Connect to Ronin Wallet using an injected provider (EIP-6963)

Overview

This tutorial shows how to connect your decentralized web app to the Ronin Wallet browser extension using an injected provider. By the end of this tutorial, your app will be able to connect with Ronin Wallet, enabling you to make requests to the connected user's wallet.

An injected provider acts as a bridge between your app and a user's web3-enabled browser, facilitating communication and accessing blockchain data and functionalities.

When a user accesses your app, the injected provider injects a web3 object into the app's JavaScript runtime environment. This web3 object allows the app to interact with the underlying blockchain network. An example of such interaction is managing the user's blockchain accounts. The provider gives access to the user's public and private keys, allowing the app to sign and send transactions on behalf of the user. This integration simplifies the user experience, because users don't need to manually enter their account details for each interaction with the app.

An injected provider is available in the following scenarios:

Users who use a web browser with the Ronin Wallet extension.
Users who use the in-app browser inside the Ronin Wallet mobile app.

Prerequisites

A Next.js app. To set up, see the official documentation.
An address on the Ronin chain. Sign up at wallet.roninchain.com.

Steps

Step 1. Install dependencies

First, install the Sky Mavis Tanto connect package by running the following command in your terminal.

npm
Yarn

npm install @sky-mavis/tanto-connect

yarn add @sky-mavis/tanto-connect

In your preferred code editor, open the page.tsx file, and then add the following imports:

import { 
  ConnectorError,
  ConnectorErrorType,
  requestRoninWalletConnector 
} from '@sky-mavis/tanto-connect';

Step 2. Set up connecting component

Create a new component called ConnectRoninWalletButton that will handle the connection to Ronin Wallet. This component will contain a button that, when clicked, will connect the user's Ronin Wallet to your app.

import { useState } from 'react';
import { 
  ConnectorError,
  ConnectorErrorType,
  requestRoninWalletConnector
} from '@sky-mavis/tanto-connect';

function ConnectRoninWalletButton(props) {
  const [connector, setConnector] = useState(null);
  const [connectedAddress, setConnectedAddress] = useState();

  return <button>Connect Ronin Wallet</button>
}

export default ConnectRoninWalletButton;

Step 3. Detect Ronin Wallet provider

Before interacting with an injected provider, your app must verify the existence of this provider.

If a user already installed Ronin Wallet, a window.ronin object is available for access. If Ronin Wallet is not installed, your app must redirect the user to Ronin Wallet's website for installation.

tanto-connect provides a helper function to request the Ronin Wallet connector, which wraps the ronin injected provider. If the user hasn't installed the Ronin Wallet or if any error occurs, the function will throw a ConnectorError with the PROVIDER_NOT_FOUND error type.

const getRoninWalletConnector = async () => {
  try {
    const connector = await requestRoninWalletConnector();

    return connector;
  } catch (error) {
    if (error instanceof ConnectorError) {
      // Handling the case where the user hasn't installed the Ronin Wallet here
      console.error(error)
    }

    return null;
  }
}; 

To handle the case where the user hasn't installed the Ronin Wallet, we can redirect the user to the Ronin Wallet's website.

if (error.name === ConnectorErrorType.PROVIDER_NOT_FOUND) {
  window.open('https://wallet.roninchain.com', '_blank');
  return;
}

Step 4. Get Ronin Wallet connector when component mounts

We will use a useEffect hook that runs when the component mounts. This hook will call the getRoninWalletConnector function to obtain the Ronin Wallet connector and detect any errors that occur.

import { useEffect, useState } from 'react';
import { 
  ConnectorError,
  ConnectorErrorType,
  requestRoninWalletConnector
} from '@sky-mavis/tanto-connect';

function ConnectRoninWalletButton(props) {
  const [connector, setConnector] = useState(null);
  const [connectedAddress, setConnectedAddress] = useState();
  const [error, setError] = useState(null)

  const getRoninWalletConnector = async () => {
    try {
      const connector = await requestRoninWalletConnector();

      return connector;
    } catch (error) {
    if (error instanceof ConnectorError) {
      setError(error.name)
    }

    return null;
  }; 

  useEffect(() => {
    getRoninWalletConnector().then((connector) => {
      setConnector(connector);
    });
  }, [])

  return <button>Connect Ronin Wallet</button>
}

export default ConnectRoninWalletButton;

Step 5. Prompt user to unlock wallet

If the user's wallet is locked, call connector.connect() to prompt the user to unlock it:

await connector.connect();

