estimate_buy_price
Documentation for eth_defi.uniswap_v2.fees.estimate_buy_price function.
- estimate_buy_price(uniswap, base_token, quote_token, quantity, *, fee=30, slippage=0, intermediate_token=None)[source]
Estimate how much we are going to need to pay when doing buy.
Calls the on-chain contract to get the current liquidity and estimates the the price based on it.
Example:
# Estimate how much ETH we will receive for 500 USDC. # In this case the pool ETH price is $1700 so this should be below ~1/4 of ETH amount_eth = estimate_buy_price( uniswap_v2, weth, usdc, 1*10**18, ) assert amount_eth / 1e18 == pytest.approx(0.28488156127668085)
- Parameters
uniswap (eth_defi.uniswap_v2.deployment.UniswapV2Deployment) – Uniswap v2 deployment
base_token (web3.contract.contract.Contract) – Base token of the trading pair
quote_token (web3.contract.contract.Contract) – Quote token of the trading pair
quantity (int) – How much of the base token we want to buy
fee (int) – Trading fee express in bps, default = 30 bps (0.3%)
slippage (float) – Slippage express in bps
intermediate_token (Optional[web3.contract.contract.Contract]) –
- Returns
Expected base token to receive
- Return type