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Versions in this module

v1

v1.0.7

Apr 22, 2026

v1.0.6

Apr 13, 2026

v1.0.5

Jul 30, 2024

v1.0.4

Nov 24, 2021

v1.0.3

Mar 9, 2021

v1.0.2

Feb 19, 2021

v1.0.1

Jan 19, 2021

Changes in this version

+ type BlockEvent struct

+ Added []*web3.Block

+ Removed []*web3.Block

+ Type EventType

+ type BlockTracker interface

+ Track func(context.Context, func(block *web3.Block)) error

+ type Config struct

+ BatchSize uint64

+ EtherscanAPIKey string

+ EtherscanFastTrack bool

+ MaxBlockBacklog uint64

+ func DefaultConfig() *Config

+ type Event struct

+ Added []*web3.Log

+ Removed []*web3.Log

+ Type EventType

+ type EventType int

+ const EventAdd

+ const EventDel

+ type Filter struct

+ DoneCh chan struct{}

+ EventCh chan *Event

+ SyncCh chan uint64

+ func (f *Filter) GetLastBlock() (*web3.Block, error)

+ func (f *Filter) IsSynced() bool

+ func (f *Filter) Sync(ctx context.Context) error

+ func (f *Filter) SyncAsync(ctx context.Context)

+ func (f *Filter) Wait()

+ func (f *Filter) WaitDuration(dur time.Duration) error

+ type FilterConfig struct

+ Address []web3.Address

+ Async bool

+ Topics []*web3.Hash

+ func (f *FilterConfig) Hash() string

+ type JSONBlockTracker struct

+ PollInterval time.Duration

+ func NewJSONBlockTracker(logger *log.Logger, provider Provider) *JSONBlockTracker

+ func (k *JSONBlockTracker) Track(ctx context.Context, handle func(block *web3.Block)) error

+ type Provider interface

+ BlockNumber func() (uint64, error)

+ ChainID func() (*big.Int, error)

+ GetBlockByHash func(hash web3.Hash, full bool) (*web3.Block, error)

+ GetBlockByNumber func(i web3.BlockNumber, full bool) (*web3.Block, error)

+ GetLogs func(filter *web3.LogFilter) ([]*web3.Log, error)

+ type SubscriptionBlockTracker struct

+ func NewSubscriptionBlockTracker(logger *log.Logger, client *jsonrpc.Client) (*SubscriptionBlockTracker, error)

+ func (s *SubscriptionBlockTracker) Track(ctx context.Context, handle func(block *web3.Block)) error

+ type Tracker struct

+ BlockCh chan *BlockEvent

+ func NewTracker(provider Provider, config *Config) *Tracker

+ func (t *Tracker) GetSavedFilters() ([]*FilterConfig, error)

+ func (t *Tracker) NewFilter(config *FilterConfig) (*Filter, error)

+ func (t *Tracker) SetLogger(logger *log.Logger)

+ func (t *Tracker) SetStore(store store.Store)

+ func (t *Tracker) Start(ctx context.Context) error

+ func (t *Tracker) Sync(ctx context.Context, filter *Filter) error

+ func (t *Tracker) SyncAsync(ctx context.Context, filter *Filter)