GIN Logger with go-kit/log

gin_gokit_logger.go

package ginlogger

// Directly inspired from the default gin.Logger

// This is to be used like this:
// r := gin.New()
// r.Use(gin.Recovery())
// r.Use(ginlogger.LoggerWithGoKit(mylogger))

import (
	"time"
	"github.com/gin-gonic/gin"
	"github.com/go-kit/kit/log"
)

func LoggerWithGoKit(logger log.Logger, notlogged ...string) gin.HandlerFunc {
	var skip map[string]struct{}

	if length := len(notlogged); length > 0 {
		skip = make(map[string]struct{}, length)

		for _, path := range notlogged {
			skip[path] = struct{}{}
		}
	}

	return func(c *gin.Context) {
		// Start timer
		start := time.Now()
		path := c.Request.URL.Path

		// Process request
		c.Next()

		// Log only when path is not being skipped
		if _, ok := skip[path]; !ok {
			// Stop timer
			end := time.Now()
			latency := end.Sub(start)

			clientIP := c.ClientIP()
			method := c.Request.Method
			statusCode := c.Writer.Status()



			logger.Log(
				"action", "api.http_request",
				"path", path,
				"method", method,
				"statusCode", statusCode,
				"latency", latency,
				"clientIp", clientIP,
			)
		}
	}
}