Arcana Auth

Arcana SDK to perform logins on your app.

Installation

Using NPM/Yarn

npm install --save @arcana/auth
yarn add @arcana/auth

Using CDN

<script src="https://cdn.jsdelivr.net/npm/@arcana/auth"></script>

<script src="https://unpkg.com/@arcana/auth"></script>

Usage

Import

const { AuthProvider, SocialLoginType } = window.arcana.auth;
// or
import { AuthProvider } from '@arcana/auth';

Initialise

const auth = await AuthProvider.init({
   appId: `${appId}`,
   flow: 'redirect', /* can be 'popup' or 'redirect' */
   redirectUri:''    /* can be ignored for redirect flow if same as login page */
});

Initiate social login

await auth.loginWithSocial(SocialLoginType.google);

Initiate passwordless login

const result = await auth.loginWithOtp(`${emailAddress}`, PasswordlessOptions);

PasswordlessOptions:

• { withUI: true } - the user is redirected to email-sent or error page
• { withUI: false } - gets a json response back with no redirection
• defaults to { withUI: true }

Get login status

const loggedIn = auth.isLoggedIn(); /* boolean response */

The user info is saved in memory after successful login, before unload event of the page it gets stored in session-storage and is refetched to memory and removed from session-storage after successful page reload.

Get user info

const userInfo = auth.getUserInfo();
/* 
  UserInfo: {
    loginType: 'google',
    userInfo: {
      id: '[email protected]',
      name: 'ABC DEF',
      email: '',
      picture: ''
    },
    privateKey: ''
  }
*/

Get public key

const publicKey = await auth.getPublicKey({
  verifier: SocialLoginType.google,
  id: `${email}`,
}, PublickeyOutput); 

PublickeyOutput:

• value can be 'point', 'compressed' or 'uncompressed'
• point output will be an object with { x: string, y: string }
• compressed output will be a string like 0x03...
• uncompressed output will be a string like 0x04...
• defaults to uncompressed

Clear login session

await auth.logout();

Typescript Usage

Exported enums

enum PublicKeyOutput {
  point = 'point',
  compressed = 'compressed',
  uncompressed = 'uncompressed',
}

enum SocialLoginType {
  google = 'google',
  discord = 'discord',
  twitch = 'twitch',
  github = 'github',
  twitter = 'twitter',
  passwordless = 'passwordless',
}

Exported types

interface KeystoreInput {
  id: string;
  verifier: LoginType;
}

interface InitParams {
  appId: string;
  network?: 'dev' | 'testnet'; /* defaults to testnet  */
  flow?: 'popup' | 'redirect'; /* defaults to redirect */
  debug?: boolean;             /* defaults to false    */
}

interface GetInfoOutput {
  loginType: SocialLoginType;
  userInfo: UserInfo {
    id: string;
    email?: string;
    name?: string;
    picture?: string;
  };
  privateKey: string;
}

interface PasswordlessOptions {
  withUI?: boolean;
}

Flow modes

Redirect

login.js

window.onload = async () => {
  const auth = await AuthProvider.init({
    appId: `${appId}`,
    flow: 'redirect',
    redirectUri:'path/to/redirect' 
  });

  googleLoginBtn.addEventListener('click', async () => {
    await auth.loginWithSocial(SocialLoginType.google);
  });
}

redirect.js

window.onload = async () => {
  const auth = await AuthProvider.init({
    appId: `${appId}`,
    flow: 'redirect',
    redirectUri:'path/to/redirect' 
  });

  
  if(auth.isLoggedIn()) {
    const info = auth.getUserInfo();
  }
}

• Skip redirectUri in params if the it is same as login page. For example:

  index.js

  window.onload = async () => {
    const auth = await AuthProvider.init({
      appId: `${appId}`,
      flow: 'redirect',
    });
  
    if(auth.isLoggedIn()) {
      /* already logged in, get user info and use */
      const info = auth.getUserInfo();
    } else {
      /* add handler to handle login function */
      googleLoginBtn.addEventListener('click', async () => {
        await auth.loginWithSocial(SocialLoginType.google);
      });
    }
  }

Popup

login.js

window.onload = async () => {
  const auth = await AuthProvider.init({
    appId: `${appId}`,
    redirectUri:'path/to/redirect' 
  });

  googleLoginBtn.addEventListener('click', async () => {
    await auth.loginWithSocial(SocialLoginType.google);
    if(auth.isLoggedIn()) {
      const info = auth.getUserInfo();
      // Store info and redirect accordingly
    }
  });
}

redirect.js

window.onload = async () => {
  AuthProvider.handleRedirectPage(<origin>);
};

Variables

• origin - Base url of your app.