5 best libraries for making AJAX calls in React

Are you looking to make ajax calls in React?  #react #reactjs #javascript

  • One of the questions many React beginners ask: “What’s the React way to fetch data from the server” or “How should I make AJAX calls in React”?
  • So, in this article I will try to answer this basic question and list down 5 simple libraries for making AJAX calls in React.
  • In the former, official React tutorial, they use jQuery to fetch data from the server.
  • Here is how a simple API call is made, with jQuery: – – P.S. Snippet is from React’s former official tutorial.
  • However, jQuery is a big library with many functionalities – So, it doesn’t make sense to use it just for making API calls (Unless you are already using it for a bunch of other tasks).

I have been working with React for the last two years. One of the questions many React beginners ask: "What’s the React way to fetch data from the ser.
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Creating a chat web app using Express.js, React.js & Socket.io

  • Implementing Send Message functionalityLet’s go back to our Client’s Chat.js Component and add the following functionality to our button:Now let’s create this.sendMessage function:in Constructor add the following:Great.
  • You are now sending the message to the server every time you click ‘Send Message’, and then your message input is cleared so you can write another message.
  • All we have to do now is tell the server to emit the message to everyone who’s socket is connected to our server.In app.js on the server side add the following code:What we are doing here is that we are emiting the info we received from the client (author and…
  • Now all that’s left to do is to catch that emit on the client side and add the message to our messages array.Back in the Chat.js component on the client side add the folloing in the constructor:I will now post how all the files should look like:Chat.jsapp.jsThis function will catch…
  • We already implemented a messages.map functionality so now every time you add a message you should see it in your chat.

In this article I will be creating a chat web app using Express.js, React & Socket.io. I will be using Bootstrap for styling. You will see how the final files should look like in the end. We will now…
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Replacing WebSockets with the Auto-Scaling Firebase Database.

  • A very basic implementation of this object (Which I will refer to as a “packet” moving forward) can be seen below:{ type: “Ping”, sentFrom: “client”}This is a simple “Ping” packet that was sent from the client, which means the server’s database observer should pick it up, but what should this…
  • In order to only get the packets from the client we want we’re going to need their user-id, for this example I’m going to use “abcdefghijklmnop” as the user’s Firebase uid.const ref = packets = .
  • on(“child_added”, handlePacket);This will create an observer for user “abcdefghijklnop” which will listen for all packets “sentFrom” the client.
  • endAt to server so that we make sure that the server and client are listening to each other and not themselves.In the handlePacket function you should immediately remove the packet from the database and then continue using any additional information sent with the packet to handle it appropriately.
  • In this case we’re only sending the type and since this is a simple Ping-Pong example, I’m going to simply respond to the client by writing a packet with the type of “Pong” to the database.function handlePacket(snapshot) { var value = snapshot.val(); // Get the packet data if(!

If you’ve ever created an web (or react-native) application that required live updates to be sent to the client from the server, you’ve probably implemented Web Sockets at some point, and if your…
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Accepting Payments in a React Native App (Part 2) – Reginald Johnson – Medium

2nd in series: #serverless #AWS #lambda #NodeJS app server for making @braintree payments

  • Accepting Payments in a React Native App (Part 2)Building A Server Using Amazon Web ServicesBackgroundThis article is part two of a four part series on integrating a payment system into a React Native mobile application.This is were we are in the movie…The other articles can be found here:Project DiscussionApplication Server using Amazon Web ServicesInitial Version Using Vanilla-JavaScriptReact Component Based VersionThis article describes the Braintree’s data flow involving a client, an application server, and Braintree’s server.
  • It provides a secure easy to set up payment form by sacrificing some flexibility.Application gets client token from our serverServer gets token from Braintree and sends it back to our mobile applicationClient uses that token in order to request a payment form UI element from BraintreeBraintree provides a secure UI component for the mobile application to displayMobile application displays that UI component to the user so that user can input payment information and commit the actual purchase at which point the payment information is sent to BraintreeBraintree then provides a nonce (think of it as an authorization ticket) to the app that basically says “Okay, that user is good to make this purchase.
  • This article focuses on the interations between the client, through the application server, to Braintree, as well as the reverse.Now let’s talk about the pieces that will do all those.DesignBased on Braintree’s overview its pretty obvious that a server is requirement in order to accept payments.
  • The endpoints can be created in AWS API Gateway which will connect to the Lambda function that contains the server logic.This overall design is summarized in the graphic belowLogic flow between client, the application server, and Braintree’s serverImplementationLet’s start with building the Lambda function that will perform the logic portion of the application server.
  • Passing a query string of “action=get-client-token” to the test results in the following output:Output of a successful API Gateway testConclusionI hope this article did an adequate job providing an overview on how to replicate an node.js server with Express using AWS API Gateway and Lambda in order to act as an application server to accept Braintree payments.I will discuss the creating the React Native client in the next article.Reginald Johnson has maintained his passion for coding throughout his 20+ year career as an Officer in the United States Navy.

This article is part two of a four part series on integrating a payment system into a React Native mobile application. This article describes the Braintree’s data flow involving a client, an…
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Isomorphic Javascript — Javascript all the things

  • With the creation of node.js and increasing popularity of single page javascript applications, it’s only natural to want to javascript all the things.
  • Using a single language on the client and server allows for many advantages in today’s world, but there are also some pitfalls that need to be considered.
  • In this talk we will cover:

    • What is isomorphic JavaScript

    • What does server side render of JS look like

    • How is it possible to use the same language and frameworks in client and server side code

    • What benefits can be gained by using a common language and framework.

  • Join us as Jarrod Zywein shows us how to JavaScript ALL THE THINGS.

Iso-who-now? Iso-what-what?
With the creation of node.js and increasing popularity of single page javascript applications, it’s only natural to want to jav
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Server-side Rendering Shootout with Marko, Preact, Rax, React and Vue

Server-side rendering shootout with Marko, Preact, Rax, #ReactJS, and #VueJS:  #JavaScript

  • Virtual DOM will never be the fastest on the server – you just can’t beat strings.
  • Soon after, it was suggested that Preact be added to the benchmark and sobear (the original benchmark author) added it and continued to work on making the benchmark more fair and meaningful.
  • Vue was added to the benchmark and it was pointed out that the benchmark was not running in production mode (using process.env.NODE_ENV = ‘production’ ) and that could skew results.
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  • When compiled for the browser, rendering builds a virtual DOM tree that can be diffed directly with the browser’s DOM (powered by morphdom )- similar to the approaches in these other libraries.

Last week Alibaba announced a React-like library called Rax. Rax is a more lightweight implementation of the React renderer and it’s “universal”. It can run in Node.js, in the browser, and on top of…
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The essential boilerplate to authenticate users on your React-Native app

The essential boilerplate to authenticate users on your #ReactJS Native app:

  • The store.js imports the reducers and creates the Redux store.
  • Revoke the user tokens and transition the user to the Welcome scene.
  • The essential boilerplate to authenticate users on your React-Native app
  • If the access token is properly refreshed, the splash screen is removed and the user gets transitioned directly to the Users scene.
  • POST /users : Create a new user

It’s essential to many apps, and I myself have been wondering how I could provide a secure way for my users to register and authenticate to my apps without third-party strategies. Finding working…
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