Why Go
- Case Studies
  
  Common problems companies solve with Go
- Use Cases
  
  Stories about how and why companies use Go
- Security
  
  How Go can help keep you secure by default
Learn
Docs
- Effective Go
  
  Tips for writing clear, performant, and idiomatic Go code
- Go User Manual
  
  A complete introduction to building software with Go
- Standard library
  
  Reference documentation for Go's standard library
- Release Notes
  
  Learn what's new in each Go release
- API
  
  Reference documentation for the pkg.go.dev API
Packages
Community
- Recorded Talks
  
  Videos from prior events
- Meetups
  
  Meet other local Go developers
- Conferences
  
  Learn and network with Go developers from around the world
- Go blog
  
  The Go project's official blog.
- Go project
  
  Get help and stay informed from Go
- Get connected

flashbots

package

Go to main page

Versions in this module

v1

v1.20.8

Aug 4, 2026

v1.20.8-dev

Jul 14, 2026

v1.20.7

Jul 14, 2026

v1.20.6

Jul 13, 2026

v1.20.6-dev

Jul 9, 2026

v1.20.5

Jun 22, 2026

v1.20.4

Jun 15, 2026

Changes in this version

+ const DefaultBundleBlockCount

+ const DefaultSubmissionTimeout

+ const JsonRpcInternalError

+ const JsonRpcInvalidParams

+ const JsonRpcInvalidRequest

+ const JsonRpcMethodNotFound

+ const JsonRpcParseError

+ var AllBuilders = []string

+ var FlashbotsUrlPerNetwork = map[uint64]string

+ func SubmitBundleAndWait(ctx context.Context, logger *slog.Logger, ethRpc EthRpc, relayUrl string, ...) (bool, error)

+ type Bundle struct

+ func NewBundle() *Bundle

+ func NewBundleWithTransactions(transactions []*types.Transaction) *Bundle

+ func (b *Bundle) AddTransaction(tx *types.Transaction)

+ func (b *Bundle) AddTransactions(txs []*types.Transaction)

+ func (b *Bundle) Builders() []string

+ func (b *Bundle) BundleHash() common.Hash

+ func (b *Bundle) Copy() *Bundle

+ func (b *Bundle) GetBundelsForNextNBlocks(n uint64) ([]*Bundle, error)

+ func (b *Bundle) MaxTimestamp() int64

+ func (b *Bundle) MaximumGasFeePaid() (feePaid *big.Int)

+ func (b *Bundle) MinTimestamp() int64

+ func (b *Bundle) ReplacementUuid() string

+ func (b *Bundle) RevertingTxHashes() []string

+ func (b *Bundle) SetMaxTimestamp(maxTimestamp int64) error

+ func (b *Bundle) SetMinTimestamp(minTimestamp int64) error

+ func (b *Bundle) SetReplacementUuid(replacementUuid string) error

+ func (b *Bundle) SetRevertingTxHash(revertingTxHash string)

+ func (b *Bundle) SetRevertingTxHashes(revertingTxHashes []string)

+ func (b *Bundle) SetTargetBlockNumber(blocknumber uint64) error

+ func (b *Bundle) TargetBlockNumber() uint64

+ func (b *Bundle) Transactions() []*types.Transaction

+ func (b *Bundle) UseAllBuilders(networkId uint64)

+ type BundleStats struct

+ ConsideredByBuilders []struct{ ... }

+ IsHighPriority bool

+ IsSimulated bool

+ ReceivedAt string

+ SealedByBuilders []struct{ ... }

+ SimulatedAt string

+ type BundleStatsV2 struct

+ ConsideredByBuilders []struct{ ... }

+ IsHighPriority bool

+ IsSimulated bool

+ ReceivedAt string

+ SealedByBuilders []struct{ ... }

+ SimulatedAt string

+ type ErrorType struct

+ Code int

+ Message string

+ type EthRpc interface

+ BlockNumber func(ctx context.Context) (uint64, error)

