client

package
v2.12.0-xlayer-05012024 Latest Latest
Warning

This package is not in the latest version of its module.

 Go to latest Published: May 1, 2024 License: MIT Imports: 23 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	Primary = NodeTier(iota)
	Secondary
)
View Source 
const (
	NodeSelectionModeHighestHead     = "HighestHead"
	NodeSelectionModeRoundRobin      = "RoundRobin"
	NodeSelectionModeTotalDifficulty = "TotalDifficulty"
	NodeSelectionModePriorityLevel   = "PriorityLevel"
)
View Source 
const QueryTimeout = 10 * time.Second

Variables

View Source 
var (
	// PromMultiNodeRPCNodeStates reports current RPC node state
	PromMultiNodeRPCNodeStates = promauto.NewGaugeVec(prometheus.GaugeOpts{
		Name: "multi_node_states",
		Help: "The number of RPC nodes currently in the given state for the given chain",
	}, []string{"network", "chainId", "state"})
	// PromMultiNodeInvariantViolations reports violation of our assumptions
	PromMultiNodeInvariantViolations = promauto.NewCounterVec(prometheus.CounterOpts{
		Name: "multi_node_invariant_violations",
		Help: "The number of invariant violations",
	}, []string{"network", "chainId", "invariant"})
	ErroringNodeError = fmt.Errorf("no live nodes available")
)

Functions

This section is empty.

Types

type ChainConfig added in v2.11.0 

type ChainConfig interface {
	NodeNoNewHeadsThreshold() time.Duration
	FinalityDepth() uint32
	FinalityTagEnabled() bool
	ChainType() commonconfig.ChainType
}
type Head interface {
	BlockNumber() int64
	BlockDifficulty() *big.Int
	IsValid() bool
}

Head is the interface required by the NodeClient

type MultiNode 

type MultiNode[
	CHAIN_ID types.ID,
	SEQ types.Sequence,
	ADDR types.Hashable,
	BLOCK_HASH types.Hashable,
	TX any,
	TX_HASH types.Hashable,
	EVENT any,
	EVENT_OPS any,
	TX_RECEIPT types.Receipt[TX_HASH, BLOCK_HASH],
	FEE feetypes.Fee,
	HEAD types.Head[BLOCK_HASH],
	RPC_CLIENT RPC[CHAIN_ID, SEQ, ADDR, BLOCK_HASH, TX, TX_HASH, EVENT, EVENT_OPS, TX_RECEIPT, FEE, HEAD, BATCH_ELEM],
	BATCH_ELEM any,
] interface {
	Close() error
	NodeStates() map[string]string
	SelectNodeRPC() (RPC_CLIENT, error)

	BatchCallContextAll(ctx context.Context, b []BATCH_ELEM) error
	ConfiguredChainID() CHAIN_ID
	IsL2() bool
	// contains filtered or unexported methods
}

MultiNode is a generalized multi node client interface that includes methods to interact with different chains. It also handles multiple node RPC connections simultaneously.

func NewMultiNode 

func NewMultiNode[
	CHAIN_ID types.ID,
	SEQ types.Sequence,
	ADDR types.Hashable,
	BLOCK_HASH types.Hashable,
	TX any,
	TX_HASH types.Hashable,
	EVENT any,
	EVENT_OPS any,
	TX_RECEIPT types.Receipt[TX_HASH, BLOCK_HASH],
	FEE feetypes.Fee,
	HEAD types.Head[BLOCK_HASH],
	RPC_CLIENT RPC[CHAIN_ID, SEQ, ADDR, BLOCK_HASH, TX, TX_HASH, EVENT, EVENT_OPS, TX_RECEIPT, FEE, HEAD, BATCH_ELEM],
	BATCH_ELEM any,
](
	lggr logger.Logger,
	selectionMode string,
	leaseDuration time.Duration,
	noNewHeadsThreshold time.Duration,
	nodes []Node[CHAIN_ID, HEAD, RPC_CLIENT],
	sendonlys []SendOnlyNode[CHAIN_ID, RPC_CLIENT],
	chainID CHAIN_ID,
	chainType config.ChainType,
	chainFamily string,
	classifySendTxError func(tx TX, err error) SendTxReturnCode,
	sendTxSoftTimeout time.Duration,
) MultiNode[CHAIN_ID, SEQ, ADDR, BLOCK_HASH, TX, TX_HASH, EVENT, EVENT_OPS, TX_RECEIPT, FEE, HEAD, RPC_CLIENT, BATCH_ELEM]

