *zap.Logger) {
+	once.Do(func() {
+		instance = NewZapLogger(zapLogger) // Assign the zapLogger as the global logger
+	})
+}
+
+// Get returns the global logger instance.
+func Get() Logger {
+	if instance == nil {
+		panic("Logger is not initialized. Call logger.Init() before using the logger.")
+	}
+	return instance
+}

utils/logger/logger_interface.go

@@ -0,0 +1,14 @@
+package logger
+
+import "go.uber.org/zap"
+
+// Logger interface to abstract logging
+type Logger interface {
+	Info(msg string, fields ...zap.Field)
+	Warn(msg string, fields ...zap.Field)
+	Error(msg string, fields ...zap.Field)
+	Debug(msg string, fields ...zap.Field)
+	Fatal(msg string, fields ...zap.Field)
+
+	Named(name string) Logger
+}

utils/logger/zap_logger.go

@@ -0,0 +1,37 @@
+package logger
+
+import (
+	"go.uber.org/zap"
+)
+
+type ZapLogger struct {
+	logger *zap.Logger
+}
+
+// NewZapLogger creates a new ZapLogger instance
+func NewZapLogger(zapLogger *zap.Logger) *ZapLogger {
+	return &ZapLogger{logger: zapLogger}
+}
+
+// Implement the Logger interface methods
+func (z *ZapLogger) Info(msg string, fields ...zap.Field) {
+	z.logger.Info(msg, fields...)
+}
+
+func (z *ZapLogger) Warn(msg string, fields ...zap.Field) {
+	z.logger.Warn(msg, fields...)
+}
+
+func (z *ZapLogger) Error(msg string, fields ...zap.Field) {
+	z.logger.Error(msg, fields...)
+}
+func (z *ZapLogger) Fatal(msg string, fields ...zap.Field) {
+	z.logger.Fatal(msg, fields...)
+}
+
+func (z *ZapLogger) Debug(msg string, fields ...zap.Field) {
+	z.logger.Debug(msg, fields...)
+}
+func (z *ZapLogger) Named(name string) Logger {
+	return &ZapLogger{logger: z.logger.Named(name)}
+}