In the following example, the function connectRoninWallet is called when the button is clicked. This function will prompt the user to unlock the wallet. If the user unlocks the wallet, the result will contain the user's current address, which will be set in the connectedAddress state.

import { 
  ConnectorError,
  ConnectorErrorType,
  requestRoninWalletConnector
} from '@sky-mavis/tanto-connect';

/*
* Previous code
*/ 

const getRoninWalletConnector = async () => {
  try {
    const connector = await requestRoninWalletConnector();

    return connector;
  } catch (error) {
  if (error instanceof ConnectorError) {
    setError(error.name)
  }

  return null;
}; 

const connectRoninWallet = async () => {
  const connectResult = await connector?.connect();

  if (connectResult) {
    setConnectedAddress(connectResult.account);
  }
}

Step 6. Get all user addresses

After the user unlocks the wallet, use getAccounts to get the user's addresses:

await connector.getAccounts()

Here's the example implementation:

import { 
  ConnectorError,
  ConnectorErrorType,
  requestRoninWalletConnector
} from '@sky-mavis/tanto-connect';

/*
* Previous code
*/ 

const [userAddresses, setUserAddresses] = useState();

const getRoninWalletConnector = async () => {
  try {
    const connector = await requestRoninWalletConnector();

    return connector;
  } catch (error) {
  if (error instanceof ConnectorError) {
    setError(error.name)
  }

  return null;
}; 

const connectRoninWallet = async () => {
  const connectResult = await connector?.connect();

  if (connectResult) {
    setConnectedAddress(connectResult.account);
  }

  const accounts = await connector?.getAccounts();

  if (accounts) {
    setUserAddresses(accounts);
  }
}

Step 7. Switch chain (EIP-3326)

Ronin supports the EIP-3326 standard, which allows users to switch between different chains. To switch between chains, call the switchChain method on the connector object.

await connector.switchChain(chainId);

Here's an example implementation, we will implement a function switchChain that will switch the chain when the user clicks the button. We will also store the current chain id in the state and update it when the user switches the chain, or when the user connects the wallet:

import {
  ChainIds,
  ConnectorError,
  ConnectorErrorType,
  requestRoninWalletConnector,
} from '@sky-mavis/tanto-connect';

/*
* Previous code
*/

const [currentChainId, setCurrentChainId] = useState(null);

const switchChain = async (chainId) => {
  try {
    await connector?.switchChain(chainId);
    setCurrentChainId(chainId);
  } catch (error) {
    console.error(error);
  }
} 

const connectRoninWallet = async () => {
  const connectResult = await connector?.connect();

  if (connectResult) {
    setConnectedAddress(connectResult.account);
    setCurrentChainId(connectResult.chainId);
  }

  const accounts = await connector?.getAccounts();

  if (accounts) {
    setUserAddresses(accounts);
  }
}

Step 8. Implement Ronin Wallet connection

Let's implement a Connect Ronin Wallet button that connects your app with the Ronin Wallet provider and a button that will switch between two chains: Ronin Mainnet and Ronin Testnet. To do this, you need to combine the code from the preceding steps, as shown in the following example.

Here, if the user's wallet is locked, the button requests that they unlock it. After that's done, the user's address is displayed.

You can paste this example into your page.tsx file and run it locally.

'use client'; // Mark this component as client-side only

import { useEffect, useState } from 'react';
import { 
  ChainIds,
  ConnectorError,
  ConnectorErrorType,
  requestRoninWalletConnector
} from '@sky-mavis/tanto-connect';

function ConnectRoninWalletButton(props) {
  const [connector, setConnector] = useState(null);
  const [connectedAddress, setConnectedAddress] = useState();
  const [error, setError] = useState(null);

  const [userAddresses, setUserAddresses] = useState();
  const [currentChainId, setCurrentChainId] = useState(null);

  const switchChain = async (chainId) => {
    try {
      await connector?.switchChain(chainId);
      setCurrentChainId(chainId);
    } catch (error) {
      console.error(error);
    }
  } 

  const getRoninWalletConnector = async () => {
    try {
      const connector = await requestRoninWalletConnector();

      return connector;
    } catch (error) {
      if (error instanceof ConnectorError) {
        setError(error.name)
      }

      return null;
    }
  }; 

  const connectRoninWallet = async () => {
    if (!connector && error === ConnectorErrorType.PROVIDER_NOT_FOUND) {
      window.open('https://wallet.roninchain.com', '_blank');
      return;
    }

