eosjs

import { JsonRpc } from 'eosjs'; import { Api, RpcInterfaces } from 'eosjs'; import { JsSignatureProvider } from 'eosjs/dist/eosjs-jssig'; // Example signature provider import { TextEncoder, TextDecoder } from 'util'; // For Node.js environments // Configuration const defaultPrivateKey = process.env.EOS_PRIVATE_KEY ?? ''; // Replace with an actual private key for signing, DO NOT expose in client-side code. const rpcEndpoint = 'https://eos.greymass.com'; // Example public EOS mainnet endpoint // 1. Setup RPC client const rpc = new JsonRpc(rpcEndpoint, { fetch }); // Using global fetch or node-fetch in Node.js // 2. Setup SignatureProvider (required even for read-only if you intend to send transactions later) // For demonstration, using a JS-based signature provider. In production, consider more secure options. const signatureProvider = new JsSignatureProvider([defaultPrivateKey]); // 3. Setup API client const api = new Api({ rpc, signatureProvider, textDecoder: new TextDecoder(), // Required for Node.js textEncoder: new TextEncoder(), // Required for Node.js }); async function runExample() { try { console.log(`Querying a public contract table on ${rpcEndpoint}...`); // Example: Get 'stat' table from 'eosio.token' contract for 'EOS' symbol const tableRows = await rpc.get_table_rows({ json: true, code: 'eosio.token', scope: 'EOS', table: 'stat', lower_bound: null, upper_bound: null, limit: 1, }); console.log('Table Rows (eosio.token, EOS, stat):', JSON.stringify(tableRows, null, 2)); // Example of pushing a transaction (requires a valid private key and account for 'youraccount') // This part is commented out as it requires a real key and funded account to execute. /* if (defaultPrivateKey && defaultPrivateKey !== '') { console.log('Attempting to push a dummy transaction...'); const transactionResult = await api.transact({ actions: [{ account: 'eosio.token', name: 'transfer', authorization: [{ actor: 'youraccount', // Replace with your EOS account name permission: 'active', }], data: { from: 'youraccount', to: 'teamgreymass', // Example recipient quantity: '0.0001 EOS', // Use a small test amount memo: 'Test transfer from eosjs quickstart', }, }] }, { blocksBehind: 3, expireSeconds: 30, }); console.log('Transaction Result:', JSON.stringify(transactionResult, null, 2)); } */ } catch (error) { console.error('Error:', error); if (error instanceof RpcInterfaces.RpcError) { console.error('RPC Error details:', JSON.stringify(error.json, null, 2)); } } } runExample();