/
balance.go
107 lines (89 loc) · 3.52 KB
/
balance.go
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package query
import (
"context"
"fmt"
"github.com/bcdevtools/devd/cmd/utils"
"github.com/ethereum/go-ethereum"
"github.com/ethereum/go-ethereum/common"
"github.com/spf13/cobra"
"math/big"
)
func GetQueryBalanceCommand() *cobra.Command {
cmd := &cobra.Command{
Use: "balance [account_address] [?optional_erc20_contracts...]",
Aliases: []string{"b"},
Short: "Get ERC-20 token information. If account address is provided, it will query the balance of the account (bech32 is accepted).",
Args: cobra.MinimumNArgs(1),
Run: func(cmd *cobra.Command, args []string) {
ethClient8545, _ := mustGetEthClient(cmd, false)
var bz []byte
evmAddrs, err := getEvmAddressFromAnyFormatAddress(args...)
if err != nil {
utils.PrintlnStdErr("ERR:", err)
return
}
contextHeight := readContextHeightFromFlag(cmd)
accountAddr := evmAddrs[0]
fmt.Println("Account", accountAddr)
if len(evmAddrs) == 1 {
nativeBalance, err := ethClient8545.BalanceAt(context.Background(), accountAddr, contextHeight)
utils.ExitOnErr(err, "failed to get account balance")
display, high, low, err := utils.ConvertNumberIntoDisplayWithExponent(nativeBalance, 18)
utils.ExitOnErr(err, "failed to convert number into display with exponent")
fmt.Println("> Native balance:")
fmt.Println(" - Decimal:", 18)
fmt.Println(" - Raw:", nativeBalance)
fmt.Println(" - Display:", display)
fmt.Println(" + High:", high)
fmt.Println(" + Low:", low)
}
for i := 1; i < len(evmAddrs); i++ {
contractAddr := evmAddrs[i]
bz, err = ethClient8545.CallContract(context.Background(), ethereum.CallMsg{
To: &contractAddr,
Data: []byte{0x95, 0xd8, 0x9b, 0x41}, // symbol()
}, contextHeight)
if err != nil {
utils.PrintlnStdErr("ERR: failed to get symbol for contract", contractAddr, ":", err)
continue
}
contractSymbol, err := utils.AbiDecodeString(bz)
if err != nil {
utils.PrintlnStdErr("ERR: failed to decode symbol for contract", contractAddr, ":", err)
continue
}
bz, err = ethClient8545.CallContract(context.Background(), ethereum.CallMsg{
To: &contractAddr,
Data: []byte{0x31, 0x3c, 0xe5, 0x67}, // decimals()
}, contextHeight)
if err != nil {
utils.PrintlnStdErr("ERR: failed to get decimals for contract", contractAddr, ":", err)
continue
}
contractDecimals := new(big.Int).SetBytes(bz)
var tokenBalance *big.Int
bz, err = ethClient8545.CallContract(context.Background(), ethereum.CallMsg{
To: &contractAddr,
Data: append([]byte{0x70, 0xa0, 0x82, 0x31}, common.BytesToHash(accountAddr.Bytes()).Bytes()...), // balanceOf(address)
}, contextHeight)
if err != nil {
utils.PrintlnStdErr("ERR: failed to get contract token", contractAddr, "balance for", accountAddr, ":", err)
continue
}
tokenBalance = new(big.Int).SetBytes(bz)
display, high, low, err := utils.ConvertNumberIntoDisplayWithExponent(tokenBalance, int(contractDecimals.Int64()))
utils.ExitOnErr(err, "failed to convert number into display with exponent")
fmt.Printf("> ERC-20 %s\n", contractAddr)
fmt.Println(" - Symbol:", contractSymbol)
fmt.Println(" - Decimals:", contractDecimals.Uint64())
fmt.Println(" - Raw:", tokenBalance)
fmt.Println(" - Display:", display, contractSymbol)
fmt.Println(" + High:", high)
fmt.Println(" + Low:", low)
}
},
}
cmd.Flags().String(flagRpc, "", flagEvmRpcDesc)
cmd.Flags().Int64(flagHeight, 0, "query balance at specific height")
return cmd
}