diff --git a/README.md b/README.md
index bb5f3cd..740ae92 100644
--- a/README.md
+++ b/README.md
@@ -56,7 +56,7 @@ go run main.go
   DtmServer := "http://localhost:36789/api/dtmsvr"
   req := &gin.H{"amount": 30} // micro-service payload
 	// DtmServer is the address of DTM micro-service
-	saga := dtmcli.NewSaga(DtmServer, dtmcli.MustGenGid(DtmServer)).
+	saga := dtmcli.NewSaga(DtmServer, shortuuid.New()).
 		// add a TransOut subtraction，forward operation with url: qsBusi+"/TransOut", reverse compensation operation with url: qsBusi+"/TransOutCom"
 		Add(qsBusi+"/TransOut", qsBusi+"/TransOutCom", req).
 		// add a TransIn subtraction, forward operation with url: qsBusi+"/TransIn", reverse compensation operation with url: qsBusi+"/TransInCom"
diff --git a/helper/README-cn.md b/helper/README-cn.md
index 73c7c07..9ed7f06 100644
--- a/helper/README-cn.md
+++ b/helper/README-cn.md
@@ -85,7 +85,7 @@ go run main.go
   req := &gin.H{"amount": 30} // 微服务的载荷
   // DtmServer为DTM服务的地址，是一个url
   DtmServer := "http://localhost:36789/api/dtmsvr"
-  saga := dtmcli.NewSaga(DtmServer, dtmcli.MustGenGid(DtmServer)).
+  saga := dtmcli.NewSaga(DtmServer, shortuuid.New()).
     // 添加一个TransOut的子事务，正向操作为url: qsBusi+"/TransOut"， 补偿操作为url: qsBusi+"/TransOutCom"
     Add(qsBusi+"/TransOut", qsBusi+"/TransOutCom", req).
     // 添加一个TransIn的子事务，正向操作为url: qsBusi+"/TransIn"， 补偿操作为url: qsBusi+"/TransInCom"
diff --git a/helper/README-en.md b/helper/README-en.md
index bb5f3cd..740ae92 100644
--- a/helper/README-en.md
+++ b/helper/README-en.md
@@ -56,7 +56,7 @@ go run main.go
   DtmServer := "http://localhost:36789/api/dtmsvr"
   req := &gin.H{"amount": 30} // micro-service payload
 	// DtmServer is the address of DTM micro-service
-	saga := dtmcli.NewSaga(DtmServer, dtmcli.MustGenGid(DtmServer)).
+	saga := dtmcli.NewSaga(DtmServer, shortuuid.New()).
 		// add a TransOut subtraction，forward operation with url: qsBusi+"/TransOut", reverse compensation operation with url: qsBusi+"/TransOutCom"
 		Add(qsBusi+"/TransOut", qsBusi+"/TransOutCom", req).
 		// add a TransIn subtraction, forward operation with url: qsBusi+"/TransIn", reverse compensation operation with url: qsBusi+"/TransInCom"
diff --git a/helper/bench/svr/http.go b/helper/bench/svr/http.go
index 0c61c5a..6cac380 100644
--- a/helper/bench/svr/http.go
+++ b/helper/bench/svr/http.go
@@ -122,7 +122,7 @@ func qsAdjustBalance(uid int, amount int, c *gin.Context) error { // nolint: unp
 	if strings.Contains(mode, "barrier") {
 		barrier, err := dtmcli.BarrierFromQuery(c.Request.URL.Query())
 		logger.FatalIfError(err)
-		err = barrier.Call(txGet(), f)
+		err = barrier.CallWithDB(pdbGet(), f)
 		logger.FatalIfError(err)
 	} else {
 		tx := txGet()
diff --git a/test/busi/barrier.go b/test/busi/barrier.go
index 7179e14..b80cb55 100644
--- a/test/busi/barrier.go
+++ b/test/busi/barrier.go
@@ -22,49 +22,49 @@ func init() {
 	setupFuncs["BarrierSetup"] = func(app *gin.Engine) {
 		app.POST(BusiAPI+"/SagaBTransIn", dtmutil.WrapHandler(func(c *gin.Context) interface{} {
 			barrier := MustBarrierFromGin(c)
-			return barrier.Call(txGet(), func(tx *sql.Tx) error {
+			return barrier.CallWithDB(pdbGet(), func(tx *sql.Tx) error {
 				return SagaAdjustBalance(tx, TransInUID, reqFrom(c).Amount, reqFrom(c).TransInResult)
 			})
 		}))
 		app.POST(BusiAPI+"/SagaBTransInCom", dtmutil.WrapHandler(func(c *gin.Context) interface{} {
 			barrier := MustBarrierFromGin(c)
-			return barrier.Call(txGet(), func(tx *sql.Tx) error {
+			return barrier.CallWithDB(pdbGet(), func(tx *sql.Tx) error {
 				return SagaAdjustBalance(tx, TransInUID, -reqFrom(c).Amount, "")
 			})
 		}))
 		app.POST(BusiAPI+"/SagaB2TransIn", dtmutil.WrapHandler(func(c *gin.Context) interface{} {
 			barrier := MustBarrierFromGin(c)
-			err := barrier.Call(txGet(), func(tx *sql.Tx) error {
+			err := barrier.CallWithDB(pdbGet(), func(tx *sql.Tx) error {
 				return SagaAdjustBalance(tx, TransInUID, reqFrom(c).Amount/2, reqFrom(c).TransInResult)
 			})
 			if err != nil {
 				return err
 			}
-			return barrier.Call(txGet(), func(tx *sql.Tx) error {
+			return barrier.CallWithDB(pdbGet(), func(tx *sql.Tx) error {
 				return SagaAdjustBalance(tx, TransInUID, reqFrom(c).Amount/2, reqFrom(c).TransInResult)
 			})
 		}))
 		app.POST(BusiAPI+"/SagaB2TransInCom", dtmutil.WrapHandler(func(c *gin.Context) interface{} {
 			barrier := MustBarrierFromGin(c)
-			err := barrier.Call(txGet(), func(tx *sql.Tx) error {
+			err := barrier.CallWithDB(pdbGet(), func(tx *sql.Tx) error {
 				return SagaAdjustBalance(tx, TransInUID, -reqFrom(c).Amount/2, "")
 			})
 			if err != nil {
 				return err
 			}
-			return barrier.Call(txGet(), func(tx *sql.Tx) error {
+			return barrier.CallWithDB(pdbGet(), func(tx *sql.Tx) error {
 				return SagaAdjustBalance(tx, TransInUID, -reqFrom(c).Amount, "")
 			})
 		}))
 		app.POST(BusiAPI+"/SagaBTransOut", dtmutil.WrapHandler(func(c *gin.Context) interface{} {
 			barrier := MustBarrierFromGin(c)
-			return barrier.Call(txGet(), func(tx *sql.Tx) error {
+			return barrier.CallWithDB(pdbGet(), func(tx *sql.Tx) error {
 				return SagaAdjustBalance(tx, TransOutUID, -reqFrom(c).Amount, reqFrom(c).TransOutResult)
 			})
 		}))
 		app.POST(BusiAPI+"/SagaBTransOutCom", dtmutil.WrapHandler(func(c *gin.Context) interface{} {
 			barrier := MustBarrierFromGin(c)
-			return barrier.Call(txGet(), func(tx *sql.Tx) error {
+			return barrier.CallWithDB(pdbGet(), func(tx *sql.Tx) error {
 				return SagaAdjustBalance(tx, TransOutUID, reqFrom(c).Amount, "")
 			})
 		}))
@@ -82,17 +82,17 @@ func init() {
 			if req.TransInResult != "" {
 				return dtmcli.String2DtmError(req.TransInResult)
 			}
-			return MustBarrierFromGin(c).Call(txGet(), func(tx *sql.Tx) error {
+			return MustBarrierFromGin(c).CallWithDB(pdbGet(), func(tx *sql.Tx) error {
 				return tccAdjustTrading(tx, TransInUID, req.Amount)
 			})
 		}))
 		app.POST(BusiAPI+"/TccBTransInConfirm", dtmutil.WrapHandler(func(c *gin.Context) interface{} {
-			return MustBarrierFromGin(c).Call(txGet(), func(tx *sql.Tx) error {
+			return MustBarrierFromGin(c).CallWithDB(pdbGet(), func(tx *sql.Tx) error {
 				return tccAdjustBalance(tx, TransInUID, reqFrom(c).Amount)
 			})
 		}))
 		app.POST(BusiAPI+"/TccBTransInCancel", dtmutil.WrapHandler(func(c *gin.Context) interface{} {
-			return MustBarrierFromGin(c).Call(txGet(), func(tx *sql.Tx) error {
+			return MustBarrierFromGin(c).CallWithDB(pdbGet(), func(tx *sql.Tx) error {
 				return tccAdjustTrading(tx, TransInUID, -reqFrom(c).Amount)
 			})
 		}))
@@ -170,7 +170,7 @@ func init() {
 				})
 			}
 
