xdc3-providers-http

import Web3HttpProvider from 'xdc3-providers-http'; import XDC3 from 'xdc3'; // Ensure 'xdc3' package is also installed // --- Configuration --- // It's good practice to get URLs from environment variables const xdcNodeUrl = process.env.XDC_NODE_URL ?? 'http://localhost:8545'; // --- Provider Options (HttpProviderOptions type) --- const providerOptions = { keepAlive: true, timeout: 30000, // RPC call timeout in milliseconds headers: [ { name: 'X-App-Name', value: 'MyXDC3App' }, { name: 'Authorization', value: `Bearer ${process.env.XDC_AUTH_TOKEN ?? ''}` } // Example for authenticated nodes ], // For custom HTTP agent configuration in Node.js, e.g., to increase maxSockets: // agent: { http: new (require('http').Agent)({ maxSockets: 10 }), https: new (require('https').Agent)({ maxSockets: 10 }) }, }; // --- Instantiate the Provider --- const provider = new Web3HttpProvider(xdcNodeUrl, providerOptions); // --- Instantiate XDC3 with the provider --- const xdc3 = new XDC3(provider); // --- Example Usage: Get the current block number and chain ID --- async function getCurrentBlockchainInfo() { try { const blockNumber = await xdc3.eth.getBlockNumber(); const chainId = await xdc3.eth.getChainId(); console.log(`Successfully connected to XDC node at ${xdcNodeUrl}`); console.log(`Current block number: ${blockNumber}`); console.log(`Connected to Chain ID: ${chainId}`); } catch (error) { console.error('Failed to connect or retrieve data from XDC node:', error); if (error instanceof Error) { console.error(`Error details: ${error.message}`); } } } getCurrentBlockchainInfo(); // To run this example: // 1. Install packages: npm install xdc3 xdc3-providers-http // 2. Ensure an XDC node is accessible at the specified URL (e.g., http://localhost:8545). // 3. If using TypeScript, you can run directly with 'npx ts-node your-script.ts' (install ts-node).