Which frontend SDK do you use?

supertokens-web-js / mobile

supertokens-auth-react

Frontend Integration

Supported frameworks

for mobile apps

For mobile apps, please see the custom UI section (see left nav bar)

Automatic setup using CLI

Run the following command in your terminal.

npx create-supertokens-app@latest --recipe=emailpassword

Once this is done, you can skip Step (1) and (2) in this section (see left nav bar) and move directly to setting up the SuperTokens core (Step 3).

Or, you can manually integrate SuperTokens by following the steps below.

Manual setup steps below

1) Install

ReactJS

npm i -s supertokens-auth-react

Angular

important

SuperTokens does not provide Angular components for pre built UI, but, there are two ways of implementing SuperTokens in your Angular frontend:

• Load SuperTokens's pre-built React UI components in your Angular app. Continue following the guide for this flow.
• Build your own UI. Click here to learn more.

Start by installing the SuperTokens ReactJS SDK and React:

npm i -s supertokens-auth-react react react-dom

You will also need to update compilerOptions in your tsconfig.json file with the following:

tsconfig.json

"jsx": "react","allowSyntheticDefaultImports": true,

Vue

important

SuperTokens does not provide Vue components for pre built UI, but, there are two ways of implementing SuperTokens in your Vue frontend:

• Load SuperTokens's pre-built React UI components in your Vue app. Continue following the guide for this flow.
• Build your own UI. Click here to learn more.

Start by installing the SuperTokens ReactJS SDK and React:

npm i -s supertokens-auth-react react react-dom

2) Call the init function

ReactJS

In your App.js file, import SuperTokens and call the init function

import React from 'react';
import SuperTokens, { SuperTokensWrapper } from "supertokens-auth-react";import EmailPassword from "supertokens-auth-react/recipe/emailpassword";import Session from "supertokens-auth-react/recipe/session";
SuperTokens.init({    appInfo: {        // learn more about this on https://supertokens.com/docs/emailpassword/appinfo        appName: "<YOUR_APP_NAME>",        apiDomain: "<YOUR_API_DOMAIN>",        websiteDomain: "<YOUR_WEBSITE_DOMAIN>",        apiBasePath: "/auth",        websiteBasePath: "/auth",    },    recipeList: [        EmailPassword.init(),        Session.init()    ]});

/* Your App */class App extends React.Component {    render() {        return (            <SuperTokensWrapper>                {/*Your app components*/}            </SuperTokensWrapper>        );    }}

Angular

Before we initialize the supertokens-auth-react SDK let's see how we will use it in our Angular app

Architecture

• The supertokens-auth-react SDK is responsible for rendering the login UI, handling authentication flows and session management.
• We could use this SDK for the entire app but it would inflate the bundle size with UI components and dependencies that most of our app won't use.
• That's where the supertokens-web-js SDK comes in. It contains the functions to handle authentication and session management without any of the pre-built UI. In fact, the supertokens-web-js SDK is used internally by the supertokens-auth-react SDK.
• We can now reduce the bundle size and load times for all non-auth-related routes in our app by only initialising the supertokens-auth-react SDK for auth-related routes and use the supertokens-web-js SDK for session management in the rest of our app.

Creating the /auth route

• Use the Angular CLI to generate a new route

  ng generate module auth --route auth --module app.module

• In your auth component folder create a react component supertokensAuthComponent.tsx where we initialize the supertokens-auth-react SDK. This will tell SuperTokens which UI to show when the user visits the login page.

  /app/auth/supertokensAuthComponent.tsx

  import * as React from "react";import * as SuperTokens from "supertokens-auth-react";import * as EmailPassword from "supertokens-auth-react/recipe/emailpassword";import Session from "supertokens-auth-react/recipe/session";
  SuperTokens.init({    appInfo: {        appName: "<YOUR_APP_NAME>",        apiDomain: "<YOUR_API_DOMAIN>",        websiteDomain: "<YOUR_WEBSITE_DOMAIN>",        apiBasePath: "/auth",        websiteBasePath: "/auth"    },    recipeList: [        EmailPassword.init(),        Session.init(),    ],});
  class SuperTokensReactComponent extends React.Component {    override render() {        if (SuperTokens.canHandleRoute()) {            return SuperTokens.getRoutingComponent();        }        return "Route not found";    }}
  export default SuperTokensReactComponent;

• Load superTokensAuthComponent in the auth angular component

  /app/auth/auth.component.ts

  import { AfterViewInit, Component, OnDestroy } from "@angular/core";import * as React from "react";import * as ReactDOM from "react-dom";import SuperTokensReactComponent from "./supertokensAuthComponent.tsx";
  @Component({    selector: "app-auth",    template: '<div [id]="rootId"></div>',})export class AuthComponent implements AfterViewInit, OnDestroy {    title = "angularreactapp";
      public rootId = "rootId";
      // We use the ngAfterViewInit lifecycle hook to render the React component after the Angular component  view gets initialized    ngAfterViewInit() {        ReactDOM.render(React.createElement(SuperTokensReactComponent), document.getElementById(this.rootId));    }
      // We use the ngOnDestroy lifecycle hook to unmount the React component when the Angular wrapper component is destroyed.    ngOnDestroy() {        ReactDOM.unmountComponentAtNode(document.getElementById(this.rootId) as Element);    }}

• Initialize the supertokens-web-js SDK in your angular app's root component. This will provide session management across your entire application.

