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Quick Start: MultiversX Apps

'MultiversX' Web3 apps can easily onboard users via social login by integrating with the Arcana Auth SDK!

1. Register & Configure

Follow the instructions in the MultiversX Configuration Guide and register your app, configure social login and chains and obtain a unique Client ID. Then proceed to install the Arcana Auth SDK and use this Client ID to integrate the MultiversX app.

2. Install SDK

Install the auth package.

npm install --save @arcana/auth
yarn add @arcana/auth
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Use latest SDK

Use the latest Arcana Auth SDK release: v1.0.10. Migrate from Arcana Auth SDK v1.0.9 -> v1.0.10.

Versions older than Arcana Auth SDK v1.0.9 may encounter potential breaking changes that require app reconfiguration, integration code updates, and redeployment. Refer to the Migration Guides and Release Notes.

3. Integrate

Import AuthProvider from the auth package.

const { AuthProvider } = window.arcana.auth // From CDN
import { AuthProvider } from '@arcana/auth' //From npm

Create a new AuthProvider and specify the unique Client ID obtained earlier during app registration.

const auth = new AuthProvider(
  "xar_test_445007f942xxxxxxxxxxxxxxxxxx484cAfd2", // App client ID
    position: 'left',         // default: right
    theme: 'light',           // default: dark
    alwaysVisible: false,     // default: true, wallet always visible
    setWindowProvider: true,  // default: false, window.ethereum not set
    connectOptions: {
      compact: true           // default: false, regular plug-and-play login UI
    chainConfig: {
      chainId: '137',                    // defaults to Ethereum
      rpcUrl: '', // defaults to ''

Initialize the newly instantiated AuthProvider.

try {
  await auth.init()
} catch (e) {
  // Handle exception case

Initialize First!

The app must use await until the init() call is complete, before invoking any of the other Arcana Auth SDK functions.

AuthProvider Optional Parameters

You can optionally customize the following settings in the AuthProvider constructor:

alwaysVisible: Arcana wallet visibility mode - always visible in the app context or only if a blockchain transaction is triggered by the app

chainConfig: use chainId to specify the chain identifier for the active chain in the wallet and rpcUrl for specifying the RPC Url for that chain identifier

position: wallet position within the app context - left|right

theme: wallet theme - light|dark

setWindowProvider: set window.ethereum in the app context with the standard EIP-1193 Ethereum provider value

connectOptions: built-in login UI compact mode - true|false

See AuthProvider constructor parameters for details.

After initializing the AuthProvider, you can call any of its exported functions. See Arcana Auth SDK Reference Guide for details.

Onboard Users

The built-in, plug-and-play login UI is enabled by default. To use it, just add a single line of code in the app, call the connect function of the AuthProvider.

await auth.connect();

This will bring up the login modal displaying the onboarding options configured for the app in addition to the passwordless option.

Plug-and-Play Login UI
Plug-and-Play Login UI

Compact Login UI

You can choose to use a compact form of the built-in login UI modal instead of the regular one.

Login UI Options
Login UI Options

No plug-and-play support for Firebase authentication.

The plug and play feature of the Arcana Auth product is not supported for Firebase. Developers must build a custom login UI and add code to onboard users. For details, see onboarding users via Firebase and custom login UI

Custom Login UI

You can onboard users through a custom login UI instead of the built-in plug-and-play one. See how to use custom login UI for onboarding users in a 'MultiversX' app for details.

Instead of the built-in login UI offered by the Arcana Auth SDK, developers can also onboard users via a custom login UI in a 'MultiversX' app.

Arcana JWT Token

Upon successful authentication, Arcana Auth SDK returns a unique JWT token to the app called the Arcana JWT Token. App developers can use this token to verify user login and subsequently generate another token for app use. Learn more about how to verify the Arcana JWT Token for apps deployed on Testnet and Mainnet.

Next, add code to enable Web3 operations in the app through the Arcana wallet.

Sign Transactions

Add code to enable Web3 wallet operations in the MultiversX app. For details, see how to issue Web3 wallet operations in a MultiversX app.

Manage the user experience for signing blockchain transactions by selecting the default, built-in Arcana wallet UI and tinkering with the wallet visibility or replacing the built-in wallet with a custom wallet UI.

4. Deploy App

Finally, deploy the app on Testnet (default). For Mainnet deployment, see Testnet > Mainnet Migration Guide.

That's all!

Your 'MultiversX' app is now powered by Arcana Auth. Authenticated users can instantly access the Arcana wallet within the app context and start signing blockchain transactions on MultiversX.

See Also

Arcana Auth SDK Quicklinks

MultiversX Demo

Last update: April 11, 2024 by shaloo