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Metamask: WalletConnect Mobile Wallets with Custom Chains
For you as a developer building applications on the Ethereum blockchain, it is important to control your users’ funds. A popular solution for this is to use WalletConnect mobile wallets, which allow seamless interaction between your app and users’ MetaMask accounts. However, one of the limitations of the standard implementations of WalletConnect is that they do not support custom networks.
In this article, we will explore how Metamask provides a solution to overcome these limitations and allows you to create wallet connections with custom chains.
What is WalletConnect?
WalletConnect is an open-source protocol that enables peer-to-peer interactions between your application and users’ MetaMask accounts. It uses WebSockets for low-latency communication and allows you to create custom wallets that can interact with multiple networks simultaneously.
The Problem: Limited Support for Custom Networks
Standard implementations of WalletConnect are based on Ethereum’s ERC-20 standard, which limits a wallet’s ability to interact with other blockchain networks. This limitation arises from the fact that many popular wallets only support certain network types and do not allow seamless interaction between different chains.
To overcome this limitation, you need a solution that can handle multiple chain interactions. This is where Metamask comes in – an open-source decentralized wallet provider that allows developers to create custom wallet connections to any blockchain network.
Metamask: A Custom Wallet Solution
Metamask is the answer to your prayers! Built-in support for custom chains allows you to create wallet connections that interact with multiple networks at once. Here are some key features of Metamask:
- Support for multi-chain interaction: Metamask allows developers to create wallet connections with any blockchain network, including Ethereum, Binance Smart Chain (BSC), Polygon (MATIC), etc.
- Support for custom chains: Metamask allows you to define your own custom chain configurations and interact with other chains using WalletConnect WebSockets.
- Decentralized and open source: Metamask is a decentralized wallet provider that allows developers to create custom wallets without relying on centralized third-party providers.
Example use case: Creating a custom chain wallet
To illustrate Metamask’s capabilities, let’s consider a sample use case. Suppose you are building an application that allows users to interact with multiple blockchains. You want to provide your users with a seamless experience by creating custom wallet connections with each blockchain. Metamask allows you to define custom chain configurations and interact with other chains using WalletConnect WebSockets.
“`Javascript
// Import Metamask and create a new wallet instance
import { createWallet } from “Metamask”;
const account = await CreateWallet({
account: [‘0x…’],
keyId: ‘a key ID’,
network: “mainnet”,
});
// Define custom chain configurations for each blockchain
const chains = {
mainnet: {
// Configure wallet connection with Ethereum mainnet
URL: “
type: “Ethereum”,
},
bsc: {
// Configure wallet connection with Binance Smart Chain (BSC)
URL: “
type: “bsc”,
},
};
// Interact with custom channels using WebSockets WalletConnect
const account2 = await createWallet({
accounts: [‘0x…’],
keyId: ‘a key ID’,
network: “mainnet”,
});
Account.connect(mainnetwork.channels).then((Account connected) => {
Account2.Connect(chains.bsc).