transfer

package
v0.92.4 Latest Latest
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 Go to latest Published: Dec 10, 2021 License: MPL-2.0 Imports: 27 Imported by: 0

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Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func IsTokenTransfer 

func IsTokenTransfer(logs []*types.Log) bool

Types

type BalanceCache 

type BalanceCache interface {
	BalanceAt(ctx context.Context, client BalanceReader, account common.Address, blockNumber *big.Int) (*big.Int, error)
	NonceAt(ctx context.Context, client BalanceReader, account common.Address, blockNumber *big.Int) (*int64, error)
}

type BalanceReader 

type BalanceReader interface {
	BalanceAt(ctx context.Context, account common.Address, blockNumber *big.Int) (*big.Int, error)
	NonceAt(ctx context.Context, account common.Address, blockNumber *big.Int) (uint64, error)
	HeaderByNumber(ctx context.Context, number *big.Int) (*types.Header, error)
}

BalanceReader interface for reading balance at a specifeid address.

type BatchDownloader 

type BatchDownloader interface {
	GetHeadersInRange(ctx context.Context, from, to *big.Int) ([]*DBHeader, error)
}

BatchDownloader interface for loading transfers in batches in speificed range of blocks.

type Block 

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

func (*Block) GetBlocks 

func (b *Block) GetBlocks(chainID uint64) (rst []*DBHeader, err error)

func (*Block) GetBlocksByAddress 

func (b *Block) GetBlocksByAddress(chainID uint64, address common.Address, limit int) (rst []*big.Int, err error)

GetBlocksByAddress loads blocks for a given address.

func (*Block) GetFirstKnownBlock 

func (b *Block) GetFirstKnownBlock(chainID uint64, address common.Address) (rst *big.Int, err error)

func (*Block) GetLastBlockByAddress 

func (b *Block) GetLastBlockByAddress(chainID uint64, address common.Address, limit int) (rst *big.Int, err error)

func (*Block) GetLastKnownBlockByAddress 

func (b *Block) GetLastKnownBlockByAddress(chainID uint64, address common.Address) (block *LastKnownBlock, err error)

func (*Block) GetLastKnownBlockByAddresses 

func (b *Block) GetLastKnownBlockByAddresses(chainID uint64, addresses []common.Address) (map[common.Address]*LastKnownBlock, []common.Address, error)

func (*Block) GetLastSavedBlock 

func (b *Block) GetLastSavedBlock(chainID uint64) (rst *DBHeader, err error)

func (*Block) GetLastSavedBlockBefore 

func (b *Block) GetLastSavedBlockBefore(chainID uint64, block *big.Int) (rst *DBHeader, err error)

func (*Block) RemoveBlockWithTransfer 

func (b *Block) RemoveBlockWithTransfer(chainID uint64, address common.Address, block *big.Int) error

type BlocksRange 

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

type ConcurrentDownloader 

type ConcurrentDownloader struct {
	*async.AtomicGroup
	*Result
}

func NewConcurrentDownloader 

func NewConcurrentDownloader(ctx context.Context) *ConcurrentDownloader

NewConcurrentDownloader creates ConcurrentDownloader instance.

type Controller 

type Controller struct {
	TransferFeed *event.Feed
	// contains filtered or unexported fields
}

func NewTransferController 

func NewTransferController(db *sql.DB, rpcClient *rpc.Client, accountFeed *event.Feed) *Controller

func (*Controller) CheckRecentHistory 

func (c *Controller) CheckRecentHistory(chainIDs []uint64, accounts []common.Address) error

func (*Controller) GetCachedBalances 

func (c *Controller) GetCachedBalances(ctx context.Context, chainID uint64, addresses []common.Address) ([]LastKnownBlockView, error)

func (*Controller) GetTransfersByAddress 

func (c *Controller) GetTransfersByAddress(ctx context.Context, chainID uint64, address common.Address, toBlock, limit *hexutil.Big, fetchMore bool) ([]View, error)

