INTMAX WalletSDK

INTMAX WalletSDK is a protocol and SDK for connecting Web Wallets with Dapps.

Overview

This SDK is for dapp and wallet to interact with each other using the INTMAX WalletSDK. For more information on the protocol, See DESIGN.md.

Documentation Links

• SDK API Reference
• INTMAX Wallet Chrome Extension

Demo URL

• Dapp Example
• Wallet Example
• Rainbow Kit Example

Dapp SDK Example

import { ethereumProvider, intmaxDappClient } from "intmax-walletsdk/dapp";

const DEFAULT_WALLET_URL = "YOUR_WALLET_URL" // e.g. "https://intmaxwallet-sdk-wallet.vercel.app/"
const DEFAULT_DAPP_ICON = "YOUR_DAPP_ICON_URL"
const DAPP_METADATA = {
	name: "Dapp Example",
	description: "This is a simple example of how to use the walletSDK dapp client.",
	icons: [DEFAULT_DAPP_ICON],
};

const client = intmaxDappClient({
  wallet: { url: walletUrl, name: "DEMO Wallet", window: { mode: "iframe" } },
  metadata: DAPP_METADATA,
  providers: {
    eip155: ethereumProvider({
      httpRpcUrls: {
        1: "https://mainnet.infura.io/v3",
        137: "https://rpc-mainnet.maticvigil.com",
      },
    }),
  },
});


const ethereum = await client.provider("eip155"); //or client.provider("eip155:1");

// Note: you can switch chain by using wallet_switchEthereumChain method
// ethereum.request({ method: "wallet_switchEthereumChain", params: [{ chainId: "0x89" }] });

const accounts = await ethereum.request({
  method: "eth_requestAccounts",
  params: [],
});
console.log(accounts);

const result = await ethereum.request({
  method: "eth_sign",
  params: [accounts[0], "Hello INTMAX WalletSDK!"],
});
console.log(result);

Dapp SDK with Rainbow Kit Example

import { intmaxwalletsdk } from "intmax-walletsdk/rainbowkit";

...

const wallets = [
	intmaxwalletsdk({
		wallet: {
			url: "https://intmaxwallet-sdk-wallet.vercel.app/",
			name: "IntmaxWalletSDK Demo",
			iconUrl: "https://intmaxwallet-sdk-wallet.vercel.app/vite.svg",
		},
		metadata: {
			name: "Rainbow-Kit Demo",
			description: "Rainbow-Kit Demo",
			icons: ["https://intmaxwallet-sdk-wallet.vercel.app/vite.svg"],
		},
	}),
];

const config = createConfig({
	chains: [mainnet, polygon, optimism, arbitrum],
	transports: {
		[mainnet.id]: http(),
		[polygon.id]: http(),
		[optimism.id]: http(),
		[arbitrum.id]: http(),
	},
	connectors: connectorsForWallets(
		[
			{
				groupName: "IntmaxWalletSDK",
				wallets,
			},
		],
		{ projectId: "N/A", appName: "Rainbow-Kit Example" },
	),
});

...

Wallet SDK

import { intmaxWalletClient } from "intmax-walletsdk/wallet";

const sdk = intmaxWalletClient();

sdk.on("intmax/intmax_ready", (c) => {
	return c.success({
		supportedNamespaces: ["eip155", "intmax"],
		supportedChains: supportedChains,
	});
});

sdk.on("eip155/eth_requestAccounts", (c) => {
    return c.success({
        accounts: ["0x1234..."],
    });
});

...other methods

sdk.ready();

INTMAX WalletSDK Protocol Proposal

See DESIGN.md