txmgr

package
v2.2.0 Latest Latest
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 Go to latest Published: Jun 12, 2023 License: MIT Imports: 50 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	// InFlightTransactionRecheckInterval controls how often the Broadcaster
	// will poll the unconfirmed queue to see if it is allowed to send another
	// transaction
	InFlightTransactionRecheckInterval = 1 * time.Second

	// TransmitCheckTimeout controls the maximum amount of time that will be
	// spent on the transmit check.
	TransmitCheckTimeout = 2 * time.Second
)
View Source 
const (
	// TODO: change Eth prefix: https://smartcontract-it.atlassian.net/browse/BCI-1198
	EthTxUnstarted               = txmgrtypes.TxState("unstarted")
	EthTxInProgress              = txmgrtypes.TxState("in_progress")
	EthTxFatalError              = txmgrtypes.TxState("fatal_error")
	EthTxUnconfirmed             = txmgrtypes.TxState("unconfirmed")
	EthTxConfirmed               = txmgrtypes.TxState("confirmed")
	EthTxConfirmedMissingReceipt = txmgrtypes.TxState("confirmed_missing_receipt")

	// TransmitCheckerTypeSimulate is a checker that simulates the transaction before executing on
	// chain.
	TransmitCheckerTypeSimulate = txmgrtypes.TransmitCheckerType("simulate")

	// TransmitCheckerTypeVRFV1 is a checker that will not submit VRF V1 fulfillment requests that
	// have already been fulfilled. This could happen if the request was fulfilled by another node.
	TransmitCheckerTypeVRFV1 = txmgrtypes.TransmitCheckerType("vrf_v1")

	// TransmitCheckerTypeVRFV2 is a checker that will not submit VRF V2 fulfillment requests that
	// have already been fulfilled. This could happen if the request was fulfilled by another node.
	TransmitCheckerTypeVRFV2 = txmgrtypes.TransmitCheckerType("vrf_v2")
)
View Source 
const DefaultResenderPollInterval = 5 * time.Second

pollInterval is the maximum amount of time in addition to EthTxResendAfterThreshold that we will wait before resending an attempt

Variables

View Source 
var (
	// ErrCouldNotGetReceipt is the error string we save if we reach our finality depth for a confirmed transaction without ever getting a receipt
	// This most likely happened because an external wallet used the account for this nonce
	ErrCouldNotGetReceipt = "could not get receipt"
)
View Source 
var ErrInvalidQOpt = errors.New("evmTxStore: Invalid QOpt")
View Source 
var ErrKeyNotUpdated = errors.New("evmTxStore: Key not updated")
View Source 
var Max256BitUInt = big.NewInt(0).Exp(big.NewInt(2), big.NewInt(256), nil)

Functions

func DbEthTxAttemptToEthTxAttempt added in v2.1.0 

func DbEthTxAttemptToEthTxAttempt(dbEthTxAttempt DbEthTxAttempt, evmAttempt *EvmTxAttempt)

func DbEthTxToEthTx added in v2.1.0 

func DbEthTxToEthTx(dbEthTx DbEthTx, evmEthTx *EvmTx)

func DbReceiptFromEvmReceipt added in v2.1.0 

func DbReceiptFromEvmReceipt(evmReceipt *EvmReceipt) dbReceipt

func GetGethSignedTx added in v2.2.0 

func GetGethSignedTx(signedRawTx []byte) (*types.Transaction, error)

GetGethSignedTx decodes the SignedRawTx into a types.Transaction struct

func NewEvmTxAttemptBuilder 

func NewEvmTxAttemptBuilder(chainID big.Int, config Config, keystore TxAttemptSigner[common.Address], estimator gas.EvmFeeEstimator) *evmTxAttemptBuilder

func NewEvmTxmClient added in v2.2.0 

func NewEvmTxmClient(c evmclient.Client) *evmTxmClient

func NewEvmTxmConfig added in v2.1.0 

func NewEvmTxmConfig(c Config) *evmTxmConfig

func NewQueueingTxStrategy 

func NewQueueingTxStrategy(subject uuid.UUID, queueSize uint32, queryTimeout time.Duration) (strategy txmgrtypes.TxStrategy)

NewQueueingTxStrategy creates a new TxStrategy that drops the oldest transactions after the queue size is exceeded if a queue size is specified, and otherwise does not drop transactions.

func NewSendEveryStrategy 

func NewSendEveryStrategy() txmgrtypes.TxStrategy

NewSendEveryStrategy creates a new TxStrategy that does not drop transactions.

Types

type Broadcaster added in v2.2.0 

type Broadcaster[
	CHAIN_ID txmgrtypes.ID,
	HEAD types.Head[BLOCK_HASH],
	ADDR types.Hashable,
	TX_HASH types.Hashable,
	BLOCK_HASH types.Hashable,
	R txmgrtypes.ChainReceipt[TX_HASH, BLOCK_HASH],
	SEQ txmgrtypes.Sequence,
	FEE txmgrtypes.Fee,
	ADD any,
	FEE_UNIT txmgrtypes.Unit,
] struct {
	txmgrtypes.TxAttemptBuilder[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD]

	utils.StartStopOnce
	// contains filtered or unexported fields
}

Broadcaster monitors eth_txes for transactions that need to be broadcast, assigns nonces and ensures that at least one eth node somewhere has received the transaction successfully.

This does not guarantee delivery! A whole host of other things can subsequently go wrong such as transactions being evicted from the mempool, eth nodes going offline etc. Responsibility for ensuring eventual inclusion into the chain falls on the shoulders of the ethConfirmer.