func (*Controller) LoadTransferByHash added in v0.91.10 

func (c *Controller) LoadTransferByHash(ctx context.Context, rpcClient *rpc.Client, address common.Address, hash common.Hash) error

func (*Controller) SetInitialBlocksRange 

func (c *Controller) SetInitialBlocksRange(chainIDs []uint64) error

func (*Controller) Start 

func (c *Controller) Start() error

func (*Controller) Stop 

func (c *Controller) Stop()

type DBHeader 

type DBHeader struct {
	Number         *big.Int
	Hash           common.Hash
	Timestamp      uint64
	Erc20Transfers []*Transfer
	Network        uint64
	Address        common.Address
	// Head is true if the block was a head at the time it was pulled from chain.
	Head bool
	// Loaded is true if trasfers from this block has been already fetched
	Loaded bool
}

DBHeader fields from header that are stored in database.

type Database 

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

Database sql wrapper for operations with wallet objects.

func NewDB 

func NewDB(client *sql.DB) *Database

func (*Database) Close 

func (db *Database) Close() error

Close closes database.

func (*Database) GetHeaderByNumber 

func (db *Database) GetHeaderByNumber(chainID uint64, number *big.Int) (header *DBHeader, err error)

GetHeaderByNumber selects header using block number.

func (*Database) GetPreloadedTransactions 

func (db *Database) GetPreloadedTransactions(chainID uint64, address common.Address, blockHash common.Hash) (rst []Transfer, err error)

func (*Database) GetTransactionsLog 

func (db *Database) GetTransactionsLog(chainID uint64, address common.Address, transactionHash common.Hash) (*types.Log, error)

func (*Database) GetTransfers 

func (db *Database) GetTransfers(chainID uint64, start, end *big.Int) (rst []Transfer, err error)

GetTransfers load transfers transfer betweeen two blocks.

func (*Database) GetTransfersByAddress 

func (db *Database) GetTransfersByAddress(chainID uint64, address common.Address, toBlock *big.Int, limit int64) (rst []Transfer, err error)

GetTransfersByAddress loads transfers for a given address between two blocks.

func (*Database) GetTransfersByAddressAndBlock 

func (db *Database) GetTransfersByAddressAndBlock(chainID uint64, address common.Address, block *big.Int, limit int64) (rst []Transfer, err error)

GetTransfersByAddressAndBlock loads transfers for a given address and block.

func (*Database) GetTransfersInRange 

func (db *Database) GetTransfersInRange(chainID uint64, address common.Address, start, end *big.Int) (rst []Transfer, err error)

GetTransfersInRange loads transfers for a given address between two blocks.

func (*Database) InsertBlock added in v0.91.10 

func (db *Database) InsertBlock(chainID uint64, account common.Address, blockNumber *big.Int, blockHash common.Hash) error

func (*Database) ProcessBlocks 

func (db *Database) ProcessBlocks(chainID uint64, account common.Address, from *big.Int, to *LastKnownBlock, headers []*DBHeader) (err error)

func (*Database) ProcessTranfers 

func (db *Database) ProcessTranfers(chainID uint64, transfers []Transfer, removed []*DBHeader) (err error)

ProcessTranfers atomically adds/removes blocks and adds new tranfers.

func (*Database) SaveBlocks 

func (db *Database) SaveBlocks(chainID uint64, account common.Address, headers []*DBHeader) (err error)

func (*Database) SaveHeaders 

func (db *Database) SaveHeaders(chainID uint64, headers []*types.Header, address common.Address) (err error)

SaveHeaders stores a list of headers atomically.

func (*Database) SaveTranfers 

func (db *Database) SaveTranfers(chainID uint64, address common.Address, transfers []Transfer, blocks []*big.Int) (err error)

SaveTranfers

type Downloader 

type Downloader interface {
	GetTransfersByNumber(context.Context, *big.Int) ([]Transfer, error)
}

Downloader downloads transfers from single block using number.

type ERC20TransfersDownloader 

type ERC20TransfersDownloader struct {
	// contains filtered or unexported fields
}

