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ENS-lookup function
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| import Web3 from "web3"; | |
| export const main = async ({ path = "vitalik.eth" }) => { | |
| const ensDomain = path.split("/").pop(); | |
| // Check if the path is a valid string | |
| if (typeof ensDomain !== "string" || !ensDomain.endsWith(".eth")) { | |
| throw new Error("Invalid ENS domain"); | |
| } | |
| const provider = new Web3.providers.HttpProvider( | |
| "https://cloudflare-eth.com" | |
| ); | |
| const web3 = new Web3(provider); | |
| try { | |
| // Resolve the ENS name to an Ethereum address | |
| const address = await web3.eth.ens.getAddress(ensDomain); | |
| if (!address) { | |
| throw new Error(`No address found for ENS domain: ${ensDomain}`); | |
| } | |
| // Get the Ethereum balance in Wei | |
| const balance = await web3.eth.getBalance(address); | |
| // Convert balance from Wei to Ether | |
| const ethBalance = web3.utils.fromWei(balance, "ether"); | |
| return `<html> | |
| <body style="font-family: Arial, sans-serif; text-align: center; background-color: #f0f0f0; padding: 20px;"> | |
| <h1 style="color: #333;">ENS Lookup</h1> | |
| <p style="font-size: 18px;">ENS domain: <strong>${ensDomain}</strong></p> | |
| <p style="font-size: 18px;">Address: <strong>${address}</strong></p> | |
| <p style="font-size: 18px;">Balance: <strong>${ethBalance} ETH</strong></p> | |
| </body> | |
| </html>`; | |
| } catch (error) { | |
| console.error("Error:", error.message); | |
| return `<html> | |
| <body style="font-family: Arial, sans-serif; text-align: center; background-color: #f0f0f0; padding: 20px;"> | |
| <h1 style="color: red;">Error</h1> | |
| <p style="font-size: 18px;">${error.message}</p> | |
| </body> | |
| </html>`; | |
| } | |
| }; |
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