What Broadcaster does guarantee is: - a monotonic series of increasing nonces for eth_txes that can all eventually be confirmed if you retry enough times - transition of eth_txes out of unstarted into either fatal_error or unconfirmed - existence of a saved eth_tx_attempt

func NewBroadcaster added in v2.2.0 

func NewBroadcaster[
	CHAIN_ID txmgrtypes.ID,
	HEAD types.Head[BLOCK_HASH],
	ADDR types.Hashable,
	TX_HASH types.Hashable,
	BLOCK_HASH types.Hashable,
	R txmgrtypes.ChainReceipt[TX_HASH, BLOCK_HASH],
	SEQ txmgrtypes.Sequence,
	FEE txmgrtypes.Fee,
	ADD any,
	FEE_UNIT txmgrtypes.Unit,
](
	txStore txmgrtypes.TxStore[ADDR, CHAIN_ID, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD],
	client txmgrtypes.TxmClient[CHAIN_ID, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD],
	config txmgrtypes.BroadcasterConfig[FEE_UNIT],
	keystore txmgrtypes.KeyStore[ADDR, CHAIN_ID, SEQ],
	eventBroadcaster pg.EventBroadcaster,
	txAttemptBuilder txmgrtypes.TxAttemptBuilder[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD],
	nonceSyncer NonceSyncer[ADDR, TX_HASH, BLOCK_HASH],
	logger logger.Logger,
	checkerFactory TransmitCheckerFactory[CHAIN_ID, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD],
	autoSyncNonce bool,
	parseAddress func(string) (ADDR, error),
) *Broadcaster[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]

func (*Broadcaster[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) Close added in v2.2.0 

func (eb *Broadcaster[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) Close() error

Close closes the Broadcaster

func (*Broadcaster[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) HealthReport added in v2.2.0 

func (eb *Broadcaster[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) HealthReport() map[string]error

func (*Broadcaster[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) Name added in v2.2.0 

func (eb *Broadcaster[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) Name() string

func (*Broadcaster[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) ProcessUnstartedTxs added in v2.2.0 

func (eb *Broadcaster[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) ProcessUnstartedTxs(ctx context.Context, addr ADDR) (retryable bool, err error)

ProcessUnstartedTxs picks up and handles all eth_txes in the queue revive:disable:error-return

func (*Broadcaster[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) SetResumeCallback added in v2.2.0 

func (eb *Broadcaster[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) SetResumeCallback(callback ResumeCallback)

func (*Broadcaster[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) Start added in v2.2.0 

func (eb *Broadcaster[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) Start(_ context.Context) error

Start starts Broadcaster service. The provided context can be used to terminate Start sequence.

func (*Broadcaster[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) SyncNonce added in v2.2.0 

func (eb *Broadcaster[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) SyncNonce(ctx context.Context, addr ADDR)

syncNonce tries to sync the key nonce, retrying indefinitely until success

func (*Broadcaster[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) Trigger added in v2.2.0 

func (eb *Broadcaster[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) Trigger(addr ADDR)

Trigger forces the monitor for a particular address to recheck for new eth_txes Logs error and does nothing if address was not registered on startup

type CheckerFactory 

type CheckerFactory struct {
	Client evmclient.Client
}

CheckerFactory is a real implementation of TransmitCheckerFactory.

func (*CheckerFactory) BuildChecker 

func (c *CheckerFactory) BuildChecker(spec EvmTransmitCheckerSpec) (EvmTransmitChecker, error)

BuildChecker satisfies the TransmitCheckerFactory interface.

type Config 

type Config interface {
	gas.Config
	pg.QConfig
	EthTxReaperInterval() time.Duration
	EthTxReaperThreshold() time.Duration
	EthTxResendAfterThreshold() time.Duration
	EvmGasBumpThreshold() uint64
	EvmGasBumpTxDepth() uint32
	EvmGasLimitDefault() uint32
	EvmMaxInFlightTransactions() uint32
	EvmMaxQueuedTransactions() uint64
	EvmNonceAutoSync() bool
	EvmUseForwarders() bool
	EvmRPCDefaultBatchSize() uint32
	KeySpecificMaxGasPriceWei(addr common.Address) *assets.Wei
	TriggerFallbackDBPollInterval() time.Duration
}

Config encompasses config used by txmgr package Unless otherwise specified, these should support changing at runtime

type Confirmer added in v2.2.0 

type Confirmer[
	CHAIN_ID txmgrtypes.ID,
	HEAD commontypes.Head[BLOCK_HASH],
	ADDR commontypes.Hashable,
	TX_HASH commontypes.Hashable,
	BLOCK_HASH commontypes.Hashable,
	R txmgrtypes.ChainReceipt[TX_HASH, BLOCK_HASH],
	SEQ txmgrtypes.Sequence,
	FEE txmgrtypes.Fee,
	ADD any,
	FEE_UNIT txmgrtypes.Unit,
] struct {
	utils.StartStopOnce

	txmgrtypes.TxAttemptBuilder[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD]
	// contains filtered or unexported fields
}

Confirmer is a broad service which performs four different tasks in sequence on every new longest chain Step 1: Mark that all currently pending transaction attempts were broadcast before this block Step 2: Check pending transactions for receipts Step 3: See if any transactions have exceeded the gas bumping block threshold and, if so, bump them Step 4: Check confirmed transactions to make sure they are still in the longest chain (reorg protection)

func NewConfirmer added in v2.2.0 

func NewConfirmer[
	CHAIN_ID txmgrtypes.ID,
	HEAD commontypes.Head[BLOCK_HASH],
	ADDR commontypes.Hashable,
	TX_HASH commontypes.Hashable,
	BLOCK_HASH commontypes.Hashable,
	R txmgrtypes.ChainReceipt[TX_HASH, BLOCK_HASH],
	SEQ txmgrtypes.Sequence,
	FEE txmgrtypes.Fee,
	ADD any,
	FEE_UNIT txmgrtypes.Unit,
](
	txStore txmgrtypes.TxStore[ADDR, CHAIN_ID, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD],
	client txmgrtypes.TxmClient[CHAIN_ID, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD],
	config txmgrtypes.ConfirmerConfig[FEE_UNIT],
	keystore txmgrtypes.KeyStore[ADDR, CHAIN_ID, SEQ],
	txAttemptBuilder txmgrtypes.TxAttemptBuilder[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD],
	lggr logger.Logger,
	isReceiptNil func(R) bool,
) *Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]

func (*Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) CheckConfirmedMissingReceipt added in v2.2.0 

func (ec *Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) CheckConfirmedMissingReceipt(ctx context.Context) (err error)

