feat: grant allowance

cmd/cmd_allowance.go

@@ -0,0 +1,83 @@
+package main
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"time"
+
+	"cosmossdk.io/math"
+
+	"github.com/bnb-chain/greenfield/sdk/types"
+	sdk "github.com/cosmos/cosmos-sdk/types"
+	"github.com/urfave/cli/v2"
+)
+
+// cmdGrantAllowance grant allowance to a account
+func cmdGrantAllowance() *cli.Command {
+	return &cli.Command{
+		Name:      "grant",
+		Action:    grantAllowance,
+		Usage:     "grant allowance",
+		ArgsUsage: "",
+		Description: `
+The command is used to grant allowance to the grantee. --grantee defines the grantee address, --expire defines the expiration time in second
+
+Examples:
+$ gnfd-cmd fee grant --grantee 0x... --allowance 10000000000000000 --expire 3600`,
+		Flags: []cli.Flag{
+			&cli.StringFlag{
+				Name:  granteeFlag,
+				Value: "",
+				Usage: "the address hex string of the grantee",
+			},
+			&cli.StringFlag{
+				Name:  allowanceFlag,
+				Value: "",
+				Usage: "the bnb in wei",
+			},
+			&cli.Uint64Flag{
+				Name:  expireTimeFlag,
+				Value: 0,
+				Usage: "set the expire unix time stamp of the allowance",
+			},
+		},
+	}
+}
+
+func grantAllowance(ctx *cli.Context) error {
+	grantee := ctx.String(granteeFlag)
+	granteeAddr, err := sdk.AccAddressFromHexUnsafe(grantee)
+	if err != nil {
+		return err
+	}
+	allowancesStr := ctx.String(allowanceFlag)
+	allowance, ok := math.NewIntFromString(allowancesStr)
+	if !ok {
+		return toCmdErr(errors.New("convert string to int failed"))
+	}
+	var expireTime *time.Time
+	if ctx.Uint64(expireTimeFlag) > 0 {
+		temp := time.Unix(int64(ctx.Uint64(expireTimeFlag)), 0)
+		expireTime = &temp
+	}
+
+	client, err := NewClient(ctx, ClientOptions{IsQueryCmd: false})
+	if err != nil {
+		return toCmdErr(err)
+	}
+	c, cancelSetTag := context.WithCancel(globalContext)
+	defer cancelSetTag()
+
+	txHash, err := client.GrantBasicAllowance(c, granteeAddr.String(), allowance, expireTime, types.TxOption{})
+	if err != nil {
+		return toCmdErr(err)
+	}
+	err = waitTxnStatus(client, c, txHash, "GrantBasicAllowance")
+	if err != nil {
+		return toCmdErr(err)
+	}
+	fmt.Printf("Grant %s to %s succ, txHash=%s\n", allowance.String(), grantee, txHash)
+
+	return nil
+}

cmd/main.go

@@ -173,6 +173,13 @@ func main() {
 					cmdSetDefaultAccount(),
 				},
 			},
+			{
+				Name:  "fee",
+				Usage: "support fee grant operation functions",
+				Subcommands: []*cli.Command{
+					cmdGrantAllowance(),
+				},
+			},
 			{
 				Name:  "task",
 				Usage: "support the batch upload file",

cmd/utils.go

@@ -60,6 +60,7 @@ const (
 	groupMemberExpireFlag   = "expireTime"
 	groupIDFlag             = "groupId"
 	granteeFlag             = "grantee"
+	allowanceFlag           = "allowance"
 	actionsFlag             = "actions"
 	effectFlag              = "effect"
 	expireTimeFlag          = "expire"