Update asset.go

vendor/github.com/33cn/chain33/system/dapp/commands/asset.go

@@ -5,7 +5,6 @@
 package commands
 
 import (
-	"encoding/json"
 	"fmt"
 	"math"
 	"os"
@@ -133,15 +132,10 @@ func CreateAssetSendToExec(cmd *cobra.Command, args []string, fromExec string) {
 		ExecName:  exec,
 	}
 
-	data, err := json.Marshal(&payload)
-	if err != nil {
-		fmt.Fprintln(os.Stderr, err)
-		return
-	}
 	params := &rpcTypes.CreateTxIn{
 		Execer:     types.ExecName(fromExec),
 		ActionName: "TransferToExec",
-		Payload:    data,
+		Payload:    types.MustPBToJSON(payload),
 	}
 
 	rpcLaddr, _ := cmd.Flags().GetString("rpc_laddr")
@@ -171,15 +165,10 @@ func CreateAssetWithdraw(cmd *cobra.Command, args []string, fromExec string) {
 		Cointoken: symbol,
 		ExecName:  exec,
 	}
-	data, err := json.Marshal(&payload)
-	if err != nil {
-		fmt.Fprintln(os.Stderr, err)
-		return
-	}
 	params := &rpcTypes.CreateTxIn{
 		Execer:     types.ExecName(fromExec),
 		ActionName: "Withdraw",
-		Payload:    data,
+		Payload:    types.MustPBToJSON(payload),
 	}
 
 	rpcLaddr, _ := cmd.Flags().GetString("rpc_laddr")
@@ -200,15 +189,10 @@ func CreateAssetTransfer(cmd *cobra.Command, args []string, fromExec string) {
 		Note:      []byte(note),
 		Cointoken: symbol,
 	}
-	data, err := json.Marshal(&payload)
-	if err != nil {
-		fmt.Fprintln(os.Stderr, err)
-		return
-	}
 	params := &rpcTypes.CreateTxIn{
 		Execer:     types.ExecName(fromExec),
 		ActionName: "Transfer",
-		Payload:    data,
+		Payload:    types.MustPBToJSON(payload),
 	}
 
 	rpcLaddr, _ := cmd.Flags().GetString("rpc_laddr")