Learn Ionic, Jest and Serverless

Starting from a prebuilt frontend, Jason Lengstorf guides you through the creation of a "Corgi Up-boop App" that uses Netlify Functions and Hasura. You can view [the deployed final product on Netlify](https://egghead-serverless-functions.netlify.app/).

You'll set up the Netlify CLI, and configure a local development environment before writing and deploying functions with a few different use cases.

The first example function bypasses CORS restrictions to retrieve corgi data from an example third-party API.

Next, you'll configure environmental variables to securely communicate with the Unsplash API without exposing private keys to the client.

Serverless functions don't persist data by themselves, so we will use  Hasura to create a GraphQL API for tracking the number of "boops" each corgi receives.

This course is an excellent illustration of the speed of Serverless functions, and how fast you can implement functionality in your web applications.

An all-in-one workflow that combines global deployment, continuous integration, and automatic HTTPS.

netlify

Build a Corgi Up-boop Web App with Netlify Serverless Functions and Hasura

In this collection, we build a minimal flashcard application using React, primarily focusing on function components and the hooks API. To make sure we can understand and maintain existing code, there are also a few lessons toward the end that use class components so you can get familiar with the syntax. We cover important React concepts, and sprinkle in libraries that are pretty standard in the ecosystem like @reach/router, Jest, and React testing library. We start with create-react-app so we can get right into it without worrying about configuring tooling. There's [a separate course for that here](https://egghead.io/courses/modern-javascript-tooling-with-react?af=5mx0ie)

jest

Build a React App with the Hooks API

Theming Ionic applications is a topic that is often left undiscussed. Ionic has a robust API to theme your application so you don't have to settle with the default styles.

This course will show you how Ionic’s theming system works so that your application can have its unique look. It will explore the built-in utilities, which you can leverage directly.

You'll be introduced to the built-in CSS utilities that Ionic provides, Ionics grid system, and Ionic configuration settings to create a custom look and feel to your App.

Ionic is the beautiful, free and open source mobile SDK for developing native and progressive web apps with ease.

ionic

Style and Theme Ionic v3 Applications

In this course we are going to work through properly setting up Enzyme with Jest to test rendered components. This includes the nitty gritty of making our testing environment work with various versions of React. After we get our environment setup ready, we’ll work through the different ways we can render a component within our test pages. With a rendered component we can now test component methods and properties to assert that they are what is intended. 

React is one of the web’s most popular frameworks for building JavaScript applications. 

If you know what you’re doing, React can drastically simplify how you build, use, and maintain code.

Whether you’re a React newbie or you’re ready for advanced techniques, you can level-up with egghead. Explore our in-depth courses, lessons, and community resources to build more powerful applications and crack open your career.

react

Test React Components with Enzyme and Jest

End-to-end testing assures you of a few things: that all the integrated pieces of an application properly function, all those pieces work together as expected, and your tests include and simulate real-user scenarios — something unit and integration tests just don't do.

This course introduces you to two great tools for E2E testing: 

* Puppeteer opens and runs applications in a Chromium browser and performs the actions it's given.
* Jest asserts that the integrated pieces work as expected and that add-on libraries like Faker and pixelmatch take our tests to the next level.

Over 9 lessons, we will create common application features and use Puppeteer and Jest to run different types of tests against them. You'll get practice using these tools to render content, mimic user activity, automate tests, and measure the overall performance of your application.

End to End Testing with Google's Puppeteer and Jest

Building native mobile applications has traditionally been a completely foreign work flow than web development. Recently frameworks, such as Ionic and React Native, have been come out to create a similar web development workflow in a native environment. 

Ionic 2 builds on top of Angular to offer a complete framework for building mobile apps using HTML, CSS, and Javascript that target native mobile and the browser. We’ll work with the RandomUser API to create an employee directory that will let us view user details, update that information, and pass the data back and forth with Ionic 2 routing.

