Module filter

Transaction and event filtering functionality.

Implements the core filtering logic for monitoring blockchain activity:

• Block filtering for different chain types
• Match handling and processing
• Chain-specific helper functions

Modules

evm_helpers

Helper functions for EVM-specific operations.

stellar_helpers

Helper functions for Stellar-specific operations.

Structs

EVMBlockFilter

Filter implementation for EVM-compatible blockchains

EVMConditionEvaluator

EventMap

Represents a mapping between a Stellar event and its transaction hash

FilterService

Service for filtering blockchain data

StellarBlockFilter

Implementation of the block filter for Stellar blockchain

StellarConditionEvaluator

Enums

ComparisonOperator

Represents the possible comparison operators that can be used in filter expressions.

EvaluationError

FilterError

Represents errors that can occur during filter operations

LiteralValue

Represents the possible literal values that can be used in filter expressions. The LiteralValue enum captures the different constant values that are used on the right side of a condition (RHS).

Traits

BlockFilter

Trait for filtering blockchain data

ConditionEvaluator

The ConditionEvaluator trait defines methods for evaluating conditions in filter expressions.

Functions

handle_match

Process a monitor match by executing associated triggers.

Type Aliases

EVMArgs

StellarArgs