TransBase setup func

client/dtmgrpc/msg.go

@@ -24,8 +24,14 @@ type MsgGrpc struct {
 }
 
 // NewMsgGrpc create new msg
-func NewMsgGrpc(server string, gid string) *MsgGrpc {
+func NewMsgGrpc(server string, gid string, opts ...TransBaseOption) *MsgGrpc {
-	return &MsgGrpc{Msg: *dtmcli.NewMsg(server, gid)}
+	mg := &MsgGrpc{Msg: *dtmcli.NewMsg(server, gid)}
+
+	for _, opt := range opts {
+		opt(&mg.TransBase)
+	}
+
+	return mg
 }
 
 // Add add a new step

client/dtmgrpc/options.go

@@ -0,0 +1,15 @@
+package dtmgrpc
+
+import (
+	"github.com/dtm-labs/dtm/client/dtmcli/dtmimp"
+)
+
+// TransBaseOption setup func for TransBase
+type TransBaseOption func(tb *dtmimp.TransBase)
+
+// WithBranchHeaders setup TransBase.BranchHeaders
+func WithBranchHeaders(headers map[string]string) TransBaseOption {
+	return func(tb *dtmimp.TransBase) {
+		tb.BranchHeaders = headers
+	}
+}