CheckConfirmedMissingReceipt will attempt to re-send any transaction in the state of "confirmed_missing_receipt". If we get back any type of senderror other than "nonce too low" it means that this transaction isn't actually confirmed and needs to be put back into "unconfirmed" state, so that it can enter the gas bumping cycle. This is necessary in rare cases (e.g. Polygon) where network conditions are extremely hostile.

For example, assume the following scenario:

0. We are connected to multiple primary nodes via load balancer 1. We send a transaction, it is confirmed and, we get a receipt 2. A new head comes in from RPC node 1 indicating that this transaction was re-org'd, so we put it back into unconfirmed state 3. We re-send that transaction to a RPC node 2 **which hasn't caught up to this re-org yet** 4. RPC node 2 still has an old view of the chain, so it returns us "nonce too low" indicating "no problem this transaction is already mined" 5. Now the transaction is marked "confirmed_missing_receipt" but the latest chain does not actually include it 6. Now we are reliant on the EthResender to propagate it, and this transaction will not be gas bumped, so in the event of gas spikes it could languish or even be evicted from the mempool and hold up the queue 7. Even if/when RPC node 2 catches up, the transaction is still stuck in state "confirmed_missing_receipt"

This scenario might sound unlikely but has been observed to happen multiple times in the wild on Polygon.

func (*Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) CheckForReceipts added in v2.2.0 

func (ec *Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) CheckForReceipts(ctx context.Context, blockNum int64) error

CheckForReceipts finds attempts that are still pending and checks to see if a receipt is present for the given block number

func (*Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) Close added in v2.2.0 

func (ec *Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) Close() error

Close is a comment to appease the linter

func (*Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) EnsureConfirmedTransactionsInLongestChain added in v2.2.0 

func (ec *Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) EnsureConfirmedTransactionsInLongestChain(ctx context.Context, head commontypes.Head[BLOCK_HASH]) error

EnsureConfirmedTransactionsInLongestChain finds all confirmed eth_txes up to the depth of the given chain and ensures that every one has a receipt with a block hash that is in the given chain.

If any of the confirmed transactions does not have a receipt in the chain, it has been re-org'd out and will be rebroadcast.

func (*Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) FindEthTxsRequiringRebroadcast added in v2.2.0 

func (ec *Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) FindEthTxsRequiringRebroadcast(ctx context.Context, lggr logger.Logger, address ADDR, blockNum, gasBumpThreshold, bumpDepth int64, maxInFlightTransactions uint32, chainID CHAIN_ID) (etxs []*txmgrtypes.Tx[CHAIN_ID, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD], err error)

FindEthTxsRequiringRebroadcast returns attempts that hit insufficient eth, and attempts that need bumping, in nonce ASC order

func (*Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) ForceRebroadcast added in v2.2.0 

func (ec *Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) ForceRebroadcast(seqs []SEQ, fee FEE, address ADDR, overrideGasLimit uint32) error

ForceRebroadcast sends a transaction for every nonce in the given nonce range at the given gas price. If an eth_tx exists for this nonce, we re-send the existing eth_tx with the supplied parameters. If an eth_tx doesn't exist for this nonce, we send a zero transaction. This operates completely orthogonal to the normal Confirmer and can result in untracked attempts! Only for emergency usage. This is in case of some unforeseen scenario where the node is refusing to release the lock. KISS.

func (*Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) HealthReport added in v2.2.0 

func (ec *Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) HealthReport() map[string]error

func (*Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) Name added in v2.2.0 

func (ec *Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) Name() string

func (*Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) ProcessHead added in v2.2.0 

func (ec *Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) ProcessHead(ctx context.Context, head commontypes.Head[BLOCK_HASH]) error

ProcessHead takes all required transactions for the confirmer on a new head

func (*Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) RebroadcastWhereNecessary added in v2.2.0 

func (ec *Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) RebroadcastWhereNecessary(ctx context.Context, blockHeight int64) error

RebroadcastWhereNecessary bumps gas or resends transactions that were previously out-of-eth

func (*Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) ResumePendingTaskRuns added in v2.2.0 

func (ec *Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) ResumePendingTaskRuns(ctx context.Context, head commontypes.Head[BLOCK_HASH]) error

ResumePendingTaskRuns issues callbacks to task runs that are pending waiting for receipts

func (*Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) SetResumeCallback added in v2.2.0 

func (ec *Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) SetResumeCallback(callback ResumeCallback)

func (*Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) Start added in v2.2.0 

func (ec *Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) Start(_ context.Context) error

Start is a comment to appease the linter

type DbEthTx added in v2.1.0 

type DbEthTx struct {
	ID             int64
	Nonce          *int64
	FromAddress    common.Address
	ToAddress      common.Address
	EncodedPayload []byte
	Value          assets.Eth
	// GasLimit on the EthTx is always the conceptual gas limit, which is not
	// necessarily the same as the on-chain encoded value (i.e. Optimism)
	GasLimit uint32
	Error    nullv4.String
	// BroadcastAt is updated every time an attempt for this eth_tx is re-sent
	// In almost all cases it will be within a second or so of the actual send time.
	BroadcastAt *time.Time
	// InitialBroadcastAt is recorded once, the first ever time this eth_tx is sent
	CreatedAt time.Time
	State     txmgrtypes.TxState
	// Marshalled EthTxMeta
	// Used for additional context around transactions which you want to log
	// at send time.
	Meta              *datatypes.JSON
	Subject           uuid.NullUUID
	PipelineTaskRunID uuid.NullUUID
	MinConfirmations  null.Uint32
	EVMChainID        utils.Big
	// AccessList is optional and only has an effect on DynamicFee transactions
	// on chains that support it (e.g. Ethereum Mainnet after London hard fork)
	AccessList EvmAccessList
	// TransmitChecker defines the check that should be performed before a transaction is submitted on
	// chain.
	TransmitChecker    *datatypes.JSON
	InitialBroadcastAt *time.Time
}