    const connectResult = await connector?.connect();

    if (connectResult) {
      setConnectedAddress(connectResult.account);
      setCurrentChainId(connectResult.chainId);
    }

    const accounts = await connector?.getAccounts();

    if (accounts) {
      setUserAddresses(accounts);
    }
  }

  useEffect(() => {
    getRoninWalletConnector().then((connector) => {
      setConnector(connector);
    });
  }, [])

  const formatConnectedChain = (chainId) => {
    switch (chainId) {
      case ChainIds.RoninMainnet:
        return `Ronin Mainnet - ${chainId}`;
      case ChainIds.RoninTestnet:
        return `Saigon Testnet - ${chainId}`;
      case null:
        return 'Unknown Chain';
      default:
        return `Unknown Chain - ${chainId}`;
    }
  }

  return (
    <>
      {connectedAddress && (
        <>
          <button 
            onClick={() => switchChain(currentChainId === ChainIds.RoninMainnet ? ChainIds.RoninTestnet: ChainIds.RoninMainnet)}
          >
            Switch chain
          </button>
          <p>Current Chain: {formatConnectedChain(currentChainId)}</p>
        </>
      )}
      <button onClick={connectRoninWallet}>Connect Ronin Wallet</button>
      {connectedAddress && (
        <p>🎉 Ronin Wallet is connected, current address: {connectedAddress}. All addresses: {userAddresses}</p>
      )}
    </>
  )
}
export default ConnectRoninWalletButton;

Or try it right in the browser by clicking the Connect Ronin Wallet button at the bottom:

Live Editor

function ConnectRoninWalletButton(props) {
  const [connector, setConnector] = useState(null);
  const [connectedAddress, setConnectedAddress] = useState();
  const [error, setError] = useState(null);

  const [userAddresses, setUserAddresses] = useState();
  const [currentChainId, setCurrentChainId] = useState(null);

  const switchChain = async (chainId) => {
    try {
      await connector?.switchChain(chainId);
      setCurrentChainId(chainId);
    } catch (error) {
      console.error(error);
    }
  } 

  const getRoninWalletConnector = async () => {
    try {
      const connector = await requestRoninWalletConnector();

      return connector;
    } catch (error) {
      if (error instanceof ConnectorError) {
        setError(error.name)
      }

      return null;
    }
  }; 

  const connectRoninWallet = async () => {
    if (!connector && error === ConnectorErrorType.PROVIDER_NOT_FOUND) {
      window.open('https://wallet.roninchain.com', '_blank');
      return;
    }

    const connectResult = await connector?.connect();

    if (connectResult) {
      setConnectedAddress(connectResult.account);
      setCurrentChainId(connectResult.chainId);
    }

    const accounts = await connector?.getAccounts();

    if (accounts) {
      setUserAddresses(accounts);
    }
  }

  useEffect(() => {
    getRoninWalletConnector().then((connector) => {
      setConnector(connector);
    });
  }, [])

  const formatConnectedChain = (chainId) => {
    switch (chainId) {
      case ChainIds.RoninMainnet:
        return `Ronin Mainnet - ${chainId}`;
      case ChainIds.RoninTestnet:
        return `Saigon Testnet - ${chainId}`;
      default:
        return `Unknown Chain - ${chainId}`;
    }
  }

  return (
    <>
      {connectedAddress && (
        <>
          <button 
            onClick={() => switchChain(currentChainId === ChainIds.RoninMainnet ? ChainIds.RoninTestnet: ChainIds.RoninMainnet)}
          >
            Switch chain
          </button>
          <p>Current Chain: {formatConnectedChain(currentChainId)}</p>
        </>
      )}
      <button onClick={connectRoninWallet}>Connect Ronin Wallet</button>
      {connectedAddress && (
        <p>🎉 Ronin Wallet is connected, current address: {connectedAddress}. All addresses: {userAddresses}</p>
      )}
    </>
  )
}

Result

Overview​

Prerequisites​

Steps​

Step 1. Install dependencies​

Step 2. Set up connecting component​

Step 3. Detect Ronin Wallet provider​

Step 4. Get Ronin Wallet connector when component mounts​

Step 5. Prompt user to unlock wallet​

Step 6. Get all user addresses​

Step 7. Switch chain (EIP-3326)​

Step 8. Implement Ronin Wallet connection​

See also​