Logs

Logs (or event logs), is a way for smart contracts to communicate with the outside world by "documenting" small pieces of information. Event logs allow other people to know that something has happened without them having to query the contract directly.

Table Columns

Unique Key: transaction_hash, log_index

Column Name	Description
block_number	The length of the chain, in blocks.
block_timestamp	The time when the block that contains this log was included on the blockchain.
block_hash	Unique identifier of the block that includes this log.
address	The address of the contract that emitted this log.
data	Unindexed data containing further information of the event, encoded in hex.
topic0	The keccak256 hash of a flattened event signature string.
topic1	First indexed topic of the event.
topic2	Second indexed topic of the event
topic3	Third indexed topic of the event.
log_index	The position of this log in the block that it belongs to. The first log has index 0.
transaction_hash	Unique identifier of the transaction that this log belongs to.
transaction_index	The position of this transaction in the block that it belongs to. The first transaction has index 0.
from_address	The address of the sending party of this transaction.
to_address	The address of the receiving party of this transaction, typically a contract address for logs.
_created_at	Timestamp of the entry creation.
_updated_at	Timestamp of the entry update.