Directly maps to columns of database table "eth_txes". This is exported, as tests and other external code still directly reads DB using this schema.

func DbEthTxFromEthTx added in v2.1.0 

func DbEthTxFromEthTx(ethTx *EvmTx) DbEthTx

type DbEthTxAttempt added in v2.1.0 

type DbEthTxAttempt struct {
	ID                      int64
	EthTxID                 int64
	GasPrice                *assets.Wei
	SignedRawTx             []byte
	Hash                    common.Hash
	BroadcastBeforeBlockNum *int64
	State                   txmgrtypes.TxAttemptState
	CreatedAt               time.Time
	ChainSpecificGasLimit   uint32
	TxType                  int
	GasTipCap               *assets.Wei
	GasFeeCap               *assets.Wei
}

Directly maps to columns of database table "eth_tx_attempts". This is exported, as tests and other external code still directly reads DB using this schema.

func DbEthTxAttemptFromEthTxAttempt added in v2.1.0 

func DbEthTxAttemptFromEthTxAttempt(ethTxAttempt *EvmTxAttempt) DbEthTxAttempt

type DropOldestStrategy 

type DropOldestStrategy struct {
	// contains filtered or unexported fields
}

DropOldestStrategy will send the newest N transactions, older ones will be removed from the queue

func NewDropOldestStrategy 

func NewDropOldestStrategy(subject uuid.UUID, queueSize uint32, queryTimeout time.Duration) DropOldestStrategy

NewDropOldestStrategy creates a new TxStrategy that drops the oldest transactions after the queue size is exceeded.

func (DropOldestStrategy) PruneQueue 

func (s DropOldestStrategy) PruneQueue(pruneService txmgrtypes.UnstartedTxQueuePruner, qopt pg.QOpt) (n int64, err error)

func (DropOldestStrategy) Subject 

func (s DropOldestStrategy) Subject() uuid.NullUUID

type EthTxMeta 

type EthTxMeta = txmgrtypes.TxMeta[common.Address, common.Hash] // TODO: change Eth prefix: https://smartcontract-it.atlassian.net/browse/BCI-1198

Type aliases for EVM

type EvmAccessList added in v2.2.0 

type EvmAccessList struct {
	AccessList types.AccessList
	Valid      bool
}

EvmAccessList is a nullable EIP2930 access list Used in the AdditionalParameters field in Tx Is optional and only has an effect on DynamicFee transactions on chains that support it (e.g. Ethereum Mainnet after London hard fork)

func EvmAccessListFrom added in v2.2.0 

func EvmAccessListFrom(al types.AccessList) (n EvmAccessList)

func (EvmAccessList) MarshalJSON added in v2.2.0 

func (e EvmAccessList) MarshalJSON() ([]byte, error)

func (*EvmAccessList) Scan added in v2.2.0 

func (e *EvmAccessList) Scan(value interface{}) error

Scan returns the selector from its serialization in the database

func (*EvmAccessList) UnmarshalJSON added in v2.2.0 

func (e *EvmAccessList) UnmarshalJSON(input []byte) error

func (EvmAccessList) Value added in v2.2.0 

func (e EvmAccessList) Value() (driver.Value, error)

Value returns this instance serialized for database storage

type EvmBroadcaster added in v2.1.0 

type EvmBroadcaster = Broadcaster[*big.Int, *evmtypes.Head, common.Address, common.Hash, common.Hash, *evmtypes.Receipt, evmtypes.Nonce, gas.EvmFee, EvmAccessList, *assets.Wei]

Type aliases for EVM

func NewEvmBroadcaster added in v2.2.0 

func NewEvmBroadcaster(
	txStore EvmTxStore,
	evmClient EvmTxmClient,
	config txmgrtypes.BroadcasterConfig[*assets.Wei],
	keystore EvmKeyStore,
	eventBroadcaster pg.EventBroadcaster,
	txAttemptBuilder EvmTxAttemptBuilder,
	nonceSyncer EvmNonceSyncer,
	logger logger.Logger,
	checkerFactory EvmTransmitCheckerFactory,
	autoSyncNonce bool,
) *EvmBroadcaster

NewEvmBroadcaster returns a new concrete EvmBroadcaster

type EvmBroadcasterConfig added in v2.1.0 

type EvmBroadcasterConfig txmgrtypes.BroadcasterConfig[*assets.Wei]

type EvmConfirmer added in v2.1.0 

type EvmConfirmer = Confirmer[*big.Int, *evmtypes.Head, common.Address, common.Hash, common.Hash, *evmtypes.Receipt, evmtypes.Nonce, gas.EvmFee, EvmAccessList, *assets.Wei]

Type aliases for EVM

func NewEvmConfirmer added in v2.2.0 

func NewEvmConfirmer(
	txStore EvmTxStore,
	evmClient EvmTxmClient,
	config txmgrtypes.ConfirmerConfig[*assets.Wei],
	keystore EvmKeyStore,
	txAttemptBuilder EvmTxAttemptBuilder,
	lggr logger.Logger,
) *EvmConfirmer