-			return bb.Call(txGet(), func(tx *sql.Tx) error {
+			return bb.CallWithDB(pdbGet(), func(tx *sql.Tx) error {
 				return tccAdjustTrading(tx, TransOutUID, -req.Amount)
 			})
 		}))
@@ -178,7 +178,7 @@ func init() {
 			if reqFrom(c).Store == Redis || reqFrom(c).Store == Mongo {
 				return nil
 			}
-			return MustBarrierFromGin(c).Call(txGet(), func(tx *sql.Tx) error {
+			return MustBarrierFromGin(c).CallWithDB(pdbGet(), func(tx *sql.Tx) error {
 				return tccAdjustBalance(tx, TransOutUID, -reqFrom(c).Amount)
 			})
 		}))
@@ -198,7 +198,7 @@ func TccBarrierTransOutCancel(c *gin.Context) interface{} {
 			return SagaMongoAdjustBalance(sc, sc.Client(), TransOutUID, reqFrom(c).Amount, "")
 		})
 	}
-	return bb.Call(txGet(), func(tx *sql.Tx) error {
+	return bb.CallWithDB(pdbGet(), func(tx *sql.Tx) error {
 		return tccAdjustTrading(tx, TransOutUID, reqFrom(c).Amount)
 	})
 }
@@ -212,21 +212,21 @@ func (s *busiServer) TransInBSaga(ctx context.Context, in *BusiReq) (*emptypb.Em
 
