Book Image

Enterprise React Development with UmiJS

By : Douglas Alves Venancio
Book Image

Enterprise React Development with UmiJS

By: Douglas Alves Venancio

Overview of this book

UmiJS is the Ant Group's underlying frontend development framework, an open source project for developing enterprise-class frontend applications. In this book, you'll get hands-on with single-page application development using UmiJS. By following practical step-by-step examples, you'll develop essential skills to build and publish your apps and create a modern user experience with responsive interfaces. This book will help you learn the essential features of UmiJS and how to set up and build a project from scratch using React, Less, and TypeScript. You'll study Ant Design, a framework based on solid design concepts that provides a series of React components to accelerate interface development. Along the way, you'll see how to make requests and develop the frontend using simulated data while ensuring that your app has a high level of security and feedback. You'll also discover ways to improve your code quality and readability using formatting tools. By the end of the book, you'll have learned how to use UmiJS to design user interfaces, as well as compile, test, and package your app locally, and deliver your app by deploying it to online services.
Table of Contents (11 chapters)
1
Part 1: Configuring UmiJS and Creating User Interfaces
5
Part 2: Protecting, Testing, and Deploying Web Applications

Handling HTTP error responses

In this section, we'll configure the umi-request library to handle error responses and display visual feedback.

We'll use the errorHandler function, one of the many umi-request library configurations. I recommend you read the documentation available at https://github.com/umijs/umi-request to learn more about other features.

The umi-request library will trigger the errorHandler function every time it receives an HTTP error response, and we will read the response status and show a message to inform the user why the action they tried to execute failed.

Follow these steps to configure the umi-request library:

  1. In the app.tsx file, create a new function and add the request configuration as follows:
    const errorHandler = (error: ResponseError) => {
      const { response } = error;
      let messages = undefined;
      switch (getLocale()) {
        case 'en-US':
        ...