Angular is a development platform for creating applications using modern web standards. Angular includes a wealth of essential features such as mobile gestures, animations, filtering, routing, data binding, security, internationalization, and beautiful UI components. It's extremely modular, lightweight, and easy to learn.

angular

Building apps with Ionic 2

Ionic allows you to build cross platform native applications using Angular. In this course we will convert the Eggly AngularJS application into an Ionic mobile application.

AngularJS is an open-source JavaScript framework, maintained by Google, that assists with running single-page applications. Its goal is to augment web-based applications with model–view–controller (MVC) capability, in an effort to make both development and testing easier.

angularjs

Building an Angular 1.x Ionic Application

Welcome to the *Ionic Quickstart* series where you will learn how to get started with Ionic from the ground up. We will begin with how to install the required dependencies such as Node.js, Android SDKs and even GenyMotion to installing and running Ionic. By the time you finish, you will know how to create, edit and run an Ionic application. If you are on Windows or Mac and not sure where to start with hybrid mobile development, this is a great place to start!

Ionic Quickstart for Windows and Mac

Create a serverless application and deploy it in under thirty minutes!

We'll be using Netlify, Vite, TypeScript, and React in our project. This stack synergizes extremely well for rapidly developing professional-quality applications. 

If you haven't heard of Vite, it's the French word for quick! It's also a build tool that consists of a dev-server and an extremely fast bundler. It makes for a rapid development loop.

As for the rest. Netlify makes hosting fast and easy with serverless functions and continuous deployment. React enables you to quickly create reusable components. And TypeScript helps you write cleaner code that is easier to refactor. 

So get started and learn how to use this stack in your own applications!

Create a TypeScript powered serverless React application

Best practices for building & testing redux applications have changed dramatically over time. This course aims to be a comprehensive and up-to-date resource for those seeking to confidently test their redux apps. Whether you're just getting started or want to improve on your existing testing strategy, there will be something in this course for you.

This first few lessons of this course look at how to add jest to an existing react/redux application that was built on top of [vite](https://vitejs.dev/). We cover basic functionality like using `npm test` vs `npx jest` and generating and using [code coverage](https://jestjs.io/docs/cli#--coverageboolean) to inform our testing strategy.

The next 10 or so lessons cover the specifics of unit testing the redux code in our application. We'll go over how to test reducers, selectors and thunks. As part of this we'll touch on mocking APIs and using [Redux Mock Store](https://github.com/reduxjs/redux-mock-store) as well as running actions through our applications' actual reducers to broaden our test coverage.

In the final part of this course we'll look at how we can test our redux connected react components using the various utilities that come with the [React Testing Library](https://testing-library.com/docs/react-testing-library/intro/). We'll cover simulating various kinds of user input with the [User Event Module](https://testing-library.com/docs/ecosystem-user-event), populating our redux store with test data, using [jest spies](https://jestjs.io/docs/jest-object#jestspyonobject-methodname), how to wait for asynchronous tasks to complete, and several approaches for finding & asserting that visual elements exist on the page.

This course is built on top of content that was created for the [Modern Redux with RTK and TypeScript](https://app.egghead.io/playlists/modern-redux-with-redux-toolkit-rtk-and-typescript-64f243c8) course and I highly recommend you start there if you haven't completed it already. It does expect a *basic* familiarity with react, redux and jest. TypeScript is used in these lessons, but is not a major focus and hopefully won't distract you too much if you prefer plain JavaScript.

No matter your experience level with redux and testing react applications, I'm confident your abilities will level up as you watch this course and follow along with the examples.

Thank you!

Confidently Testing Redux Applications with Jest & TypeScript

Here are all the Egghead.io lessons about testing with Jest! http://facebook.github.io/jest (https://kcd.im/egghead-jest)

Testing JavaScript with Jest

In this lesson, we install the Android Software Development Kit (SDK) and the necessary Android API (Application Interface). This is the code base that allows us to run the Android platform on our PC. We also add a couple environment variables and update our PATH environment variable.