type Node 

type Node[
	CHAIN_ID types.ID,
	HEAD Head,
	RPC NodeClient[CHAIN_ID, HEAD],
] interface {
	// State returns nodeState
	State() nodeState
	// StateAndLatest returns nodeState with the latest received block number & total difficulty.
	StateAndLatest() (nodeState, int64, *big.Int)
	// Name is a unique identifier for this node.
	Name() string
	String() string
	RPC() RPC
	SubscribersCount() int32
	UnsubscribeAllExceptAliveLoop()
	ConfiguredChainID() CHAIN_ID
	Order() int32
	Start(context.Context) error
	Close() error
}

func NewNode 

func NewNode[
	CHAIN_ID types.ID,
	HEAD Head,
	RPC NodeClient[CHAIN_ID, HEAD],
](
	nodeCfg NodeConfig,
	chainCfg ChainConfig,
	lggr logger.Logger,
	wsuri url.URL,
	httpuri *url.URL,
	name string,
	id int32,
	chainID CHAIN_ID,
	nodeOrder int32,
	rpc RPC,
	chainFamily string,
) Node[CHAIN_ID, HEAD, RPC]

type NodeClient 

type NodeClient[
	CHAIN_ID types.ID,
	HEAD Head,
] interface {
	DialHTTP() error
	DisconnectAll()
	Close()
	ClientVersion(context.Context) (string, error)
	SubscribersCount() int32
	SetAliveLoopSub(types.Subscription)
	UnsubscribeAllExceptAliveLoop()
	IsSyncing(ctx context.Context) (bool, error)
	LatestFinalizedBlock(ctx context.Context) (HEAD, error)
	// contains filtered or unexported methods
}

NodeClient includes all the necessary RPC methods required by a node.

type NodeConfig 

type NodeConfig interface {
	PollFailureThreshold() uint32
	PollInterval() time.Duration
	SelectionMode() string
	SyncThreshold() uint32
	NodeIsSyncingEnabled() bool
	FinalizedBlockPollInterval() time.Duration
	Errors() config.ClientErrors
}

type NodeSelector 

type NodeSelector[
	CHAIN_ID types.ID,
	HEAD Head,
	RPC NodeClient[CHAIN_ID, HEAD],
] interface {
	// Select returns a Node, or nil if none can be selected.
	// Implementation must be thread-safe.
	Select() Node[CHAIN_ID, HEAD, RPC]
	// Name returns the strategy name, e.g. "HighestHead" or "RoundRobin"
	Name() string
}

func NewHighestHeadNodeSelector 

func NewHighestHeadNodeSelector[
	CHAIN_ID types.ID,
	HEAD Head,
	RPC NodeClient[CHAIN_ID, HEAD],
](nodes []Node[CHAIN_ID, HEAD, RPC]) NodeSelector[CHAIN_ID, HEAD, RPC]

func NewPriorityLevelNodeSelector 

func NewPriorityLevelNodeSelector[
	CHAIN_ID types.ID,
	HEAD Head,
	RPC NodeClient[CHAIN_ID, HEAD],
](nodes []Node[CHAIN_ID, HEAD, RPC]) NodeSelector[CHAIN_ID, HEAD, RPC]

func NewRoundRobinSelector 

func NewRoundRobinSelector[
	CHAIN_ID types.ID,
	HEAD Head,
	RPC NodeClient[CHAIN_ID, HEAD],
](nodes []Node[CHAIN_ID, HEAD, RPC]) NodeSelector[CHAIN_ID, HEAD, RPC]

func NewTotalDifficultyNodeSelector 

func NewTotalDifficultyNodeSelector[
	CHAIN_ID types.ID,
	HEAD Head,
	RPC NodeClient[CHAIN_ID, HEAD],
](nodes []Node[CHAIN_ID, HEAD, RPC]) NodeSelector[CHAIN_ID, HEAD, RPC]

type NodeTier 

type NodeTier int

func (NodeTier) String 

func (n NodeTier) String() string

type Poller added in v2.12.0 

type Poller[T any] struct {
	services.StateMachine
	// contains filtered or unexported fields
}

