forked from wealdtech/ethereal
/
tokenbalance.go
75 lines (62 loc) · 2.41 KB
/
tokenbalance.go
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// Copyright © 2017 Weald Technology Trading
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package cmd
import (
"fmt"
"math/big"
"os"
"github.com/spf13/cobra"
"github.com/wealdtech/ethereal/cli"
"github.com/wealdtech/ethereal/ens"
"github.com/wealdtech/ethereal/util"
)
var tokenBalanceHolderAddress string
var tokenBalanceRaw bool
// tokenBalanceCmd represents the ether balance command
var tokenBalanceCmd = &cobra.Command{
Use: "balance",
Short: "Obtain the token balance for an address",
Long: `Obtain the token balance for an address. For example:
ethereal token balance --token=omg --holder=0x5FfC014343cd971B7eb70732021E26C35B744cc4
In quiet mode this will return 0 if the balance is greater than 0, otherwise 1.`,
Run: func(cmd *cobra.Command, args []string) {
cli.Assert(tokenBalanceHolderAddress != "", quiet, "--holder is required")
address, err := ens.Resolve(client, tokenBalanceHolderAddress)
cli.ErrCheck(err, quiet, fmt.Sprintf("Failed to resolve holder address %s", tokenBalanceHolderAddress))
cli.Assert(tokenStr != "", quiet, "--token is required")
token, err := tokenContract(tokenStr)
cli.ErrCheck(err, quiet, "Failed to obtain token contract")
decimals, err := token.Decimals(nil)
cli.ErrCheck(err, quiet, "Failed to obtain token decimals")
balance, err := token.BalanceOf(nil, address)
cli.ErrCheck(err, quiet, "Failed to obtain token balance")
if quiet {
if balance.Cmp(big.NewInt(0)) == 0 {
os.Exit(1)
} else {
os.Exit(0)
}
}
if tokenBalanceRaw {
fmt.Printf("%s\n", balance.String())
} else {
fmt.Printf("%s\n", util.TokenValueToString(balance, decimals, false))
}
},
}
func init() {
tokenFlags(tokenBalanceCmd)
tokenCmd.AddCommand(tokenBalanceCmd)
tokenBalanceCmd.Flags().BoolVar(&tokenBalanceRaw, "raw", false, "Display raw output (no decimals)")
tokenBalanceCmd.Flags().StringVar(&tokenBalanceHolderAddress, "holder", "", "Holder of tokens")
}