 func (s *busiServer) TransOutBSaga(ctx context.Context, in *BusiReq) (*emptypb.Empty, error) {
 	barrier := MustBarrierFromGrpc(ctx)
-	return &emptypb.Empty{}, barrier.Call(txGet(), func(tx *sql.Tx) error {
+	return &emptypb.Empty{}, barrier.CallWithDB(pdbGet(), func(tx *sql.Tx) error {
 		return sagaGrpcAdjustBalance(tx, TransOutUID, -in.Amount, in.TransOutResult)
 	})
 }
 
 func (s *busiServer) TransInRevertBSaga(ctx context.Context, in *BusiReq) (*emptypb.Empty, error) {
 	barrier := MustBarrierFromGrpc(ctx)
-	return &emptypb.Empty{}, barrier.Call(txGet(), func(tx *sql.Tx) error {
+	return &emptypb.Empty{}, barrier.CallWithDB(pdbGet(), func(tx *sql.Tx) error {
 		return sagaGrpcAdjustBalance(tx, TransInUID, -in.Amount, "")
 	})
 }
 
 func (s *busiServer) TransOutRevertBSaga(ctx context.Context, in *BusiReq) (*emptypb.Empty, error) {
 	barrier := MustBarrierFromGrpc(ctx)
-	return &emptypb.Empty{}, barrier.Call(txGet(), func(tx *sql.Tx) error {
+	return &emptypb.Empty{}, barrier.CallWithDB(pdbGet(), func(tx *sql.Tx) error {
 		return sagaGrpcAdjustBalance(tx, TransOutUID, in.Amount, "")
 	})
 }
diff --git a/test/busi/quick_start.go b/test/busi/quick_start.go
index 6d57af5..2f33d72 100644
--- a/test/busi/quick_start.go
+++ b/test/busi/quick_start.go
@@ -7,6 +7,7 @@ import (
 
 	"github.com/dtm-labs/dtm/dtmcli"
 	"github.com/gin-gonic/gin"
+	"github.com/lithammer/shortuuid/v3"
 )
 
 // busi address
@@ -59,7 +60,7 @@ const dtmServer = "http://localhost:36789/api/dtmsvr"
 func QsFireRequest() string {
 	req := &gin.H{"amount": 30} // load of micro-service
 	// DtmServer is the url of dtm
-	saga := dtmcli.NewSaga(dtmServer, dtmcli.MustGenGid(dtmServer)).
+	saga := dtmcli.NewSaga(dtmServer, shortuuid.New()).
 		// add a TransOut subtraction，forward operation with url: qsBusi+"/TransOut", reverse compensation operation with url: qsBusi+"/TransOutCompensate"
 		Add(qsBusi+"/TransOut", qsBusi+"/TransOutCompensate", req).
 		// add a TransIn subtraction, forward operation with url: qsBusi+"/TransIn", reverse compensation operation with url: qsBusi+"/TransInCompensate"