Rainbow Button 🌈

Rainbow Button is a react component that renders an opinionated button built on top of WalletConnect v1 which allows you to connect to Rainbow on mobile (via Mobile Deeplinking) and desktop (via QR codes).

Demo Dapp

Demo Link

Install

yarn add @rainbow-me/rainbow-button

Required peerDependencies:

The following packages also need to be installed along side @rainbow/rainbow-button.

• @walletconnect/client@>=1.6.0
• react@>=16

How to use

import React from 'react';
import ReactDOM from 'react-dom';
import { RainbowButton } from '@rainbow-me/rainbow-button';

ReactDOM.render(
  <RainbowButton
    chainId={1}
    connectorOptions={{ bridge: 'https://bridge.walletconnect.org' }}
    onConnectorInitialized={(connector) => console.log(connector)}
  />,
  document.getElementById('rainbowButton')
);

Rainbow button without styling or custom button

ReactDOM.render(
  <RainbowButton
    chainId={1}
    connectorOptions={{ bridge: 'https://bridge.walletconnect.org' }}
    onConnectorInitialized={(connector) => console.log(connector)}
    render={() => <button>Custom Rainbow button</button>}
  />,
  document.getElementById('rainbowButton')
);

RainbowButton Props

params	value	default value	description
chainId	number	REQUIRED	Rainbow supported chainId
connectorOptions	object	REQUIRED	Wallet Connect connector options. bridge param is required
onConnectorInitialized	function	REQUIRED	Will be called when the button is instantiated, will return the connector object
render	function	-	Render prop to use a custom element
animate	boolean	true	Whether or not animate the button

onConnectorInitialized callback

This callback will return a WalletConnect connector object, you should store it and use it as a normal WalletConnect client object.

Initiate connection and listen to events

const onConnectorInitialized = useCallback(
  (connector) => {
    setConnector(connector);
  },
  [setConnector]
);

// Subscribe to connection events and update your app accordingly

const subscribeToEvents = useCallback(() => {
  connector.on('connect', (error, payload) => {
    if (error) {
      throw error;
    }
    // Get provided accounts and chainId
    const { accounts, chainId } = payload.params[0];
  });

  connector.on('session_update', (error, payload) => {
    if (error) {
      throw error;
    }
    // Get updated accounts and chainId
    const { accounts, chainId } = payload.params[0];
  });

  connector.on('disconnect', (error, payload) => {
    if (error) {
      throw error;
    }
    // Delete connector
    setConnector(null);
  });
}, [connector]);

More details can be found in the Wallet Connect docs:

• Wallet Connect client

Exported assets

import { assets } from '@rainbow-me/rainbow-button';

ReactDOM.render(
  <div>
    <img src={assets.rainbow} tag="rainbow" />
    <img src={assets.rainbow_icon} tag="rainbow icon" />
  </div>,
  document.getElementById('assets')
);

Exported utils

import { utils } from '@rainbow-me/rainbow-button';

// Triggers a deeplink to go to the app. Only mobile.
utils.goToRainbow();

Exported constants

import { constants } from '@rainbow-me/rainbow-button';

console.log('Rainbow supported chain ids', constants.SUPPORTED_MAIN_CHAIN_IDS);
console.log(
  'Rainbow supported test chain ids',
  constants.SUPPORTED_TEST_CHAIN_IDS
);

Dev Server

yarn start

To run and try the example dapp locally open other terminal and run

cd example
yarn start

Default dev server runs at localhost:1234 in browser.

Production Bundle

yarn bundle