NewEvmConfirmer instantiates a new EVM confirmer

type EvmConfirmerConfig added in v2.1.0 

type EvmConfirmerConfig txmgrtypes.ConfirmerConfig[*assets.Wei]

type EvmFwdMgr added in v2.1.0 

type EvmFwdMgr = txmgrtypes.ForwarderManager[common.Address]

Type aliases for EVM

type EvmKeyStore added in v2.1.0 

type EvmKeyStore = txmgrtypes.KeyStore[common.Address, *big.Int, evmtypes.Nonce]

Type aliases for EVM

type EvmNewTx added in v2.1.0 

type EvmNewTx = txmgrtypes.NewTx[common.Address, common.Hash]

Type aliases for EVM

type EvmNonceSyncer added in v2.1.0 

type EvmNonceSyncer = NonceSyncer[common.Address, common.Hash, common.Hash]

Type aliases for EVM

func NewNonceSyncer 

func NewNonceSyncer(
	txStore EvmTxStore,
	lggr logger.Logger,
	ethClient evmclient.Client,
	kst EvmKeyStore,
) EvmNonceSyncer

NewNonceSyncer returns a new syncer

type EvmPriorAttempt added in v2.1.0 

type EvmPriorAttempt = txmgrtypes.PriorAttempt[gas.EvmFee, common.Hash]

Type aliases for EVM

type EvmReaper added in v2.2.0 

type EvmReaper = Reaper[*big.Int]

Type aliases for EVM

func NewEvmReaper added in v2.2.0 

func NewEvmReaper(lggr logger.Logger, store txmgrtypes.TxHistoryReaper[*big.Int], config EvmReaperConfig, chainID *big.Int) *EvmReaper

NewEvmReaper instantiates a new EVM-specific reaper object

type EvmReaperConfig added in v2.1.0 

type EvmReaperConfig txmgrtypes.ReaperConfig

type EvmReceipt 

type EvmReceipt = txmgrtypes.Receipt[*evmtypes.Receipt, common.Hash, common.Hash]

Type aliases for EVM

func DbReceiptToEvmReceipt added in v2.1.0 

func DbReceiptToEvmReceipt(receipt *dbReceipt) EvmReceipt

type EvmReceiptPlus 

type EvmReceiptPlus = txmgrtypes.ReceiptPlus[*evmtypes.Receipt]

Type aliases for EVM

type EvmResender added in v2.1.0 

type EvmResender = Resender[*big.Int, common.Address, common.Hash, common.Hash, evmtypes.Nonce, gas.EvmFee, *evmtypes.Receipt, EvmAccessList]

Type aliases for EVM

func NewEvmResender added in v2.2.0 

func NewEvmResender(
	lggr logger.Logger,
	txStore EvmTxStore,
	evmClient EvmTxmClient,
	ks EvmKeyStore,
	pollInterval time.Duration,
	config EvmResenderConfig,
) *EvmResender

NewEvnResender creates a new concrete EvmResender

type EvmResenderConfig added in v2.1.0 

type EvmResenderConfig txmgrtypes.ResenderConfig

type EvmTransmitChecker added in v2.1.0 

type EvmTransmitChecker = TransmitChecker[*big.Int, common.Address, common.Hash, common.Hash, *evmtypes.Receipt, evmtypes.Nonce, gas.EvmFee, EvmAccessList]
var (
	// NoChecker is a TransmitChecker that always determines a transaction should be submitted.
	NoChecker EvmTransmitChecker = noChecker{}
)

type EvmTransmitCheckerFactory added in v2.1.0 

type EvmTransmitCheckerFactory = TransmitCheckerFactory[*big.Int, common.Address, common.Hash, common.Hash, *evmtypes.Receipt, evmtypes.Nonce, gas.EvmFee, EvmAccessList]

Type aliases for EVM

type EvmTransmitCheckerSpec added in v2.1.0 

type EvmTransmitCheckerSpec = txmgrtypes.TransmitCheckerSpec[common.Address]

type EvmTx added in v2.1.0 

type EvmTx = txmgrtypes.Tx[*big.Int, common.Address, common.Hash, common.Hash, *evmtypes.Receipt, evmtypes.Nonce, gas.EvmFee, EvmAccessList]

Type aliases for EVM

type EvmTxAttempt added in v2.1.0 

type EvmTxAttempt = txmgrtypes.TxAttempt[*big.Int, common.Address, common.Hash, common.Hash, *evmtypes.Receipt, evmtypes.Nonce, gas.EvmFee, EvmAccessList]

Type aliases for EVM

type EvmTxAttemptBuilder added in v2.1.0 

type EvmTxAttemptBuilder = txmgrtypes.TxAttemptBuilder[*big.Int, *evmtypes.Head, common.Address, common.Hash, common.Hash, *evmtypes.Receipt, evmtypes.Nonce, gas.EvmFee, EvmAccessList]

Type aliases for EVM

type EvmTxManager added in v2.1.0 

type EvmTxManager = TxManager[*big.Int, *evmtypes.Head, common.Address, common.Hash, common.Hash, *evmtypes.Receipt, evmtypes.Nonce, gas.EvmFee, EvmAccessList]

Type aliases for EVM

type EvmTxStore added in v2.1.0 

type EvmTxStore = txmgrtypes.TxStore[common.Address, *big.Int, common.Hash, common.Hash, *evmtypes.Receipt, evmtypes.Nonce, gas.EvmFee, EvmAccessList]

Type aliases for EVM

func NewTxStore added in v2.1.0 

func NewTxStore(
	db *sqlx.DB,
	lggr logger.Logger,
	cfg pg.QConfig,
) EvmTxStore

type EvmTxm added in v2.1.0 

type EvmTxm = Txm[*big.Int, *evmtypes.Head, common.Address, common.Hash, common.Hash, *evmtypes.Receipt, evmtypes.Nonce, gas.EvmFee, EvmAccessList, *assets.Wei]

