func MakeAbi(abiData []byte) (abi.ABI, error) {
if len(abiData) == 0 {
return abi.NullABI, nil
}
abiSpec := new(abi.ABI)
if err := abiSpec.UnmarshalJSON(abiData); err != nil {
log.Println("failed to unmarshal", err)
return abi.NullABI, err
}
return *abiSpec, nil
}
func PackArgsABI(abiSpec abi.ABI, data ...string) (string, error) {
funcName := data[0]
args := data[1:]
a := []interface{}{}
for _, aa := range args {
bb, _ := hex.DecodeString(common.StripHex(common.CoerceHexAndPad(aa, true)))
a = append(a, bb)
}
packedBytes, err := abiSpec.Pack(funcName, args)
if err != nil {
return "", err
}
packed := hex.EncodeToString(packedBytes)
return packed, nil
}