AaveLiquidationReader

Documentation for eth_defi.aave_v3.liquidation.AaveLiquidationReader Python class.

class AaveLiquidationReader

Bases: object

Methods summary

__init__(client, web3[, hypersync_read_timeout])
build_query(start_block, end_block)	Create liquidation event query.
decode_event(chain_id, chain_name, log, ...)	Decode liquidation event from the log data.
fetch_liquidations(start_block, end_block)
fetch_liquidations_async(start_block, end_block)	Identify smart contracts emitting 4626 like events.
resolve_token(address)	Resolve token address to checksum address.

__init__(client, web3, hypersync_read_timeout=90)

Parameters

• client (hypersync.HypersyncClient) –

• web3 (web3.main.Web3) –

• hypersync_read_timeout (float) –

resolve_token(address)

Resolve token address to checksum address.

• Cached

Parameters

address (eth_typing.evm.HexAddress) –

Return type

eth_defi.token.TokenDetails

build_query(start_block, end_block)

Create liquidation event query.

The event in the question:

// Event Signature
// 0xe413a321e8681d831f4dbccbca790d2952b56f977908e45be37335533e005286

LiquidationCall(
    address collateralAsset,
    address debtAsset,
    address user,
    uint256 debtToCover,
    uint256 liquidatedCollateralAmount,
    address liquidator,
    bool receiveAToken
)

See also:

• https://www.quicknode.com/sample-app-library/ethereum-aave-liquidation-tracker

Parameters

• start_block (int) –

• end_block (int) –

decode_event(chain_id, chain_name, log, block_lookup)

Decode liquidation event from the log data.

• Convert raw addresses and amounts to more manageable format

Parameters

• chain_id (int) –

• chain_name (str) –

• log (hypersync.Log) –

• block_lookup (dict) –

Return type

eth_defi.aave_v3.liquidation.AaveLiquidationEvent

async fetch_liquidations_async(start_block, end_block, display_progress=True)

Identify smart contracts emitting 4626 like events.

• Scan all event matches using HyperSync

• See stream() example here: https://github.com/enviodev/hypersync-client-python/blob/main/examples/all-erc20-transfers.py

Parameters

• start_block (int) –

• end_block (int) –

Return type

AsyncIterable[eth_defi.aave_v3.liquidation.AaveLiquidationEvent]