33 lines
809 B
Go
33 lines
809 B
Go
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package common
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import (
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"fmt"
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"math/big"
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"strings"
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"github.com/ethereum/go-ethereum/accounts/abi"
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"github.com/ethereum/go-ethereum/common"
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"github.com/status-im/status-go/contracts/ierc20"
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)
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func PackApprovalInputData(amountIn *big.Int, approvalContractAddress *common.Address) ([]byte, error) {
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if approvalContractAddress == nil || *approvalContractAddress == ZeroAddress() {
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return []byte{}, nil
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}
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erc20ABI, err := abi.JSON(strings.NewReader(ierc20.IERC20ABI))
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if err != nil {
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return []byte{}, err
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}
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return erc20ABI.Pack("approve", approvalContractAddress, amountIn)
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}
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func GetTokenIdFromSymbol(symbol string) (*big.Int, error) {
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id, success := big.NewInt(0).SetString(symbol, 0)
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if !success {
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return nil, fmt.Errorf("failed to convert %s to big.Int", symbol)
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}
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return id, nil
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}
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