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Where to find Uniswap contract addresses on Goerli testnet

I am attempting to create a nodejs arbitrage bot. I can get my bot to fetch pairs from the mainnet but cannot fetch Uniswap pairs using the Goerli testnet.

For example, on the mainnet to get the WETH/WBTC pair I use:

const provider = new ethers.providers.InfuraProvider('mainnet', process.env.INFURA_KEY);  const wallet = new ethers.Wallet(privateKey, provider);  const uniswapFactory = new ethers.Contract(   '0x5C69bEe701ef814a2B6a3EDD4B1652CB9cc5aA6f',   UniswapV2Factory.abi, wallet, );  const wethAddress = '0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2'; const wbtcAddress = '0x2260fac5e5542a773aa44fbcfedf7c193bc2c599'   const wbtcPairContract = new ethers.Contract(   uniswapFactory.getPair(wethAddress, wbtcAddress),   UniswapV2Pair.abi, wallet, );

And I get the wbtc address from https://etherscan.io/address/0x2260fac5e5542a773aa44fbcfedf7c193bc2c599

However, if I try and use the Goerli testnet I use https://goerli.etherscan.io/address/0x5C69bEe701ef814a2B6a3EDD4B1652CB9cc5aA6f for my Uniswap factory contract, https://goerli.etherscan.io/address/0xb4fbf271143f4fbf7b91a5ded31805e42b2208d6 for my WETH & https://goerli.etherscan.io/address/0xe6d830937fa8db2ebd2c046c58f797a95550fa4e for my wbtc.

When trying to get the pair for the above I get:

Error: call revert exception [ See: https://links.ethers.org/v5-errors-CALL_EXCEPTION ] (method="getReserves()", data="0x", errorArgs=null, errorName=null, errorSignature=null, reason=null, code=CALL_EXCEPTION, version=abi/5.6.4)     at Logger.makeError (/Users/random/GolandProjects/random/uni-sushi-flashloaner/node_modules/@ethersproject/logger/lib/index.js:233:21)     at Logger.throwError (/Users/random/GolandProjects/random/uni-sushi-flashloaner/node_modules/@ethersproject/logger/lib/index.js:242:20)     at Interface.decodeFunctionResult (/Users/random/GolandProjects/random/uni-sushi-flashloaner/node_modules/@ethersproject/abi/lib/interface.js:388:23)     at Contract.<anonymous> (/Users/random/GolandProjects/random/uni-sushi-flashloaner/node_modules/@ethersproject/contracts/lib/index.js:395:56)     at step (/Users/random/GolandProjects/random/uni-sushi-flashloaner/node_modules/@ethersproject/contracts/lib/index.js:48:23)     at Object.next (/Users/random/GolandProjects/random/uni-sushi-flashloaner/node_modules/@ethersproject/contracts/lib/index.js:29:53)     at fulfilled (/Users/random/GolandProjects/roger/uni-sushi-flashloaner/node_modules/@ethersproject/contracts/lib/index.js:20:58)     at processTicksAndRejections (node:internal/process/task_queues:96:5) {   reason: null,   code: 'CALL_EXCEPTION',   method: 'getReserves()',   data: '0x',   errorArgs: null,   errorName: null,   errorSignature: null,   address: Promise { '0x0000000000000000000000000000000000000000' },   args: [],   transaction: {     data: '0x0902f1ac',     to: '0x0000000000000000000000000000000000000000',     from: '0x4Aec689A464ba3676Eb04ec1c7278819CB9B8521'   } }

Can anyone see where I am going wrong? Or is there a list of contract addresses to use on the testnets for testing Uniswap?

Thanks

‘Big Move’ Coming to MATIC, Hints Price Metric As Polygon Gains Massive Edge With zkEVM Rollups

Polygon has taken Ethereum scaling to the next level in what appears to be a massive technological innovation for the crypto industry. The top-tier scaling solution platform announced the introduction of zkEVM – the first ever zero-knowledge Layer-2 solution fully compatible with the Ethereum Virtual Machine (EVM). This comes when MATIC (Polygon’s native token) has ::Listen

Polygon Gains Massive Edge As It Activates MATIC Burn Via Ethereum's Groundbreaking EIP-1559

Polygon has taken Ethereum scaling to the next level in what appears to be a massive technological innovation for the crypto industry. The top-tier scaling solution platform announced the introduction of zkEVM – the first ever zero-knowledge Layer-2 solution fully compatible with the Ethereum Virtual Machine (EVM). This comes when MATIC (Polygon’s native token) has seen a surge of 30% in the past ten days.

The zkEVM will make sure scalability is retained while allowing projects to run on Ethereum

The groundbreaking innovation combines the scaling capabilities of zero-knowledge rollups with the security and universality of the EVM. This means that Polygon’s novel zkEVM solution will ensure scalability while allowing projects to run on Ethereum.

The Polygon team revealed that they are releasing a complete implementation of the solution, which would be open source, further stating, “we’re just getting started.”

The zero-knowledge proof in the blockchain is a cryptographic technique that allows one party to prove to another party that a transaction happened on a chain without necessarily revealing additional information.

Zero-knowledge rollups are utilised in modern blockchain tech to help the chain validate transactions faster without attracting more gas fees. They do this by rolling up a large bundle of transactions and validating them at once using one validity proof. The validity proof is then sent to the Layer-1 chain as a surrogate for the transactions. This improves blockchain scalability, reducing the load on the L1 network.

As Polygon’s zkEVM is rolled out, MATIC sees a rally of 30% in 10 days

Nonetheless, ZK Rollups have issues with generating any single validity proof. The process is a highly complex and time-consuming one; this further makes it expensive. Additionally, while ZK Rollups help improves scalability, they are not generally compatible with Ethereum Virtual Machine (EVM).

Polygon’s zkEVM seeks to solve this. The official announcement notes that the Polygon team has “significantly improved proof-generation times” for the ZK Rollups, which would improve speed and reduce gas fees. Furthermore, the EVM compatibility of zkEVM means that any project on Ethereum will work on the zkEVM.

At the same time, the green market has seen MATIC rally by 30% in the past ten days to reach a value of $0.9 as of press time, making it one of the most significant gaining assets in the crypto space in 7 days.

MATIC’s Exchange Reserve metric also shows a lower selling pressure, indicating a bullish trend. Market sentiments are also looking good for the asset, and with this exciting rollout from the team, we expect that to get even better.