ERC20TransfersDownloader is a downloader for erc20 tokens transfers.

func NewERC20TransfersDownloader 

func NewERC20TransfersDownloader(client *chain.Client, accounts []common.Address, signer types.Signer) *ERC20TransfersDownloader

NewERC20TransfersDownloader returns new instance.

func (*ERC20TransfersDownloader) GetHeadersInRange 

func (d *ERC20TransfersDownloader) GetHeadersInRange(parent context.Context, from, to *big.Int) ([]*DBHeader, error)

GetHeadersInRange returns transfers between two blocks. time to get logs for 100000 blocks = 1.144686979s. with 249 events in the result set.

func (*ERC20TransfersDownloader) GetTransfers 

func (d *ERC20TransfersDownloader) GetTransfers(ctx context.Context, header *DBHeader) ([]Transfer, error)

GetTransfers for erc20 uses eth_getLogs rpc with Transfer event signature and our address acount.

type ETHDownloader 

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

ETHDownloader downloads regular eth transfers.

func (*ETHDownloader) GetTransfers 

func (d *ETHDownloader) GetTransfers(ctx context.Context, header *DBHeader) (rst []Transfer, err error)

GetTransfers checks if the balance was changed between two blocks. If so it downloads transaction that transfer ethereum from that block.

func (*ETHDownloader) GetTransfersByNumber 

func (d *ETHDownloader) GetTransfersByNumber(ctx context.Context, number *big.Int) ([]Transfer, error)

type Event 

type Event struct {
	Type        EventType        `json:"type"`
	BlockNumber *big.Int         `json:"blockNumber"`
	Accounts    []common.Address `json:"accounts"`
	Message     string           `json:"message"`
}

Event is a type for transfer events.

type EventType 

type EventType string

EventType type for event types. 

const (
	// EventNewTransfers emitted when new block was added to the same canonical chan.
	EventNewTransfers EventType = "new-transfers"
	// EventFetchingRecentHistory emitted when fetching of lastest tx history is started
	EventFetchingRecentHistory EventType = "recent-history-fetching"
	// EventRecentHistoryReady emitted when fetching of lastest tx history is started
	EventRecentHistoryReady EventType = "recent-history-ready"
	// EventFetchingHistoryError emitted when fetching of tx history failed
	EventFetchingHistoryError EventType = "fetching-history-error"
	// EventNonArchivalNodeDetected emitted when a connection to a non archival node is detected
	EventNonArchivalNodeDetected EventType = "non-archival-node-detected"
)

type HeaderReader 

type HeaderReader interface {
	HeaderByHash(ctx context.Context, hash common.Hash) (*types.Header, error)
	HeaderByNumber(ctx context.Context, number *big.Int) (*types.Header, error)
}

HeaderReader interface for reading headers using block number or hash.

type IterativeDownloader 

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

IterativeDownloader downloads batches of transfers in a specified size.

func SetupIterativeDownloader 

func SetupIterativeDownloader(
	db *Database, client HeaderReader, address common.Address,
	downloader BatchDownloader, size *big.Int, to *big.Int, from *big.Int, isBatchSizeAdjustable bool) (*IterativeDownloader, error)

SetupIterativeDownloader configures IterativeDownloader with last known synced block.

func (*IterativeDownloader) Finished 

func (d *IterativeDownloader) Finished() bool

Finished true when earliest block with given sync option is zero.

func (*IterativeDownloader) Header 

func (d *IterativeDownloader) Header() *big.Int

Header return last synced header.

func (*IterativeDownloader) Next 

func (d *IterativeDownloader) Next(parent context.Context) ([]*DBHeader, *big.Int, *big.Int, error)

Next moves closer to the end on every new iteration.

func (*IterativeDownloader) Revert 

func (d *IterativeDownloader) Revert()

Revert reverts last step progress. Should be used if application failed to process transfers. For example failed to persist them.

type JSONBlob 

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

JSONBlob type for marshaling/unmarshaling inner type to json.

