// VulcanizeDB // Copyright © 2019 Vulcanize // This program is free software: you can redistribute it and/or modify // it under the terms of the GNU Affero General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // This program is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU Affero General Public License for more details. // You should have received a copy of the GNU Affero General Public License // along with this program. If not, see . package core import ( "context" "math/big" "github.com/ethereum/go-ethereum" "github.com/ethereum/go-ethereum/common" "github.com/ethereum/go-ethereum/core/types" ) type EthClient interface { BlockByNumber(ctx context.Context, number *big.Int) (*types.Block, error) CallContract(ctx context.Context, msg ethereum.CallMsg, blockNumber *big.Int) ([]byte, error) FilterLogs(ctx context.Context, q ethereum.FilterQuery) ([]types.Log, error) HeaderByNumber(ctx context.Context, number *big.Int) (*types.Header, error) TransactionSender(ctx context.Context, tx *types.Transaction, block common.Hash, index uint) (common.Address, error) TransactionReceipt(ctx context.Context, txHash common.Hash) (*types.Receipt, error) }