How hard can it be to learn the price of an erc20 token in terms of usdc in uniswapv3. a hint: its really hard. Any resource that you know that exactly explains how to get a price of any erc20 token from uniswapv3 with code?
1 Answer
The idea is to get the conversion to of the token to ETH, and then the conversion of ETH to USDC (assuming that the token's main liquidity is Token/WETH).
You can do this by checking the pair address of the Token/WETH and then getting its sqrtPriceX96 by reading slot0. You will be able to get the conversion ratio in this way.
For example: In NEIRO/WETH pair address "read contract". If you call slot0, the first index will display sqrtPriceX96. You can then get the actual token to WETH conversion through this formula:
price_ratio = ((sqrtpricex96 ** 2) / (2 ** 192))
weth_amount = price_ratio * token_amount_in_wei
The resulting weth_amount will be in WEI. The formula is explained here for reference
And so, after this, just repeat the steps for converting the wETH amount to USDT or USDC.
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