  /app/app.component.ts

  import { Component } from "@angular/core";
  import * as SuperTokens from "supertokens-web-js";import * as Session from "supertokens-web-js/recipe/session";
  SuperTokens.init({    appInfo: {        appName: "<YOUR_APP_NAME>",        apiDomain: "<YOUR_API_DOMAIN>",    },    recipeList: [Session.init()],});
  @Component({    selector: "app-root",    template: "<router-outlet></router-outlet>",})export class AppComponent {    title = "<YOUR_APP_NAME>";}

Vue

Before we initialize the supertokens-auth-react SDK let's see how we will use it in our Vue app

Architecture

• The supertokens-auth-react SDK is responsible for rendering the login UI, handling authentication flows and session management.
• We could use this SDK for the entire app but it would inflate the bundle size with UI components and dependencies that most of our app won't use.
• That's where the supertokens-web-js SDK comes in. It contains the functions to handle authentication and session management without any of the pre-built UI. In fact, the supertokens-web-js SDK is used internally by the supertokens-auth-react SDK.
• We can now reduce the bundle size and load times for all non-auth-related routes in our app by only initialising the supertokens-auth-react SDK for auth-related routes and use the supertokens-web-js SDK for session management in the rest of our app.

Creating the /auth route

• Create a new file AuthView.vue, this Vue component will be used to render the auth component

• Create a React component Supertokens.tsx where we initialize the supertokens-auth-react SDK. This will tell SuperTokens which UI to show when the user visits the login page.

  /components/Supertokens.tsx

  import * as SuperTokens from "supertokens-auth-react";import * as EmailPassword from "supertokens-auth-react/recipe/emailpassword";import Session from "supertokens-auth-react/recipe/session";
  SuperTokens.init({    appInfo: {        appName: "<YOUR_APP_NAME>",        apiDomain: "<YOUR_API_DOMAIN>",        websiteDomain: "<YOUR_WEBSITE_DOMAIN>",        apiBasePath: "/auth",        websiteBasePath: "/auth"    },    recipeList: [        EmailPassword.init({            useShadowDom: false        }),        Session.init(),    ],});
  function SuperTokensReactComponent(props: any) {   if (SuperTokens.canHandleRoute()) {        return SuperTokens.getRoutingComponent();    }    return "Route not found";}
  export default SuperTokensReactComponent;

• Load SuperTokensReactComponent in the AuthView.vue component

  /views/AuthView.vue

  <script lang="ts">import * as React from "react";import * as ReactDOM from "react-dom";import SuperTokensReactComponent from "../components/Supertokens";export default {    mounted: () => {        ReactDOM.render(            React.createElement(SuperTokensReactComponent as React.FC),            document.getElementById("authId")        );    }};</script>
  <template>    <main>        <div id="authId" />    </main></template>

• Initialize the supertokens-web-js SDK in your Vue app's main.ts file. This will provide session management across your entire application.

  /main.ts

  import { createApp } from "vue";import * as SuperTokens from "supertokens-web-js";import * as Session from "supertokens-web-js/recipe/session";import App from "./App.vue";import router from "./router";
  SuperTokens.init({    appInfo: {        appName: "<YOUR_APP_NAME>",        apiDomain: "<YOUR_API_DOMAIN>",    },    recipeList: [Session.init()],});
  const app = createApp(App);
  app.use(router);
  app.mount("#app");
  

3) Setup Routing to show the login UI

ReactJS

Do you use react-router-dom?

YesNo

Angular

Update your angular router so that all auth related requests load the auth component

/app/app-routing.module.ts

import { NgModule } from "@angular/core";import { RouterModule, Routes } from "@angular/router";
const routes: Routes = [    {        path: "auth",        loadChildren: () => import("./auth/auth.module").then((m) => m.AuthModule),    },
    { path: "**", loadChildren: () => import("./home/home.module").then((m) => m.HomeModule) },];
@NgModule({    imports: [RouterModule.forRoot(routes)],    exports: [RouterModule],})export class AppRoutingModule {}

Vue

Update your Vue router so that all auth related requests load the AuthView component

/router/index.ts

import { createRouter, createWebHistory } from "vue-router";import HomeView from "../views/HomeView.vue";
const router = createRouter({    history: createWebHistory(import.meta.env.BASE_URL),    routes: [        {            path: "/",            name: "home",            component: HomeView,        },        {            path: "/auth*",            name: "auth",            component: () => import("../views/AuthView.vue"),        },    ],});
export default router;

4) View the login UI

You can view the login UI by visiting /auth.

At this stage, you've successfully integrated your website with SuperTokens. The next section will guide you through setting up your backend.