Install Android SDK for Ionic

In this lesson, we learn how to install Ionic and Cordova. We then build an app from scratch using the Ionic CLI and a blank starter template.

Build and Run an Ionic App from Scratch

In this lesson, we learn how to build a sidebar layout using only Ionic directives. Ionic provides some powerful functionality with very few semantics. Here are all the directives we will learn about:
- **ion-side-menus** - A container element for side menu(s) and the main visible content.
- **ion-side-menu-content** - A container for the main visible content, sibling to one or more `ionSideMenu` directives.
- **ion-side-menu** - A container for a side menu, sibling to an `ionSideMenuContent` directive.
- **ion-nav-view** - Used to render templates in your application. Each template 
is part of a state. States are usually mapped to a url, and are defined programatically 
using angular-ui-router (see their docs for reference).
- **ion-view** - A container for view content and any navigational and header bar information. Used as a child of `ionNavView`.
- **ion-nav-bar** - If we have an `ionNavView` directive, we can also create an 
`ionNavBar`, which will create a topbar that updates as the application state changes.
- **ion-nav-buttons** - Use nav buttons to set the buttons on your `ionNavBar` 
from within an `ionView`.
- **ion-content**- Provides an easy to use content area that can be configured 
to use Ionic’s custom Scroll View, or the built in overflow scrolling of the browser.
- **ion-list** - The List is a widely used interface element in almost any mobile app, and can include 
content ranging from basic text all the way to buttons, toggles, icons, and thumbnails.
- **ion-item** - Used to create items inside of an `ionList`.

Build a Sidebar Layout with Ionic

In this lesson, we are going to dig into Ionic lists and make use of some awesome list features that Ionic gives us for free. We are going to learn how to use the following Ionic directives:

- **ion-nav-buttons** - Use nav buttons to set the buttons on your `ionNavBar`.
- **ion-list** - The List is a widely used interface element in almost any mobile app, and can include 
content ranging from basic text all the way to buttons, toggles, icons, and thumbnails.
- **ion-item**- Used to create items inside of an `ionList`.
- **ion-delete-button** - A child of `ionItem`, this element allows a developer to show/hide a delete button within an `ionItem` with ease.
- **ion-reorder-button** - A child of `ionItem`, this element allows a developer to reorder an `ionItem` within a list easily.

Build a Powerful List with Ionic

In this lesson, we are going to turn two forms into Angular directives in preparation for turning them into Ionic modals. This isn’t a complicated step, but it puts us in a better place for creating the modals.

Convert a UI Route into an Angular Directive

In this lesson, we quickly demonstrate how to edit our code and re-run our app. The pertinent piece of the puzzle is knowing where the code for the HTML/Javascript/CSS is. Once we know where that is, editing it and running the app is a cinch!

Edit Your Ionic Application Code

In this lesson, we install Genymotion, which allows us to create virtual Android devices on our PC.  We could use the Android emulators provided by the Android SDK, but on Windows this proves to be problematic. Most Android developers that operate on a PC opt for using Genymotion, not only because it’s faster, but because it provides easy access to testing different native functions of Android devices, such as the camera, microphone, accelerometer, etc. 

Install the Genymotion Android Emulator for Ionic

In this lesson, we install Ionic. With just a couple command prompt commands, we gain access to the powerful Ionic command-line utility, which in turn installs Apache Cordova to aid in connecting our web apps to our mobile device’s native functionality. After this lesson, we will be able to create and run and app.

Ionic Quickstart for Windows: Installing Ionic

In this lesson, we are going to demonstrate how easy it is to copy existing Angular code into an Ionic app. It is literally as simple as removing unnecessary code from the Ionic app and pasting in the guts of our Angular application. Along the way, we will update some dependencies and discover a gotcha for including assets from a CDN.

Convert a Web Application into an Ionic App

In this lesson, we are going to build an Ionic app for the iOS platform, and then emulate iOS on our computer. We are going to cover some important command-line options when emulating an Ionic application. We will then see how these options play a critical role in debugging our applications.