Correct way to send tokens and authenticate in React and Redux

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Follow me on GitHub at https://github.com/cornflourblue,For example the login() action creator performs the following steps:,Follow me on Twitter at https://twitter.com/jason_watmore

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ReactAdding authentication to your React Flux app,Auth0 DocsImplement Authentication in Minutes,We're using computed property syntax in our action functions here. Notice that we set authenticated to true for the call to the protected endpoint.

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A JWT is a JSON (JavaScript Object Notation) Web Token, which is most commonly used as a response to a successful authentication with a third party provider using OAuth 2.0. There are three parts to a JWT:,And if you’ve done much work with web apps, you also probably know how hard it can be to deal with user authentication - storing usernames and passwords safely and securely is tough to do right. Using a third party you trust for authentication means you can rely on their backbone to make sure your app is secure. When a user authenticates with someone else, your app receives a JSON Web Token (JWT) that makes it really easy to know who someone is and verify their claims without any of the hassles that normally come with storing user information.,The useMemo hook makes it so that if there are multiple renders of the component, the search will only be done once. Searching can be a relatively expensive operation, especially as the dataset grows in size.

curl - o - https: //raw.githubusercontent.com/nvm-sh/nvm/v0.34.0/install.sh | bash
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Overview of React Redux JWT Authentication example,Form data will be validated by front-end before being sent to back-end.,We will build a React application in that:

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And there you have it — you have functioning authorization!,Note here that we are reusing the loginUser action in order to save our user object to our state.,Note: This tutorial is mostly intended for Mod 5 students of Flatiron School’s Software Engineering Bootcamp who have implemented JWT Authentication to their Rails API backend but are unsure of how to have their client-side React+Redux App handle authentication.

Note the two separate functions: userPostFetch and loginUser. The function userPostFetch sends the user’s info to your backend to be verified. Upon success, it is expecting a response of a JSON object that looks like this:

{
   user: {
      username: "ImANewUser",
      avatar: "https://robohash.org/imanewuser.png",
      bio: "A new user to the app."
   },
   token: "aaaaaaa.bbbbbbbb.ccccccc"
}
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JSON Web Token (JWT) is a way to generate auth tokens. It’s is an open standard (RFC 7519) that defines a simple way for securely transmitting information between client and server as a JSON object.,Since HTTP is a stateless protocol, after you login (via username/password, OAuth 2 etc), for every future request to the server, you need to keep telling the server that you have already logged in so it can allow you to perform authenticated/authorized actions. One way to do this is via “session”…

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We also have methods that handle asynchronous requests. Inside of those methods, we make fetch calls and from the data that’s sent back, we call a dispatch with the appropriate action object and the data that came back (if necessary) as arguments.,Another dispatch is called within the function taking in the object returned from the setUser action creator. That object is sent to the Store and communicates with the reducers transforming the user information of state.,Provider is going to allow us to provide the Redux Store (which will contain the state) to all of the components that make up our application, meaning that the Store doesn’t have to be manually passed around. Instead, individual components that want to access the Store can just access it.

Let’s generate a React application with Create React App. In the terminal, run:

npx create - react - app jwt - react - redux

Change the directory to jwt-react-redux, and open it. From the directory, run the following to install Redux, React Redux, and Redux Thunk.

npm install redux react - redux redux - thunk
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Are you currently working on JWT authentication in React and Redux App? Don’t you know how to handle it? In this article we will cover a sign in process step by step.,It’s the high time to start working on authentication. So now, we are going to:,To start with our application, first let’s begin by initializing React, Redux, and React Router.

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