Unlocking the Power of State Management: Using Jotai with Tanstack Query and KindeAuth JWT in atomWithQuery

In today’s fast-paced world of web development, managing state and handling authentication can be a daunting task. This is where Jotai, Tanstack Query, and KindeAuth JWT come to the rescue! In this article, we’ll dive into the world of state management and explore how to use these powerful tools in conjunction with each other to create a seamless and secure user experience.

What is Jotai?

Jotai is a popular state management library for React applications. It provides a simple and intuitive way to manage global state by using atoms, which are essentially reactive primitives that hold a value. Atoms can be used to create a single source of truth for your application’s state, making it easy to access and update state across different components.

What is Tanstack Query?

Tanstack Query is a data fetching and caching library for React applications. It provides a robust and efficient way to handle data fetching, caching, and deduplication, making it an essential tool for building fast and scalable applications. Tanstack Query is particularly useful when combined with Jotai, as it allows you to manage state and data fetching in a single, unified way.

What is KindeAuth JWT?

KindeAuth JWT is a JSON Web Token (JWT) authentication library for React applications. It provides a simple and secure way to handle authentication and authorization, using JWT tokens to verify user identity. By combining KindeAuth JWT with Jotai and Tanstack Query, you can create a secure and authenticated state management system.

Using Jotai with Tanstack Query and KindeAuth JWT in atomWithQuery

Now that we’ve covered the basics of each library, let’s dive into the main event: using Jotai with Tanstack Query and KindeAuth JWT in atomWithQuery!

Step 1: Setting Up the Project

First, create a new React project using your favorite toolchain. Next, install the required dependencies:

npm install jotai tanstack-query kindle-auth-jwt

Create a new file called `atoms.js` and add the following code:

import { atom } from "jotai";

export const userAtom = atom({
  key: "user",
  default: null,
});

export const tokenAtom = atom({
  key: "token",
  default: null,
});

This code sets up two atoms: `userAtom` and `tokenAtom`. The `userAtom` will store the current user’s data, while the `tokenAtom` will store the JWT token.

Step 2: Setting Up Tanstack Query

Create a new file called `query.js` and add the following code:

import { QueryClient, QueryClientProvider } from "tanstack-query";
import { userAtom, tokenAtom } from "./atoms";

const queryClient = new QueryClient({
  defaultOptions: {
    queries: {
      cacheTime: 10000,
    },
  },
});

export function useUserQuery() {
  return useQuery(["user"], async () => {
    const token = await getToken();
    const response = await fetch("/api/user", {
      headers: {
        Authorization: `Bearer ${token}`,
      },
    });
    return response.json();
  });
}

export function useLoginMutation() {
  return useMutation(["login"], async (variables) => {
    const response = await fetch("/api/login", {
      method: "POST",
      headers: {
        "Content-Type": "application/json",
      },
      body: JSON.stringify(variables),
    });
    const token = await response.json();
    setToken(token);
    return token;
  });
}

export function useLogoutMutation() {
  return useMutation(["logout"], async () => {
    setToken(null);
  });
}

function getToken() {
  return tokenAtom.get();
}

function setToken(token) {
  tokenAtom.set(token);
}

export default queryClient;

This code sets up a Tanstack Query client and defines three hooks: `useUserQuery`, `useLoginMutation`, and `useLogoutMutation`. These hooks will be used to fetch user data, login, and logout, respectively.

Step 3: Setting Up KindeAuth JWT

Create a new file called `auth.js` and add the following code:

import { useAtom } from "jotai";
import { tokenAtom } from "./atoms";

export function useAuth() {
  const [token, setToken] = useAtom(tokenAtom);

  const login = async (variables) => {
    const response = await fetch("/api/login", {
      method: "POST",
      headers: {
        "Content-Type": "application/json",
      },
      body: JSON.stringify(variables),
    });
    const token = await response.json();
    setToken(token);
  };

  const logout = async () => {
    setToken(null);
  };

  return { token, login, logout };
}

This code sets up a simple authentication system using KindeAuth JWT. The `useAuth` hook returns an object with three properties: `token`, `login`, and `logout`. The `token` property returns the current JWT token, while the `login` and `logout` properties are functions that handle login and logout, respectively.

Step 4: Putting it all Together

Finally, let’s create a new file called `App.js` and add the following code:

import React from "react";
import { QueryClientProvider } from "tanstack-query";
import { useAuth } from "./auth";
import { useUserQuery } from "./query";
import { useAtom } from "jotai";
import { userAtom } from "./atoms";

function App() {
  const { token, login, logout } = useAuth();
  const { data, error, isLoading } = useUserQuery();
  const [user, setUser] = useAtom(userAtom);

  if (isLoading) {
    return 
Loading...
;
  }

  if (error) {
    return 
Error: {error.message}
;
  }

  if (!token) {
    return (
      

        
        
 {
            event.preventDefault();
            login({ username: "john", password: "doe" });
          }}
        >
          
            Username:
            
          
          

          
            Password:
            
          
          

          Login
        
      
    );
  }

  return (
    

      
      Logout
      

        

          

            
Name
            
Email
          
        
        

          

            
{user.name}
            
{user.email}
          
        
      
    
  );
}

export default function AppContainer() {
  return (
    
      
    
  );
}

This code sets up a simple React application that uses Jotai, Tanstack Query, and KindeAuth JWT to manage state and handle authentication. The `App` component uses the `useAuth` hook to get the current JWT token and handle login and logout. It also uses the `useUserQuery` hook to fetch user data and the `useAtom` hook to get and set the user’s data.

Conclusion

In this article, we’ve explored the world of state management and authentication in React applications. We’ve learned how to use Jotai to manage global state, Tanstack Query to handle data fetching and caching, and KindeAuth JWT to handle authentication and authorization. By combining these powerful tools, we can create fast, scalable, and secure applications that provide a seamless user experience.

• Key Takeaways:
  1. Jotai is a state management library that provides a simple and intuitive way to manage global state.
  2. Tanstack Query is a data fetching and caching library that provides a robust and efficient way to handle data fetching and caching.
  3. KindeAuth JWT is an authentication library that provides a simple and secure way to handle authentication and authorization.
  4. By combining Jotai, Tanstack Query, and KindeAuth JWT, we can create fast, scalable, and secure applications that provide a seamless user experience.

We hope you’ve enjoyed this article and learned something new! Remember to always keep learning and experimenting with new technologies to stay ahead of the curve.

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