Type aliases for EVM

func NewTxm 

func NewTxm(
	db *sqlx.DB,
	ethClient evmclient.Client,
	cfg EvmTxmConfig,
	keyStore EvmKeyStore,
	eventBroadcaster pg.EventBroadcaster,
	lggr logger.Logger,
	checkerFactory EvmTransmitCheckerFactory,
	fwdMgr EvmFwdMgr,
	txAttemptBuilder EvmTxAttemptBuilder,
	txStore EvmTxStore,
	nonceSyncer EvmNonceSyncer,
	ethBroadcaster *EvmBroadcaster,
	ethConfirmer *EvmConfirmer,
	ethResender *EvmResender,
	q pg.Q,
) *EvmTxm

NewTxm creates a new Txm with the given configuration.

type EvmTxmClient added in v2.2.0 

type EvmTxmClient = txmgrtypes.TxmClient[*big.Int, common.Address, common.Hash, common.Hash, *evmtypes.Receipt, evmtypes.Nonce, gas.EvmFee, EvmAccessList]

Type aliases for EVM

type EvmTxmConfig added in v2.1.0 

type EvmTxmConfig txmgrtypes.TxmConfig[*assets.Wei]

type NonceSyncer 

type NonceSyncer[ADDR types.Hashable, TX_HASH types.Hashable, BLOCK_HASH types.Hashable] interface {
	Sync(ctx context.Context, addr ADDR) (err error)
}

NonceSyncer manages the delicate task of syncing the local nonce with the chain nonce in case of divergence.

On startup, we check each key for the nonce value on chain and compare it to our local value.

Usually the on-chain nonce will be the same as (or lower than) the next_nonce in the DB, in which case we do nothing.

If we are restoring from a backup however, or another wallet has used the account, the chain nonce might be higher than our local one. In this scenario, we must fastforward the local nonce to match the chain nonce.

The problem with doing this is that now Chainlink does not have any ownership or control over potentially pending transactions with nonces between our local highest nonce and the chain nonce. If one of those transactions is pushed out of the mempool or re-org'd out of the chain, we run the risk of being stuck with a gap in the nonce sequence that will never be filled.

The solution is to query the chain for our own transactions and take ownership of them by writing them to the database and letting the EthConfirmer handle them as it would any other transaction.

This is not quite as straightforward as one might expect. We cannot query transactions from our account to infinite depth (geth does not support this). The best we can do is to query for all transactions sent within the past EVM.FinalityDepth blocks and find the ones sent by our address(es).

This gives us re-org protection up to EVM.FinalityDepth deep in the worst case, which is in line with our other guarantees.

type NullEvmTxManager added in v2.1.0 

type NullEvmTxManager = NullTxManager[*big.Int, *evmtypes.Head, common.Address, common.Hash, common.Hash, *evmtypes.Receipt, evmtypes.Nonce, gas.EvmFee, EvmAccessList]

Type aliases for EVM

type NullTxManager 

type NullTxManager[
	CHAIN_ID txmgrtypes.ID,
	HEAD commontypes.Head[BLOCK_HASH],
	ADDR commontypes.Hashable,
	TX_HASH, BLOCK_HASH commontypes.Hashable,
	R txmgrtypes.ChainReceipt[TX_HASH, BLOCK_HASH],
	SEQ txmgrtypes.Sequence,
	FEE txmgrtypes.Fee,
	ADD any,
] struct {
	ErrMsg string
}

func (*NullTxManager[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD]) Close 

func (n *NullTxManager[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD]) Close() error

Close does noop for NullTxManager.

func (*NullTxManager[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD]) CreateEthTransaction 

func (n *NullTxManager[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD]) CreateEthTransaction(txmgrtypes.NewTx[ADDR, TX_HASH], ...pg.QOpt) (etx txmgrtypes.Tx[CHAIN_ID, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD], err error)

func (*NullTxManager[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD]) GetForwarderForEOA 

func (n *NullTxManager[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD]) GetForwarderForEOA(addr ADDR) (fwdr ADDR, err error)

func (*NullTxManager[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD]) HealthReport 

func (n *NullTxManager[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD]) HealthReport() map[string]error

func (*NullTxManager[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD]) Name 

func (n *NullTxManager[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD]) Name() string

func (*NullTxManager[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD]) OnNewLongestChain 

func (n *NullTxManager[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD]) OnNewLongestChain(context.Context, *evmtypes.Head)

func (*NullTxManager[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD]) Ready 

func (n *NullTxManager[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD]) Ready() error

func (*NullTxManager[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD]) RegisterResumeCallback 

func (n *NullTxManager[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD]) RegisterResumeCallback(fn ResumeCallback)

func (*NullTxManager[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD]) Reset 

func (n *NullTxManager[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD]) Reset(f func(), addr ADDR, abandon bool) error

func (*NullTxManager[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD]) SendEther 

func (n *NullTxManager[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD]) SendEther(chainID *big.Int, from, to ADDR, value assets.Eth, gasLimit uint32) (etx txmgrtypes.Tx[CHAIN_ID, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD], err error)

SendEther does nothing, null functionality

func (*NullTxManager[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD]) Start 

func (n *NullTxManager[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD]) Start(context.Context) error

Start does noop for NullTxManager.

func (*NullTxManager[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD]) Trigger 

func (n *NullTxManager[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD]) Trigger(ADDR)

Trigger does noop for NullTxManager.

type ProcessUnstartedTxs added in v2.2.0 

type ProcessUnstartedTxs[ADDR types.Hashable] func(ctx context.Context, fromAddress ADDR) (retryable bool, err error)

type Reaper 

type Reaper[CHAIN_ID txmgrtypes.ID] struct {
	// contains filtered or unexported fields
}

