Change logging to be json comaptible

internal/api/middleware/logging.go

@@ -1 +1,87 @@
 package middleware
+
+import (
+	"strconv"
+	"time"
+
+	"ResendIt/internal/logger"
+
+	"github.com/gin-gonic/gin"
+	"github.com/rs/zerolog"
+)
+
+// StructuredLogger returns a gin middleware that logs HTTP requests in JSON format
+func StructuredLogger() gin.HandlerFunc {
+	return func(c *gin.Context) {
+		start := time.Now()
+		path := c.Request.URL.Path
+		query := c.Request.URL.RawQuery
+		method := c.Request.Method
+
+		c.Next()
+
+		latency := time.Since(start)
+		status := c.Writer.Status()
+		clientIP := c.ClientIP()
+		userAgent := c.Request.UserAgent()
+		requestID := c.GetString("request_id")
+
+		evt := logger.Log.Info().
+			Str("type", "http_request").
+			Str("method", method).
+			Str("path", path).
+			Str("query", query).
+			Int("status", status).
+			Dur("latency_ms", latency).
+			Str("client_ip", clientIP).
+			Str("user_agent", userAgent).
+			Str("request_id", requestID)
+
+		if len(c.Errors) > 0 {
+			evt = evt.Str("error", c.Errors.ByType(gin.ErrorTypePrivate).String())
+		}
+
+		if userID, exists := c.Get("user_id"); exists {
+			evt = evt.Str("user_id", userID.(string))
+		}
+		if username, exists := c.Get("username"); exists {
+			evt = evt.Str("username", username.(string))
+		}
+
+		evt.Msg("")
+	}
+}
+
+// RequestIDMiddleware adds a unique request ID to each request
+func RequestIDMiddleware() gin.HandlerFunc {
+	return func(c *gin.Context) {
+		requestID := c.GetHeader("X-Request-ID")
+		if requestID == "" {
+			requestID = generateRequestID()
+		}
+		c.Set("request_id", requestID)
+		c.Header("X-Request-ID", requestID)
+		c.Next()
+	}
+}
+
+func generateRequestID() string {
+	// Simple request ID generation - could use uuid package for more entropy
+	return strconv.FormatInt(time.Now().UnixNano(), 36)
+}
+
+// StructuredLog returns a child logger with HTTP context for use in handlers
+func StructuredLog(c *gin.Context) zerolog.Logger {
+	log := logger.Log.With().
+		Str("type", "app_log").
+		Str("request_id", c.GetString("request_id"))
+
+	if userID, exists := c.Get("user_id"); exists {
+		log = log.Str("user_id", userID.(string))
+	}
+	if username, exists := c.Get("username"); exists {
+		log = log.Str("username", username.(string))
+	}
+
+	return log.Logger()
+}