go-ethereum/eth/catalyst/api_testing.go
Marius van der Wijden e40aa46e88
eth/catalyst: implement testing_buildBlockV1 (#33656)
implements
https://github.com/ethereum/execution-apis/pull/710/changes#r2712256529

---------

Co-authored-by: Felix Lange <fjl@twurst.com>
2026-02-23 15:56:31 +01:00

79 lines
2.8 KiB
Go

// Copyright 2026 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package catalyst
import (
"errors"
"github.com/ethereum/go-ethereum/beacon/engine"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/common/hexutil"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/eth"
"github.com/ethereum/go-ethereum/miner"
"github.com/ethereum/go-ethereum/rpc"
)
// testingAPI implements the testing_ namespace.
// It's an engine-API adjacent namespace for testing purposes.
type testingAPI struct {
eth *eth.Ethereum
}
func newTestingAPI(backend *eth.Ethereum) rpc.API {
return rpc.API{
Namespace: "testing",
Service: &testingAPI{backend},
Version: "1.0",
Authenticated: false,
}
}
func (api *testingAPI) BuildBlockV1(parentHash common.Hash, payloadAttributes engine.PayloadAttributes, transactions *[]hexutil.Bytes, extraData *hexutil.Bytes) (*engine.ExecutionPayloadEnvelope, error) {
if api.eth.BlockChain().CurrentBlock().Hash() != parentHash {
return nil, errors.New("parentHash is not current head")
}
// If transactions is empty but not nil, build an empty block
// If the transactions is nil, build a block with the current transactions from the txpool
// If the transactions is not nil and not empty, build a block with the transactions
buildEmpty := transactions != nil && len(*transactions) == 0
var txs []*types.Transaction
if transactions != nil {
dec := make([][]byte, 0, len(*transactions))
for _, tx := range *transactions {
dec = append(dec, tx)
}
var err error
txs, err = engine.DecodeTransactions(dec)
if err != nil {
return nil, err
}
}
extra := make([]byte, 0)
if extraData != nil {
extra = *extraData
}
args := &miner.BuildPayloadArgs{
Parent: parentHash,
Timestamp: payloadAttributes.Timestamp,
FeeRecipient: payloadAttributes.SuggestedFeeRecipient,
Random: payloadAttributes.Random,
Withdrawals: payloadAttributes.Withdrawals,
BeaconRoot: payloadAttributes.BeaconRoot,
}
return api.eth.Miner().BuildTestingPayload(args, txs, buildEmpty, extra)
}