StablecoinRateFeeder

Documentation for eth_defi.feed.stablecoin_rate.StablecoinRateFeeder Python class.

class StablecoinRateFeeder

Bases: object

Cached stablecoin rate/depeg lookup helper for vault metrics.

Attributes summary

data_dir
depegged_contracts	Set of (chain_id, lowercased_address) keys for depegged tokens (built lazily, cached).
depegged_symbols	Set of unambiguously depegged normalised symbols (built lazily, cached).

Methods summary

__init__([data_dir])
get_denomination_token_rate_section(...)	Resolve a vault denomination token to exported rate metadata.
is_depegged_stablecoin_token(chain_id, ...)	Return True when a denomination token is marked depegged.

__init__(data_dir=PosixPath('/home/runner/work/web3-ethereum-defi/web3-ethereum-defi/eth_defi/data/stablecoins'))

Parameters

data_dir (pathlib.Path) –

Return type

None

property depegged_contracts: set[tuple[int, str]]

Set of (chain_id, lowercased_address) keys for depegged tokens (built lazily, cached).

property depegged_symbols: set[str]

Set of unambiguously depegged normalised symbols (built lazily, cached).

get_denomination_token_rate_section(chain_id, address, symbol)

Resolve a vault denomination token to exported rate metadata.

Parameters

• chain_id (Optional[int]) –

• address (Optional[Union[eth_typing.evm.HexAddress, str]]) –

• symbol (Optional[str]) –

Return type

eth_defi.feed.stablecoin_rate.DenominationTokenRate

is_depegged_stablecoin_token(chain_id, address, symbol)

Return True when a denomination token is marked depegged.

Parameters

• chain_id (Optional[int]) –

• address (Optional[Union[eth_typing.evm.HexAddress, str]]) –

• symbol (Optional[str]) –

Return type

bool