Reaper handles periodic database cleanup for Txm

func NewReaper 

func NewReaper[CHAIN_ID txmgrtypes.ID](lggr logger.Logger, store txmgrtypes.TxHistoryReaper[CHAIN_ID], config txmgrtypes.ReaperConfig, chainID CHAIN_ID) *Reaper[CHAIN_ID]

NewReaper instantiates a new reaper object

func (*Reaper[CHAIN_ID]) ReapTxes added in v2.2.0 

func (r *Reaper[CHAIN_ID]) ReapTxes(headNum int64) error

ReapTxes deletes old txes

func (*Reaper[CHAIN_ID]) SetLatestBlockNum 

func (r *Reaper[CHAIN_ID]) SetLatestBlockNum(latestBlockNum int64)

SetLatestBlockNum should be called on every new highest block number

func (*Reaper[CHAIN_ID]) Start 

func (r *Reaper[CHAIN_ID]) Start()

Start the reaper. Should only be called once.

func (*Reaper[CHAIN_ID]) Stop 

func (r *Reaper[CHAIN_ID]) Stop()

Stop the reaper. Should only be called once.

type Resender added in v2.2.0 

type Resender[
	CHAIN_ID txmgrtypes.ID,
	ADDR types.Hashable,
	TX_HASH types.Hashable,
	BLOCK_HASH types.Hashable,
	SEQ txmgrtypes.Sequence,
	FEE txmgrtypes.Fee,
	R txmgrtypes.ChainReceipt[TX_HASH, BLOCK_HASH],
	ADD any,
] struct {
	// contains filtered or unexported fields
}

EthResender periodically picks up transactions that have been languishing unconfirmed for a configured amount of time without being sent, and sends their highest priced attempt again. This helps to defend against geth/parity silently dropping txes, or txes being ejected from the mempool.

Previously we relied on the bumper to do this for us implicitly but there can occasionally be problems with this (e.g. abnormally long block times, or if gas bumping is disabled)

func NewResender added in v2.2.0 

func NewResender[
	CHAIN_ID txmgrtypes.ID,
	ADDR types.Hashable,
	TX_HASH types.Hashable,
	BLOCK_HASH types.Hashable,
	SEQ txmgrtypes.Sequence,
	FEE txmgrtypes.Fee,
	R txmgrtypes.ChainReceipt[TX_HASH, BLOCK_HASH],
	ADD any,
](
	lggr logger.Logger,
	txStore txmgrtypes.TxStore[ADDR, CHAIN_ID, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD],
	client txmgrtypes.TxmClient[CHAIN_ID, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD],
	ks txmgrtypes.KeyStore[ADDR, CHAIN_ID, SEQ],
	pollInterval time.Duration,
	config txmgrtypes.ResenderConfig,
) *Resender[CHAIN_ID, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE, R, ADD]

func (*Resender[CHAIN_ID, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE, R, ADD]) Start added in v2.2.0 

func (er *Resender[CHAIN_ID, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE, R, ADD]) Start()

Start is a comment which satisfies the linter

func (*Resender[CHAIN_ID, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE, R, ADD]) Stop added in v2.2.0 

func (er *Resender[CHAIN_ID, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE, R, ADD]) Stop()

Stop is a comment which satisfies the linter

type ResumeCallback 

type ResumeCallback func(id uuid.UUID, result interface{}, err error) error

ResumeCallback is assumed to be idempotent

type SendEveryStrategy 

type SendEveryStrategy struct{}

SendEveryStrategy will always send the tx

func (SendEveryStrategy) PruneQueue 

func (SendEveryStrategy) PruneQueue(pruneService txmgrtypes.UnstartedTxQueuePruner, qopt pg.QOpt) (int64, error)

func (SendEveryStrategy) Subject 

func (SendEveryStrategy) Subject() uuid.NullUUID

type SimulateChecker 

type SimulateChecker struct {
	Client evmclient.Client
}

SimulateChecker simulates transactions, producing an error if they revert on chain.

func (*SimulateChecker) Check 

func (s *SimulateChecker) Check(
	ctx context.Context,
	l logger.Logger,
	tx EvmTx,
	a EvmTxAttempt,
) error

Check satisfies the TransmitChecker interface.

type TransmitChecker 

type TransmitChecker[
	CHAIN_ID txmgrtypes.ID,
	ADDR types.Hashable,
	TX_HASH, BLOCK_HASH types.Hashable,
	R txmgrtypes.ChainReceipt[TX_HASH, BLOCK_HASH],
	SEQ txmgrtypes.Sequence,
	FEE txmgrtypes.Fee,
	ADD any,
] interface {

	// Check the given transaction. If the transaction should not be sent, an error indicating why
	// is returned. Errors should only be returned if the checker can confirm that a transaction
	// should not be sent, other errors (for example connection or other unexpected errors) should
	// be logged and swallowed.
	Check(ctx context.Context, l logger.Logger, tx txmgrtypes.Tx[CHAIN_ID, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD], a txmgrtypes.TxAttempt[CHAIN_ID, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD]) error
}

TransmitChecker determines whether a transaction should be submitted on-chain.

type TransmitCheckerFactory 

type TransmitCheckerFactory[
	CHAIN_ID txmgrtypes.ID,
	ADDR types.Hashable,
	TX_HASH, BLOCK_HASH types.Hashable,
	R txmgrtypes.ChainReceipt[TX_HASH, BLOCK_HASH],
	SEQ txmgrtypes.Sequence,
	FEE txmgrtypes.Fee,
	ADD any,
] interface {
	// BuildChecker builds a new TransmitChecker based on the given spec.
	BuildChecker(spec txmgrtypes.TransmitCheckerSpec[ADDR]) (TransmitChecker[CHAIN_ID, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD], error)
}

TransmitCheckerFactory creates a transmit checker based on a spec.

