In this post, we will see how to resolve How to get access to ETH/UNI pool in uniswap v3 on Goerli testnet? Question: I want to get pool instance of ETH/UNI pool in Uniswap V3 on Goerli testnet. I tried ...

Question: In my understanding, smart contracts on Ethereum are immutable once they are pushed onto chain. Then how does uniswap keeps upgrading itself from v1 to v2 to v3? How can they modify their smart contract code? “They” here apparently ...

Question: So, I’m new to solidity and I’ve been trying to make a contract that can call another contract. I’ve found some articles describing this exact problem such as: https://soliditydeveloper.com/uniswap2 Altough, even with the provided code I can’t make it ...

Question: I am looking for a way to create an automated test suite with Truffle that can test my smart contract’s interactions with Uniswap V2. The Uniswap docs briefly mention testing with Truffle but do not provide any examples. I ...

Question: In my contract I’m trying to swap Eth for Dai using Uniswap’s swapExactETHForTokens() function: However on this line in swapExactETHForTokens(): Remix IDE is showing the follow error: I’m confused, because at the top I’ve already declared swapExactETHForTokens() to be ...

Question: I’m trying to implement swap with new Uniswap V3 contracts. I’m using Quoter contract for getting the quotes out and SwapRouter for making the swaps. If I’m using methods for direct swap (when tokens have pools) for example – ...

Question: I was reimplementing the Uniswap v2 contracts and I just could not figure this out. https://github.com/Uniswap/v2-core/blob/master/contracts/UniswapV2Pair.sol So, from what I understand : If a pair exchange / liquidity pool doesn’t exist upon adding liquidity, the UniswapFactory.sol creates a new ...

Question: if amountIn is 1, res is 0 if amountIn is 2, res is 2730, close to the real market price if amountIn is 3, res is 5461, … so the real amountIn is (amountIn – 1) why? And the ...

Question: I am building a scraper to get all Swap data from Uniswap using web3js. So far I subscribe to the log and filter topics by Swap() event. then I decode the data and get amount0In, amount1In, amount0Out, amount1Out. My ...