app-api/internal/middleware/logger.go

package middleware

import (
	"time"

	"github.com/gin-gonic/gin"
	"go.uber.org/zap"
)

func Logger(log *zap.Logger) gin.HandlerFunc {
	return func(c *gin.Context) {
		// 跳过 health 检查的日志
		if c.Request.URL.Path == "/api/v1/health" {
			c.Next()
			return
		}

		start := time.Now()
		path := c.Request.URL.Path
		query := c.Request.URL.RawQuery

		c.Next()

		latency := time.Since(start)
		status := c.Writer.Status()
		requestID, _ := c.Get(RequestIDKey)

		fields := []zap.Field{
			zap.Int("status", status),
			zap.String("method", c.Request.Method),
			zap.String("path", path),
			zap.Duration("latency", latency),
			zap.String("ip", c.ClientIP()),
			zap.Any("request_id", requestID),
		}
		if query != "" {
			fields = append(fields, zap.String("query", query))
		}
		if len(c.Errors) > 0 {
			fields = append(fields, zap.String("errors", c.Errors.String()))
		}

		if status >= 500 {
			log.Error("request", fields...)
		} else if status >= 400 {
			log.Warn("request", fields...)
		} else {
			log.Info("request", fields...)
		}
	}
}