@walletconnect/jsonrpc-provider

What is @walletconnect/jsonrpc-provider?

@walletconnect/jsonrpc-provider is a JavaScript library that provides a JSON-RPC provider for WalletConnect. It allows developers to interact with blockchain networks using the JSON-RPC protocol, facilitating communication between decentralized applications (dApps) and blockchain nodes.

What are @walletconnect/jsonrpc-provider's main functionalities?

Initialize JSON-RPC Provider

This feature allows you to initialize a JSON-RPC provider with a given URL, such as an Infura endpoint. This is the first step to start interacting with a blockchain network.

const { JsonRpcProvider } = require('@walletconnect/jsonrpc-provider');
const provider = new JsonRpcProvider('https://mainnet.infura.io/v3/YOUR_INFURA_PROJECT_ID');

Send JSON-RPC Request

This feature allows you to send a JSON-RPC request to the blockchain network. In this example, it requests the current block number using the 'eth_blockNumber' method.

const { JsonRpcProvider } = require('@walletconnect/jsonrpc-provider');
const provider = new JsonRpcProvider('https://mainnet.infura.io/v3/YOUR_INFURA_PROJECT_ID');

async function getBlockNumber() {
  const blockNumber = await provider.request({ method: 'eth_blockNumber', params: [] });
  console.log('Current block number:', blockNumber);
}

getBlockNumber();

Handle JSON-RPC Responses

This feature demonstrates how to handle JSON-RPC responses. In this example, it requests the balance of a specific Ethereum address using the 'eth_getBalance' method.

const { JsonRpcProvider } = require('@walletconnect/jsonrpc-provider');
const provider = new JsonRpcProvider('https://mainnet.infura.io/v3/YOUR_INFURA_PROJECT_ID');

async function getBalance(address) {
  const balance = await provider.request({ method: 'eth_getBalance', params: [address, 'latest'] });
  console.log('Balance:', balance);
}

getBalance('0x742d35Cc6634C0532925a3b844Bc454e4438f44e');

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Web3.js is a collection of libraries that allow you to interact with a local or remote Ethereum node using HTTP, IPC, or WebSocket. It provides a more comprehensive set of features compared to @walletconnect/jsonrpc-provider, including contract interaction, account management, and utilities for working with Ethereum data.

ethers

Ethers.js is a library for interacting with the Ethereum blockchain and its ecosystem. It is designed to be a complete and compact library for interacting with the Ethereum blockchain, providing utilities for signing transactions, interacting with smart contracts, and more. It offers a more modern and modular approach compared to @walletconnect/jsonrpc-provider.

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README

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