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React Projects

React Projects

By : Roy Derks
3.3 (10)
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React Projects

React Projects

3.3 (10)
By: Roy Derks

Overview of this book

Developed by Facebook, React is a popular library for building impressive user interfaces. React extends its capabilities to mobile platforms using the React Native framework and integrates with popular web and mobile tools to build scalable applications. React Projects is your guide to learning React development by using modern development patterns and integrating React with powerful web tools, such as GraphQL, Expo, and React 360. You'll start building a real-world project right from the first chapter and get hands-on with developing scalable applications as you advance to building more complex projects. Throughout the book, you'll use the latest versions of React and React Native to explore features such as routing, Context, and Hooks on multiple platforms, which will help you build full-stack web and mobile applications efficiently. Finally, you'll get to grips with unit testing with Jest and end-to-end testing with Cypress to build test-driven apps. By the end of this React book, you'll have developed the skills necessary to start building scalable React apps across web and mobile platforms.
Table of Contents (12 chapters)
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Mutating data in the Provider

Not only can you retrieve data using this Flux pattern, but you can also use it to update data. The pattern remains the same: you dispatch an action that would trigger the request to the server and, based on the outcome, the reducer will mutate the data with this result. Depending on whether or not it was successful, you could display a success message or an error message.

The code already has a form for adding a new item to a list—something that is not working yet. Let's create the mechanism to add items by updating the Provider for items:

  1. The first step is to add new actions to the reducer in ItemsContext, which will be dispatched once we try to add a new item:
      // ... 
      const reducer = (state, action) => {
        switch (action.type) {
          // ...   
    +     case 'ADD_ITEM_SUCCESS':
    +    ...
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