![]() ![]() If you want to understand more about how transactions on Ethereum work, check out this transactions guide by the Ethereum Foundation. For this tutorial, we will use MetaMask, a browser-compatible cryptocurrency wallet used to manage your wallet address. Therefore, we need an Ethereum wallet and add a custom Polygon URL to send and receive transactions on the Polygon Mumbai testnet. Polygon PoS is a layer 2 scaling solution for Ethereum. Your new app should appear in the table below. Name your new app Hello World, offer a short description, select Polygon for the chain, and choose Polygon Mumbai for your network.įinally, click on Create app. To generate a new API key, navigate to the Apps tab on the Alchemy dashboard navigation bar and select the Create App sub-tab. If you’re not familiar with testnets, check out this testnet guide. This authenticates the requests made to the Polygon Mumbai testnet. After creating your account, you have the option of immediately creating your first app before reaching the dashboard.Īfter successfully creating an Alchemy account, you will need to generate an API key by creating an app. If you don’t already have an Alchemy account, start by signing up for a free account here. The platform consists of a full suite of developer tooling – this includes the ability to monitor requests, data analytics that demonstrates what happens under the hood during smart contract deployment, enhanced APIs (Transact, NFTs, etc), and an ethers.js SDK. Rather than running your own node, you will use a free account on Alchemy's developer platform and interact with the Alchemy Polygon PoS API to communicate with the Polygon PoS chain. ![]() There are several ways to make requests to the Polygon PoS chain. Check contract status on Alchemy's platformĬreate and Deploy your Smart Contract Connect to the Polygon network .Use Hardhat and Ethers.js to compile and deploy the project.Add balance to the wallet (using test tokens).Verify contract calls in a blockchain explorer.To create a smart contract in this tutorial, you will learn how to use Alchemy's platform to: If you have questions or concerns, please reach out to the Alchemy team via their official Discord server. ![]()
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