+ ChainID func(ctx context.Context) (*big.Int, error)

+ TransactionReceipt func(ctx context.Context, txHash common.Hash) (*types.Receipt, error)

+ type FlashbotsClient struct

+ func NewClient(logger *slog.Logger, ethRpc EthRpc, relayUrl string, ...) (*FlashbotsClient, error)

+ func NewClientRpcString(logger *slog.Logger, ethRpcStr string, relayUrl string, ...) (*FlashbotsClient, error)

+ func (client *FlashbotsClient) Call(method string, params ...interface{}) (json.RawMessage, error)

+ func (client *FlashbotsClient) CallWithAdditionalHeaders(method string, headers map[string]string, params ...interface{}) (json.RawMessage, error)

+ func (client *FlashbotsClient) CancelBundle(uuid string) error

+ func (client *FlashbotsClient) CheckBundleIncusion(ctx context.Context, bundle *Bundle) (bool, error)

+ func (client *FlashbotsClient) GetBundleStats(bundle *Bundle) (*BundleStats, error)

+ func (client *FlashbotsClient) GetBundleStatsV2(bundle *Bundle) (*BundleStatsV2, error)

+ func (client *FlashbotsClient) GetSbundleStats(bundle *Bundle) (*BundleStats, error)

+ func (client *FlashbotsClient) SendBundle(bundle *Bundle) (common.Hash, bool, error)

+ func (client *FlashbotsClient) SendBundleAndWait(ctx context.Context, bundle *Bundle) (bool, error)

+ func (client *FlashbotsClient) SendBundleNTimes(originalBundle *Bundle, n uint64) (bundlesToSend []*Bundle, hash common.Hash, smart bool, err error)

+ func (client *FlashbotsClient) SendNBundleAndWait(ctx context.Context, bundle *Bundle, n uint64) (bool, error)

+ func (client *FlashbotsClient) SimulateBundle(bundle *Bundle, stateBlocknumber uint64) (*SimulationResultBundle, bool, error)

+ func (client *FlashbotsClient) UpdateFeeRefundRecipient(newFeeRefundRecipient common.Address) error

+ func (client *FlashbotsClient) WaitForBundleInclusion(ctx context.Context, bundle *Bundle) (bool, error)

+ type RawSimulationResultBundle struct

+ BundleGasPrice string

+ BundleHash string

+ CoinbaseDiff string

+ EthSentToCoinbase string

+ FirstRevert string

+ GasFees string

+ Results []RawSimulationResultTransaction

+ StateBlockNumber uint64

+ TotalGasUsed uint64

+ type RawSimulationResultTransaction struct

+ CoinbaseDiff string

+ Error string

+ EthSentToCoinbase string

+ FromAddress string

+ GasFees string

+ GasPrice string

+ GasUsed uint64

+ RevertReason string

+ ToAddress string

+ TxHash string

+ Value string

+ type Request struct

+ ID int

+ JSONRPC string

+ Method string

+ Params []interface{}

+ type Response struct

+ Error ErrorType

+ ID int

+ JSONRPC string

+ Result json.RawMessage

+ type SimulationResultBundle struct

+ BundleGasPrice *big.Int

+ BundleHash common.Hash

+ CoinbaseDiff *big.Int

+ EthSentToCoinbase *big.Int

+ FirstRevert common.Hash

+ GasFees *big.Int

+ Results []SimulationResultTransaction

+ StateBlockNumber uint64

+ TotalGasUsed uint64

+ type SimulationResultTransaction struct

+ CoinbaseDiff *big.Int

+ Error string

+ EthSentToCoinbase *big.Int

+ FromAddress common.Address

+ GasFees *big.Int

+ GasPrice *big.Int

+ GasUsed uint64

+ RevertReason string

+ ToAddress common.Address

+ TxHash common.Hash

+ Value *big.Int