Log

A Log in Ethereum represents an event that has been included in a transaction using the LOG* opcodes, which are most commonly used by Solidity’s emit for announcing events.

Extended by

Implements

LogParams

Properties

Property	Modifier	Type	Description
`address`	`readonly`	`string`	The address of the contract that emitted this log.
`blockHash`	`readonly`	`string`	The block hash of the block this log occurred in. Use the Log.getBlock to get the Block.
`blockNumber`	`readonly`	`number`	The block number of the block this log occurred in. It is preferred to use the Block.hash \| Block.hash when fetching the related Block, since in the case of an orphaned block, the block at that height may have changed.
`data`	`readonly`	`string`	The data included in this log when it was emitted.
`index`	`readonly`	`number`	The index within the block this log occurred at. This is generally not useful to developers, but can be used with the various roots to proof inclusion within a block.
`provider`	`readonly`	`Provider`	The provider connected to the log used to fetch additional details if necessary.
`removed`	`readonly`	`boolean`	If the Log represents a block that was removed due to an orphaned block, this will be true. This can only happen within an orphan event listener.
`topics`	`readonly`	readonly `string`[]	The indexed topics included in this log when it was emitted. All topics are included in the bloom filters, so they can be efficiently filtered using the Provider.getLogs method.
`transactionHash`	`readonly`	`string`	The transaction hash of the transaction this log occurred in. Use the Log.getTransaction to get the **TransactionResponse.
`transactionIndex`	`readonly`	`number`	The index within the transaction of this log.

Methods

getBlock()

getBlock(shard): Promise<Block>

Returns the block that this log occurred in.

Parameters

Parameter	Type	Description
`shard`	`Shard`	The shard to fetch the block from.

Returns

Promise<Block> A promise resolving to the block.

Source

providers/provider.ts:1089

getTransaction()

getTransaction(): Promise<TransactionResponse>

Returns the transaction that this log occurred in.

Returns

Promise<TransactionResponse> A promise resolving to the transaction.

Source

providers/provider.ts:1100

getTransactionReceipt()

getTransactionReceipt(): Promise<TransactionReceipt>

Returns the transaction receipt fot the transaction that this log occurred in.

Returns

Promise<TransactionReceipt> A promise resolving to the transaction receipt.

Source

providers/provider.ts:1111

toJSON()

toJSON(): any

Returns a JSON-compatible object.

Returns

any

Source

providers/provider.ts:1065

Getting Started

Fundamentals

Reference

Extended by

Implements

Properties

Methods

getBlock()

Parameters

Returns

Source

getTransaction()

Returns

Source

getTransactionReceipt()

Returns

Source

toJSON()

Returns

Source

​Extended by

​Implements

​Properties

​Methods

​getBlock()

​Parameters

​Returns

​Source

​getTransaction()

​Returns

​Source

​getTransactionReceipt()

​Returns

​Source

​toJSON()

​Returns

​Source

Extended by

Implements

Properties

Methods

getBlock()

Parameters

Returns

Source

getTransaction()

Returns

Source

getTransactionReceipt()

Returns

Source

toJSON()

Returns

Source