OneDeltaPriceHelper

Documentation for eth_defi.one_delta.price.OneDeltaPriceHelper Python class.

class OneDeltaPriceHelper

Bases: object

Internal helper class for price calculations.

Methods summary

__init__(one_delta)
get_amount_in(amount_out, path, fees[, ...])	Get how much token we are going to spend.
get_amount_out(amount_in, path, fees[, ...])	Get how much token we are going to receive.

__init__(one_delta)

Parameters

one_delta (eth_defi.one_delta.deployment.OneDeltaDeployment) –

get_amount_out(amount_in, path, fees, exchange=Exchange.UNISWAP_V3, *, slippage=0, block_identifier=None)

Get how much token we are going to receive.

Parameters

• amount_in (int) – Amount of input asset.

• path (list[eth_typing.evm.HexAddress]) – List of token addresses how to route the trade

• fees (list[int]) – List of trading fees of the pools in the route

• exchange (eth_defi.one_delta.constants.Exchange) – exchange to be used for the swap

• slippage (float) – Slippage express in bps

• block_identifier (int | None) – A specific block to estimate price

Return type

int

get_amount_in(amount_out, path, fees, exchange=Exchange.UNISWAP_V3, *, slippage=0, block_identifier=None)

Get how much token we are going to spend.

Parameters

• amount_in – Amount of output asset.

• path (list[eth_typing.evm.HexAddress]) – List of token addresses how to route the trade

• fees (list[int]) – List of trading fees of the pools in the route

• exchange (eth_defi.one_delta.constants.Exchange) – exchange to be used for the swap

• slippage (float) – Slippage express in bps

• block_identifier (int | None) – A specific block to estimate price

• amount_out (int) –

Return type

int