Poller is a component that polls a function at a given interval and delivers the result to a channel. It is used by multinode to poll for new heads and implements the Subscription interface.

func NewPoller added in v2.12.0 

func NewPoller[
	T any,
](pollingInterval time.Duration, pollingFunc func(ctx context.Context) (T, error), pollingTimeout time.Duration, channel chan<- T, logger logger.Logger) Poller[T]

NewPoller creates a new Poller instance

func (*Poller[T]) Err added in v2.12.0 

func (p *Poller[T]) Err() <-chan error

func (*Poller[T]) Start added in v2.12.0 

func (p *Poller[T]) Start() error

func (*Poller[T]) Unsubscribe added in v2.12.0 

func (p *Poller[T]) Unsubscribe()

Unsubscribe cancels the sending of events to the data channel

type RPC 

type RPC[
	CHAIN_ID types.ID,
	SEQ types.Sequence,
	ADDR types.Hashable,
	BLOCK_HASH types.Hashable,
	TX any,
	TX_HASH types.Hashable,
	EVENT any,
	EVENT_OPS any,
	TX_RECEIPT types.Receipt[TX_HASH, BLOCK_HASH],
	FEE feetypes.Fee,
	HEAD types.Head[BLOCK_HASH],
	BATCH_ELEM any,
] interface {
	NodeClient[
		CHAIN_ID,
		HEAD,
	]
	// contains filtered or unexported methods
}

RPC includes all the necessary methods for a multi-node client to interact directly with any RPC endpoint.

type SendOnlyNode 

type SendOnlyNode[
	CHAIN_ID types.ID,
	RPC sendOnlyClient[CHAIN_ID],
] interface {
	// Start may attempt to connect to the node, but should only return error for misconfiguration - never for temporary errors.
	Start(context.Context) error
	Close() error

	ConfiguredChainID() CHAIN_ID
	RPC() RPC

	String() string
	// State returns nodeState
	State() nodeState
	// Name is a unique identifier for this node.
	Name() string
}

SendOnlyNode represents one node used as a sendonly

func NewSendOnlyNode 

func NewSendOnlyNode[
	CHAIN_ID types.ID,
	RPC sendOnlyClient[CHAIN_ID],
](
	lggr logger.Logger,
	httpuri url.URL,
	name string,
	chainID CHAIN_ID,
	rpc RPC,
) SendOnlyNode[CHAIN_ID, RPC]

NewSendOnlyNode returns a new sendonly node

type SendTxReturnCode 

type SendTxReturnCode int
const (
	Successful              SendTxReturnCode = iota + 1
	Fatal                                    // Unrecoverable error. Most likely the attempt should be thrown away.
	Retryable                                // The error returned by the RPC indicates that if we retry with the same attempt, the tx will eventually go through.
	Underpriced                              // Attempt was underpriced. New estimation is needed with bumped gas price.
	Unknown                                  // Tx failed with an error response that is not recognized by the client.
	Unsupported                              // Attempt failed with an error response that is not supported by the client for the given chain.
	TransactionAlreadyKnown                  // The transaction that was sent has already been received by the RPC.
	InsufficientFunds                        // Tx was rejected due to insufficient funds.
	ExceedsMaxFee                            // Attempt's fee was higher than the node's limit and got rejected.
	FeeOutOfValidRange                       // This error is returned when we use a fee price suggested from an RPC, but the network rejects the attempt due to an invalid range(mostly used by L2 chains). Retry by requesting a new suggested fee price.
	OutOfCounters                            // The error returned when a transaction is too complex to be proven by zk circuits. This error is mainly returned by zk chains.

)

SendTxReturnCode is a generalized client error that dictates what should be the next action, depending on the RPC error response.

func (SendTxReturnCode) String added in v2.12.0 

func (c SendTxReturnCode) String() string

Source Files

View all Source files

Directories

Path Synopsis

Jump to

Keyboard shortcuts

? : This menu
/ : Search site
f or F : Jump to
y or Y : Canonical URL
go.dev uses cookies from Google to deliver and enhance the quality of its services and to analyze traffic. Learn more.