How to Access the ETH/UNI Pool in Uniswap V3 on the Goerli Testnet

Learn how to easily access the `ETH/UNI` pool in Uniswap V3 on the Goerli testnet by using the correct WETH token address. --- This video is based on the question https://stackoverflow.com/q/74431221/ asked by the user 'Lazaro Nascimento' ( https://stackoverflow.com/u/20419084/ ) and on the answer https://stackoverflow.com/a/74431462/ provided by the user 'Lazaro Nascimento' ( https://stackoverflow.com/u/20419084/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions. Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: How to get access to ETH/UNI pool in uniswap v3 on Goerli testnet? Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/licensing The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/by-sa/4.0/ ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/by-sa/4.0/ ) license. If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com. --- Accessing the ETH/UNI Pool on Uniswap V3: A Guide for Goerli Testnet Users If you’re delving into the world of decentralized finance (DeFi) using Uniswap V3, you might find yourself in need of accessing a specific liquidity pool on the Goerli testnet. A common question among developers and crypto enthusiasts is how to correctly access the ETH/UNI pool. In this post, we’ll guide you through the process, troubleshoot common issues, and explain the relationship between ETH and WETH. The Problem: Accessing the ETH/UNI Pool Many users have faced a frustrating issue when trying to access the ETH/UNI pool on the Goerli testnet. Here's a breakdown of the problem: Attempting to Get Pool Instance: When calling the getPool() function with a WETH token address, users find that it returns 0x0, indicating that no such pool exists. WETH Balance Issues: Users often check their WETH balance and are confused when it returns 0, despite holding an amount of WETH. This situation can lead to confusion, especially for those who are new to Uniswap and the workings of testnets. The Solution: Using the Correct WETH Token Address The solution to accessing the ETH/UNI pool is fairly straightforward: ensure you are using the correct WETH token address on the Goerli testnet. Here’s how to do it: Step 1: Identify the Correct WETH Address In our case, the initial WETH token address used was incorrect: Incorrect Address: 0x0Bb7509324cE409F7bbC4b701f932eAca9736AB7 To resolve the issue, you need to switch to the updated address: Correct Address: 0xB4FBF271143F4FBf7B91A5ded31805e42b2208d6 Step 2: Accessing the Pool Once you've updated to the correct WETH address, you can call the getPool() function. Here’s a simple process: Use the correct WETH token address: [[See Video to Reveal this Text or Code Snippet]] Ensure ETH_ADDRESS is pointing to the right Ethereum representation based on the Goerli testnet. Step 3: Verifying WETH Balance After correcting the WETH address, verify your WETH balance again. You should no longer see a 0 return and can proceed with liquidity pooling on Uniswap. Understanding ETH vs. WETH For those new to this ecosystem, it's essential to understand the difference between ETH and WETH: ETH: This is the native cryptocurrency of the Ethereum blockchain. WETH (Wrapped Ether): WETH is an ERC-20 token that allows ETH to be traded on decentralized exchanges like Uniswap. It represents ETH in the ERC-20 token format. In most cases, you need to wrap your ETH into WETH for liquidity pools, trading, or any ERC-20 token transactions. Conclusion Accessing the ETH/UNI pool in Uniswap V3 on the Goerli testnet may seem tricky at first, especially if you encounter issues with WETH address misconfiguration. However, by ensuring you use the correct WETH address, you can successfully access the pool and continue exploring the exciting world of decentralized finance. Happy trading!