func (*JSONBlob) Scan 

func (blob *JSONBlob) Scan(value interface{}) error

Scan implements interface.

func (*JSONBlob) Value 

func (blob *JSONBlob) Value() (driver.Value, error)

Value implements interface.

type LastKnownBlock 

type LastKnownBlock struct {
	Number  *big.Int
	Balance *big.Int
	Nonce   *int64
}

type LastKnownBlockView 

type LastKnownBlockView struct {
	Address common.Address `json:"address"`
	Number  *big.Int       `json:"blockNumber"`
	Balance bigint.BigInt  `json:"balance"`
	Nonce   *int64         `json:"nonce"`
}

type Reactor 

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

Reactor listens to new blocks and stores transfers into the database.

type Result 

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

func (*Result) Get 

func (r *Result) Get() []Transfer

func (*Result) GetHeaders 

func (r *Result) GetHeaders() []*DBHeader

func (*Result) GetRanges 

func (r *Result) GetRanges() [][]*big.Int

func (*Result) Push 

func (r *Result) Push(transfers ...Transfer)

func (*Result) PushHeader 

func (r *Result) PushHeader(block *DBHeader)

func (*Result) PushRange 

func (r *Result) PushRange(blockRange []*big.Int)

type SignalsTransmitter 

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

SignalsTransmitter transmits received events as wallet signals.

func (*SignalsTransmitter) Start 

func (tmr *SignalsTransmitter) Start() error

Start runs loop in background.

func (*SignalsTransmitter) Stop 

func (tmr *SignalsTransmitter) Stop()

Stop stops the loop and waits till it exits.

type SyncOption 

type SyncOption uint

SyncOption is used to specify that application processed transfers for that block.

type Transfer 

type Transfer struct {
	Type        Type               `json:"type"`
	ID          common.Hash        `json:"-"`
	Address     common.Address     `json:"address"`
	BlockNumber *big.Int           `json:"blockNumber"`
	BlockHash   common.Hash        `json:"blockhash"`
	Timestamp   uint64             `json:"timestamp"`
	Transaction *types.Transaction `json:"transaction"`
	Loaded      bool
	NetworkID   uint64
	// From is derived from tx signature in order to offload this computation from UI component.
	From    common.Address `json:"from"`
	Receipt *types.Receipt `json:"receipt"`
	// Log that was used to generate erc20 transfer. Nil for eth transfer.
	Log *types.Log `json:"log"`
}

Transfer stores information about transfer.

type Type 

type Type string

Type type of the asset that was transferred.

type View 

type View struct {
	ID                   common.Hash    `json:"id"`
	Type                 Type           `json:"type"`
	Address              common.Address `json:"address"`
	BlockNumber          *hexutil.Big   `json:"blockNumber"`
	BlockHash            common.Hash    `json:"blockhash"`
	Timestamp            hexutil.Uint64 `json:"timestamp"`
	GasPrice             *hexutil.Big   `json:"gasPrice"`
	MaxFeePerGas         *hexutil.Big   `json:"maxFeePerGas"`
	MaxPriorityFeePerGas *hexutil.Big   `json:"maxPriorityFeePerGas"`
	GasLimit             hexutil.Uint64 `json:"gasLimit"`
	GasUsed              hexutil.Uint64 `json:"gasUsed"`
	Nonce                hexutil.Uint64 `json:"nonce"`
	TxStatus             hexutil.Uint64 `json:"txStatus"`
	Input                hexutil.Bytes  `json:"input"`
	TxHash               common.Hash    `json:"txHash"`
	Value                *hexutil.Big   `json:"value"`
	From                 common.Address `json:"from"`
	To                   common.Address `json:"to"`
	Contract             common.Address `json:"contract"`
	NetworkID            uint64         `json:"networkId"`
}

View stores only fields used by a client and ensures that all relevant fields are encoded in hex.

func CastToTransferView 

func CastToTransferView(t Transfer) View

Source Files

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