logs

Documentation

Index

• func ExactMatch(log *gethTypes.Log, criteria *FilterCriteria) bool
• type FilterCriteria
  • func NewFilterCriteria(addresses []common.Address, topics [][]common.Hash) (*FilterCriteria, error)
• type IDFilter
  • func NewIDFilter(id common.Hash, criteria FilterCriteria, blocks storage.BlockIndexer, ...) (*IDFilter, error)
  • func (i *IDFilter) Match() ([]*gethTypes.Log, error)
• type RangeFilter
  • func NewRangeFilter(start, end uint64, criteria FilterCriteria, receipts storage.ReceiptIndexer) (*RangeFilter, error)
  • func (r *RangeFilter) Match() ([]*gethTypes.Log, error)

Functions

func ExactMatch

func ExactMatch(log *gethTypes.Log, criteria *FilterCriteria) bool

ExactMatch checks the topic and address values of the log match the filter exactly.

Types

type FilterCriteria

type FilterCriteria struct {
	Addresses []common.Address
	Topics    [][]common.Hash
}

FilterCriteria for log filtering. Address of the contract emitting the log. Topics that match the log topics, following the format: [] “anything” [A] “A in first position (and anything after)” [null, B] “anything in first position AND B in second position (and anything after)” [A, B] “A in first position AND B in second position (and anything after)” [[A, B], [A, B]] “(A OR B) in first position AND (A OR B) in second position (and anything after)”

func NewFilterCriteria

func NewFilterCriteria(addresses []common.Address, topics [][]common.Hash) (*FilterCriteria, error)

type IDFilter

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

IDFilter matches all logs against the criteria found in a single block identified by the provided block ID.

func NewIDFilter

func NewIDFilter(
	id common.Hash,
	criteria FilterCriteria,
	blocks storage.BlockIndexer,
	receipts storage.ReceiptIndexer,
) (*IDFilter, error)

func (*IDFilter) Match

func (i *IDFilter) Match() ([]*gethTypes.Log, error)

type RangeFilter

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

RangeFilter matches all the indexed logs within the range defined as start and end block height. The start must be strictly smaller or equal than end value.

func NewRangeFilter

func NewRangeFilter(
	start, end uint64,
	criteria FilterCriteria,
	receipts storage.ReceiptIndexer,
) (*RangeFilter, error)

func (*RangeFilter) Match

func (r *RangeFilter) Match() ([]*gethTypes.Log, error)