react-oidc-context

Lightweight auth library using the oidc-client-ts 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 library. Its configuration is tight coupled to that library.

• 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.

Installation

Using npm

npm install oidc-client-ts react-oidc-context --save

Getting Started

Configure the library by wrapping your application in AuthProvider:

// src/index.jsx
import React from "react";
import ReactDOM from "react-dom";
import { AuthProvider } from "react-oidc-context";
import App from "./App";

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

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

Use the useAuth 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 { useAuth } from "react-oidc-context";

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

    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={auth.removeUser}>Log out</button>
        </div>
        );
    }

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

export default App;

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-context";

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 "react-oidc-context";

const Posts = () => {
    const auth = useAuth();
    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 { useAuth } from "react-oidc-context";

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

    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={auth.signinRedirect}>Log in</button>;
}

export default App;

Contributing

We appreciate feedback and contribution to this repo!

Influences

This library is inspired by oidc-react, which lacks error handling and auth0-react, which is focused on auth0.

License

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