This document explains how to integrate the Authentication directly from your React application through our Javascript component to verify your users. This stage might be at the signup page of your application, or at a later point to enrich the profiles of your users. The guide assumes the preliminary steps have already been completed as explained in the initial setup section of the documentation.

We suggest you follow our best practice how to integrate Passbase in your wider system in the overview section.

Install the NPM Package

Start by installing our component and its dependencies in your React project:

$ npm i --save @passbase/button@v3 react-dom styled-components

$ yarn add @passbase/button react-dom styled-components

Render the Component

Import the React component from the newly installed NPM package. The package supports UMD modules, the ES import method is presented below.

src/App.js
import VerifyButton from "@passbase/button/react";

In order for the button to render correctly, you'll need to pass your previously generated apiKey as argument to the rendering function. Optionally you can also pass in handler functions like onFinish, onStart and onError to control the states of the button flow.

src/App.js
function App() {
  return (
    <div className="App">
      <VerifyButton
        apiKey={"YOUR_API_KEY"}
        onFinish={(identityAccessKey) => {}}
        onError={(errorCode) => {}}
        onStart={() => {}}
      />;
    </div>
  );
}

The button should now render as shown here:

Speed Up the Verification Flow

During the verification flow, your users will be asked to provide some information which you might already possess in your application. In this case, you should provide a prefillAttributes object containing the following information:

<VerifyButton
  apiKey={"YOUR_API_KEY"}
  onFinish={(identityAccessKey) => {}}
  prefillAttributes={{
    email: "user@email.de",
    country: "de"
  }}
/>

Customize the Aspect of the iframe

Our component currently supports a set of customization options which will influence the appearance of the modal. The feature set is bound to grow in the future, subscribe to our newsletter to receive immediate updates upon release.

<VerifyButton
  apiKey={"YOUR_API_KEY"}
  onFinish={(identityAccessKey) => {}}
  theme={{
      accentColor: "#27ae60",
      font: "Oswald",
      fontURL: "https://fonts.googleapis.com/css2?family=Oswald:wght@200;300;400;500;600;700&display=swap",
      buttonColor: "#2980b9"
  }}
/>

The configuration above would have the following result:

The modal also supports a darkMode attribute, which supersedes the effects of any other theme attribute

<VerifyButton
  apiKey={"YOUR_API_KEY"}
  onFinish={(identityAccessKey) => {}}
  theme={{
      darkMode: true,
      systemDarkMode: true
  }}
/>;

Reference Your Users

In order for your application to interoperate with Passbase, you need to add a reference to your users once the Authentication is completed.

For that you need keep track of the identityAccessKey returned by the onFinish callback and associate it in your backend with your users' id.

const userId = "SOME_USER_ID"
​
const onFinish = (identityAccessKey) => {
  fetch(
    '/new_authentication', // You have to provide a similar endpoint in your app
    {
      method: 'POST',
      headers: {
        'Content-Type': 'application/json',
      },
      body: JSON.stringify({
        'identity_access_key': identityAccessKey,
        'user_id': userId
      })
    }
  )
}
​
return <VerifyButton apiKey={apiKey} onFinish={onFinish}/>

Wrap-up & Example

If you've followed this integration guide closely and you've chosen to fully customize your Passbase button, your code should resemble this code snippet:

import React from 'react';
import VerifyButton from "@passbase/button/react";
​
function App() {
  return (
    <div className="App">
      <VerifyButton
        apiKey={"YOUR_PUBLISHABLE_API_KEY"}
        onFinish={(identityAccessKey) => {}}
        onError={(errorCode) => {}}
        onStart={() => {}}
        prefillAttributes={{
          email: "hans.meier@corp.de",
          country: "de"
        }}
        theme={{
          accentColor: "#27ae60",
          font: "Oswald",
          fontURL: "https://fonts.googleapis.com/css2?family=Oswald:wght@200;300;400;500;600;700&display=swap",
          buttonColor: "#2980b9"
        }}
      />
    </div>
  );
}
​
export default App;

You can find this code inside a fully working React application in our Github repositories.​