@cognite/react-auth-wrapper

react-auth-wrapper

Lightweight auth library using the react-oidc-context library for React single page applications (SPA). Support for hooks and higher-order components (HOC).

Table of Contents

• Documentation
• Installation
• Getting Started
• Contributing
• Influences
• License

Documentation

This library implements an auth context provider by making use of the oidc-client-ts and react-oidc-context libraries. Its configuration is tight coupled to that library.

• react-oidc-context
• oidc-client-ts

The User and UserManager is hold in this context, which is accessible from the React application. Additionally it intercepts the auth redirects by looking at the query/fragment parameters and acts accordingly. You still need to setup a redirect uri, which must point to your application, but you do not need to create that route.

To renew the access token, the automatic silent renew feature of oidc-client-ts can be used.

Installation

Using npm

npm install @cognite/react-auth-wrapper --save

Getting Started

Configure the library by wrapping your application in ReactCogniteAuthProvider:

// src/index.jsx
import React from "react";
import ReactDOM from "react-dom";
import { ReactCogniteAuthProvider } from "@cognite/react-auth-wrapper";
import App from "./App";

const oidcConfig = {
  authority: "<your authority>",
  client_id: "<your client id>",
  redirect_uri: "<your redirect uri>",
  // ...
};

ReactDOM.render(
  <ReactCogniteAuthProvider {...oidcConfig}>
    <App />
  </ReactCogniteAuthProvider>,
  document.getElementById("app")
);

Use the useCogAuth hook in your components to access authentication state (isLoading, isAuthenticated and user) and authentication methods (signinRedirect, removeUser and signOutRedirect):

// src/App.jsx
import React from "react";
import { useCogAuth } from "@cognite/react-auth-wrapper";

function App() {
  const auth = useCogAuth();

  switch (auth.activeNavigator) {
    case "signinSilent":
      return <div>Signing you in...</div>;
    case "signoutRedirect":
      return <div>Signing you out...</div>;
  }

  if (auth.isLoading) {
    return <div>Loading...</div>;
  }

  if (auth.error) {
    return <div>Oops... {auth.error.message}</div>;
  }

  if (auth.isAuthenticated) {
    return (
      <div>
        Hello {auth.user?.profile.sub}{" "}
        <button onClick={() => void auth.removeUser()}>Log out</button>
      </div>
    );
  }

  return <button onClick={() => void auth.signinPopup()}>Log in</button>;
}

export default App;

You must provide an implementation of onSigninCallback to oidcConfig to remove the payload from the URL upon successful login. Otherwise if you refresh the page and the payload is still there, signinSilent - which handles renewing your token - won't work.

Integrating with Cognite JS SDK

Here is an example of how to integrate with Cognite JS SDK (notice that you'll need to import @cognite/sdk 7.8.1 or higher in your project).

import { Asset, CogniteClient } from '@cognite/sdk';
import React, { useState } from 'react';
import { useCogAuth } from '@cognite/react-auth-wrapper';
import { ReactAuthWrapperProvider, CogniteProjectService } from '@cognite/react-auth-wrapper';

function ListAssets() {
  const authContext: any = useCogAuth();

  const [posts, setPosts] = useState<Asset[]>([]);

  React.useEffect(() => {
    const cogniteProjectService = new CogniteProjectService();

    (async () => {
      try {
        const projects = await cogniteProjectService.loadFromAuthContext(authContext);

        const cogniteClient = new CogniteClient({
          appId: "Authwrapper SDK samples",
          project: projects[0].projectUrlName,
          baseUrl: "https://api.cognitedata.com",
          authentication: {
            provider: ReactAuthWrapperProvider,
            credentials: {
              method: 'pkce',
              authContext: authContext,
            }
          }
        });

        const response = await cogniteClient.assets.list();
        setPosts(response.items);
      } catch (e) {
        console.error(e);
      }
    })();
  }, [authContext]);

  if (!posts) {
    return <div>Loading...</div>;
  }

  return (
    <>
      <div className="App">
        {posts.map((post, index) => {
          return <li key={index}>Assets here {post.name}</li>;
        })}
      </div>
    </>
  );
}

export default ListAssets;

You can find a complete example here

Use with a Class Component

Use the withAuth higher-order component to add the auth property to class components:

// src/Profile.jsx
import React from "react";
import { withAuth } from "react-oidc-wrapper";

class Profile extends React.Component {
  render() {
    // `this.props.auth` has all the same properties as the `useAuth` hook
    const auth = this.props.auth;
    return <div>Hello {auth.user?.profile.sub}</div>;
  }
}

export default withAuth(Profile);

Call a protected API

As a child of AuthProvider with a user containing an access token:

// src/Posts.jsx
import React from "react";
import { useAuth } from "@cognite/react-auth-wrapper";

const Posts = () => {
  const auth = useCogAuth();
  const [posts, setPosts] = useState(null);

  React.useEffect(() => {
    (async () => {
      try {
        const token = auth.user?.access_token;
        const response = await fetch("https://api.example.com/posts", {
          headers: {
            Authorization: `Bearer ${token}`,
          },
        });
        setPosts(await response.json());
      } catch (e) {
        console.error(e);
      }
    })();
  }, [auth]);

  if (!posts) {
    return <div>Loading...</div>;
  }

  return (
    <ul>
      {posts.map((post, index) => {
        return <li key={index}>{post}</li>;
      })}
    </ul>
  );
};

export default Posts;

As not a child of AuthProvider (e.g. redux slice) when using local storage (WebStorageStateStore) for the user containing an access token:

// src/slice.js
import { User } from "oidc-client-ts";

function getUser() {
  const oidcStorage = localStorage.getItem(
    `oidc.user:<your authority>:<your client id>`
  );
  if (!oidcStorage) {
    return null;
  }

  return User.fromStorageString(oidcStorage);
}

export const getPosts = createAsyncThunk(
  "store/getPosts",
  async () => {
    const user = getUser();
    const token = user?.access_token;
    return fetch("https://api.example.com/posts", {
      headers: {
        Authorization: `Bearer ${token}`,
      },
    });
  }
  // ...
);

Adding event listeners

The underlying UserManagerEvents instance can be imperatively managed with the useAuth hook.

// src/App.jsx
import React from "react";
import { useCogAuth } from "@cognite/react-auth-wrapper";

function App() {
  const auth = useCogAuth();

  React.useEffect(() => {
    // the `return` is important - addAccessTokenExpiring() returns a cleanup function
    return auth.events.addAccessTokenExpiring(() => {
      if (
        alert(
          "You're about to be signed out due to inactivity. Press continue to stay signed in."
        )
      ) {
        auth.signinSilent();
      }
    });
  }, [auth.events, auth.signinSilent]);

  return <button onClick={() => void auth.signinRedirect()}>Log in</button>;
}

export default App;

Contributing

We appreciate feedback and contribution to this repo!

License

This project is licensed under the MIT license. See the LICENSE file for more info.