Develop a custom logging middleware to replace ginzap

[vbelouso]

The current ginzap package provides the following log lines:

{
  "level": "info",
  "timestamp": "2023-08-31T14:33:44.827+0200",
  "msg": "/clusters",
  "status": 200,
  "method": "GET",
  "path": "/clusters",
  "query": "",
  "ip": "127.0.0.1",
  "latency": 0.110493355,
  "time": "2023-08-31T12:33:44Z"
}

There are several problems with this:

• msg and path are the same. But we don't want to see a URL path in the msg field.
  The issue is here
  Ginzap passes the path as the first parameter to Zap function log.Info which expected message.

• duplicated fields timestamp and time. Dirty hack for that - don't pass TimeFormat to Ginzap
  Like:

router.Use(ginzap.GinzapWithConfig(logger, &ginzap.Config{UTC: true}))

A useful option might be to create our custom middleware

For example

func SetLogger(l *zap.Logger) gin.HandlerFunc {
	return func(c *gin.Context) {
		t1 := time.Now()
		defer func() {
			l.Info("served request",
				zap.String("proto", c.Request.Proto),
				zap.String("method", c.Request.Method),
				zap.String("path", c.Request.URL.Path),
				zap.Duration("lat", time.Since(t1)),
				zap.Int("status", c.Writer.Status()),
				zap.Int("size", c.Writer.Size()),
			)
		}()
	}
}