switch api {
	case putObjectTaggingAPI:
		if !isErr {
			atomic.AddUint64(&v.PutTagTotal, 1)
			atomic.AddUint64(&p.srProxyStats.PutTagTotal, 1)
		} else {
			atomic.AddUint64(&v.PutTagFailedTotal, 1)
			atomic.AddUint64(&p.srProxyStats.PutTagFailedTotal, 1)
		}
	case getObjectTaggingAPI:
		if !isErr {
			atomic.AddUint64(&v.GetTagTotal, 1)
			atomic.AddUint64(&p.srProxyStats.GetTagTotal, 1)
		} else {

		case "hc":
			z.HeadTotal, err = dc.ReadUint64()
			if err != nil {
				err = msgp.WrapError(err, "HeadTotal")
				return
			}
		case "ptf":
			z.PutTagFailedTotal, err = dc.ReadUint64()
			if err != nil {
				err = msgp.WrapError(err, "PutTagFailedTotal")
				return
			}
		case "gtf":
			z.GetTagFailedTotal, err = dc.ReadUint64()
			if err != nil {
				err = msgp.WrapError(err, "GetTagFailedTotal")