type TxAttemptSigner 

type TxAttemptSigner[ADDR commontypes.Hashable] interface {
	SignTx(fromAddress ADDR, tx *types.Transaction, chainID *big.Int) (*types.Transaction, error)
}

type TxManager 

type TxManager[
	CHAIN_ID txmgrtypes.ID,
	HEAD commontypes.Head[BLOCK_HASH],
	ADDR commontypes.Hashable,
	TX_HASH commontypes.Hashable,
	BLOCK_HASH commontypes.Hashable,
	R txmgrtypes.ChainReceipt[TX_HASH, BLOCK_HASH],
	SEQ txmgrtypes.Sequence,
	FEE txmgrtypes.Fee,
	ADD any,
] interface {
	txmgrtypes.HeadTrackable[HEAD, BLOCK_HASH]
	services.ServiceCtx
	Trigger(addr ADDR)
	CreateEthTransaction(newTx txmgrtypes.NewTx[ADDR, TX_HASH], qopts ...pg.QOpt) (etx txmgrtypes.Tx[CHAIN_ID, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD], err error)
	GetForwarderForEOA(eoa ADDR) (forwarder ADDR, err error)
	RegisterResumeCallback(fn ResumeCallback)
	SendEther(chainID *big.Int, from, to ADDR, value assets.Eth, gasLimit uint32) (etx txmgrtypes.Tx[CHAIN_ID, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD], err error)
	Reset(f func(), addr ADDR, abandon bool) error
}

TxManager is the main component of the transaction manager. It is also the interface to external callers.

type Txm 

type Txm[
	CHAIN_ID txmgrtypes.ID,
	HEAD commontypes.Head[BLOCK_HASH],
	ADDR commontypes.Hashable,
	TX_HASH commontypes.Hashable,
	BLOCK_HASH commontypes.Hashable,
	R txmgrtypes.ChainReceipt[TX_HASH, BLOCK_HASH],
	SEQ txmgrtypes.Sequence,
	FEE txmgrtypes.Fee,
	ADD any,
	FEE_UNIT txmgrtypes.Unit,
] struct {
	utils.StartStopOnce
	// contains filtered or unexported fields
}

func (*Txm[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) Close 

func (b *Txm[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) Close() (merr error)

func (*Txm[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) CreateEthTransaction 

func (b *Txm[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) CreateEthTransaction(newTx txmgrtypes.NewTx[ADDR, TX_HASH], qs ...pg.QOpt) (tx txmgrtypes.Tx[CHAIN_ID, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD], err error)

CreateEthTransaction inserts a new transaction

func (*Txm[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) GetForwarderForEOA 

func (b *Txm[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) GetForwarderForEOA(eoa ADDR) (forwarder ADDR, err error)

Calls forwarderMgr to get a proper forwarder for a given EOA.

func (*Txm[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) HealthReport 

func (b *Txm[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) HealthReport() map[string]error

func (*Txm[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) Name 

func (b *Txm[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) Name() string

func (*Txm[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) OnNewLongestChain 

func (b *Txm[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) OnNewLongestChain(ctx context.Context, head HEAD)

OnNewLongestChain conforms to HeadTrackable

func (*Txm[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) RegisterResumeCallback 

func (b *Txm[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) RegisterResumeCallback(fn ResumeCallback)

func (*Txm[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) Reset 

func (b *Txm[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) Reset(callback func(), addr ADDR, abandon bool) (err error)

Reset stops EthBroadcaster/EthConfirmer, executes callback, then starts them again

func (*Txm[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) SendEther 

func (b *Txm[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) SendEther(chainID CHAIN_ID, from, to ADDR, value assets.Eth, gasLimit uint32) (etx txmgrtypes.Tx[CHAIN_ID, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD], err error)

SendEther creates a transaction that transfers the given value of ether

func (*Txm[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) Start 

func (b *Txm[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) Start(ctx context.Context) (merr error)

Start starts Txm service. The provided context can be used to terminate Start sequence.

func (*Txm[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) Trigger 

func (b *Txm[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE, ADD, FEE_UNIT]) Trigger(addr ADDR)

Trigger forces the EthBroadcaster to check early for the given address

type VRFV1Checker 

type VRFV1Checker struct {

	// Callbacks checks whether a VRF V1 request has already been fulfilled on the VRFCoordinator
	// Solidity contract
	Callbacks func(opts *bind.CallOpts, reqID [32]byte) (v1.Callbacks, error)

	Client evmclient.Client
}

VRFV1Checker is an implementation of TransmitChecker that checks whether a VRF V1 fulfillment has already been fulfilled.

func (*VRFV1Checker) Check 

func (v *VRFV1Checker) Check(
	ctx context.Context,
	l logger.Logger,
	tx EvmTx,
	_ EvmTxAttempt,
) error

Check satisfies the TransmitChecker interface.

type VRFV2Checker 

type VRFV2Checker struct {

	// GetCommitment checks whether a VRF V2 request has been fulfilled on the VRFCoordinatorV2
	// Solidity contract.
	GetCommitment func(opts *bind.CallOpts, requestID *big.Int) ([32]byte, error)

	// HeadByNumber fetches the head given the number. If nil is provided,
	// the latest header is fetched.
	HeadByNumber func(ctx context.Context, n *big.Int) (*types.Head, error)

	// RequestBlockNumber is the block number of the VRFV2 request.
	RequestBlockNumber *big.Int
}

VRFV2Checker is an implementation of TransmitChecker that checks whether a VRF V2 fulfillment has already been fulfilled.

func (*VRFV2Checker) Check 

func (v *VRFV2Checker) Check(
	ctx context.Context,
	l logger.Logger,
	tx EvmTx,
	_ EvmTxAttempt,
) error

Check satisfies the TransmitChecker interface.

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