Blockchain Infos - bcinfos

bcinfos is a lightweight library that provides information about popular blockchain networks. The library contains data on the following properties for each blockchain network:

• chainId: a unique numerical identifier for the network
• chainIdHex: the hexadecimal representation of the chainId
• name: the name of the blockchain network
• currencyName: the name of the cryptocurrency used on the network
• currencySymbol: the symbol of the cryptocurrency used on the network
• blockExplorerUrl: the URL of the block explorer for the network
• rpcUrl: The URL of the JSON-RPC endpoint for the network (string or null). Note that rpcUrl is initially set to null, but can be updated using the setRpcUrl() function.

All of this data is available through the getChainData() function, which takes a chainId as its only argument and returns an object with the above properties. Additionally, the setRpcUrl() function can be used to update the rpcUrl property of a given chain.

Installation

To install bcinfos, use the following command:

npm install bcinfos

or

yarn add bcinfos

Usage

Importing the library

import { getChainList, getChainData, setRpcUrl } from "bcinfos";

Fetching the list of available chains

const chainList = getChainList();
console.log(chainList);
// [1, 5, 42161, 10, 137, 100, 56, 97, 43114, 43113, 250, 4002, 42220]

Fetching chain getChainData

const chainData = getChainData(1);
console.log(chainData);
/*
{
chainId: 1,
chainIdHex: "0x1",
name: "Ethereum Mainnet",
currencyName: "Ether",
currencySymbol: "ETH",
blockExplorerUrl: "https://etherscan.io",
rpcUrl: null,
}
*/

Setting an RPC URL for a chain

setRpcUrl(1, "https://your-rpc-url");
const chainData = getChainData(1);
console.log(chainData.rpcUrl);
// https://your-rpc-url

If you want to contribute, you can create PR or express your ideas and thoughts with an issue.