Why is there a need for another framework? the current approach is not producing fast sites, and this problem will not disappear by waiting for a faster CPU.

Foreword

Qwik in Action

Introduction to the frontend development. Now, the responsibility of creating good or bad applications depends on you because the means available are all there.

Introduction

Overview of TypeScript. TypeScript introduced types into an untyped language like Javascript to ensure code consistency.

TypeScript

Overview of the frontend architectures. In this lesson you will understand the difference from Client Side Rendering and Multi Page Application.

Frontend architectures

Overview of the hydration. In this lesson you will understand the difference from Hydration and Island architecture/Partial Hydration.

Hydration

React Server Component. In this lesson you will understand the difference from Server Component and Client Component.

React Server Component

Qwik resumability will change the frontend ecosystem, In this lesson you will understand why is so great.

Resumability, the Qwik way

Wrap up of frontend architectures module.

Summary Chapter 2

In this lesson you will be able to understand more about performance and you will understand how improve your application with less JavaScript.

Qwik, the framework built on top of closure-extraction

Resumability is the core concept behind Qwik. In this lesson you will understand better the process.

Resumability

Code Extraction is a topic hard to master, you will understand how it works with different approaches.

Code Extraction

JSX syntax is the most famous one because of React, but what about the other frameworks, Vue, Angular?

Why Qwik use JSX syntax

Summary Chapter 3

Let's see together the fundamentals of Qwik. In this lesson you will compare Webpack and Vite.

Getting started with Qwik

The Qwik build process is so important because the resumability process requires correct and intelligent bundling.

Qwik compilation Process

Qwik CLI and amazing tool to have a great Developer Experience with Qwik.

Technical requirements to start a new Qwik application

Qwik Middleware an easy and clever way to expose your RESTful APIs or GraphQL APIs.

Middleware

Wrap up of Getting Started with Qwik module.

Summary Chapter 4

In this lesson you will learn the pillars of SEO. You will lean few new terms and metrics that can help you to measure your application.

In this lesson you will learn the some new things about SEO and crawler.

Sitemap and robots files

Partytown an amazing library to execute third scripts in the service worker.

Partytown

Core Web Vitals are so important for own application. You will learn in detail all the metrics.

Core Web Vitals

Core Web Vitals Labs Data vs Field Data. These two information are so different, let's figure out the peculiarity of those.

Labs data vs Field data

Summary Chapter 5

SEO and Core Web Vitals

There are many ways to deploy a Qwik application. You can have your own server and deploy your Qwik application easily with the Qwik CLI and integrations.

Deploy Qwik in production

Cloud solution are a good alternative for a low cost pipeline and host. Nowadays these kind of services are so smart and great, you should try them.

Cloud solutions

With different team and many developers, it's important to master branching strategies to avoid problems during your day by day.

Branching strategies

Progressive Web App approach can be an alternative to the stores. You can publish you application with a lot of benefit with PWA.

Progressive Web App

Wrap up of Deploy Qwik in Production module.

Summary Chapter 6

Style an application is so important let's see how engage your Stakeholders into this process.

Style and render data with Qwik

CSS is so huge, there are a lot of ways to style your application with Qwik, let's see them together.

CSS and Built-In Styling Methods

Tailwind is an amazing library, let's see together how master it. I will share you some tips and tricks to use Tailwind in a better way.

Tailwind CSS

In this lesson you will learn how manage data with Qwik. There are a lot of APIs to explore, let's jump into the code.

Managing data with Qwik

Summary Chapter 7

In this lesson you will learn how architect a modern frontend end application.

Creating an e-commerce with Qwik and Supabase

In this lesson you will learn the trade offs of technical decisions. I share with you some tips and tricks.

Technological spike

In this lesson you will explore Supabase. This is an amazing service to leverage your business.

Supabase for your backend

A custom authentication is too complex and risky to implement from scratch. Let's use the Supabase auth to optimize our goals.

Let's talk about the Authentication process

Summary Chapter 8

Supabase CLI an handy tool to improve consistency across environments.

Supabase CLI

Let's use the Supabase CLI to manage our database migrations and schemas.

Supabase db migrations

In this lesson you will create the e-commerce homepage with the Supabase client to read the data.

Show products on our homepage

Every e-commerce has a detail page, let's create our product detail page with Qwik.

Product Detail

Cache is really useful and in this lesson I will explain in the detail how it works. I will share my experience in this topic with some cool analogies.

Cache-control headers

Summary Chapter 9

Rendering products with Orama full text search

Let's improve out application with a useful "Add to favorites" feature.

Add a product to your favorites list

In this lesson you will learn how to use Stripe to manage your payments in a secure way.

Adding cart and checkout process with Stripe

Let's try the Supabase database function. This is an easy way to allows us to do several things and also add some logic to our procedure.

Page views tracking

A real-time database with Supabase is so simple to implement, let's build together a new functionality with this great feature.

Real-time database

Summary Chapter 10

Let's explore together the benefit of testing. In this lesson you will explore the various types of tests, Unit Test, E2E, Visual regression tests and more.

Overview of application testing

Let's discuss together how and when testing is valuable for our business. 3X Explore/Expand/Extract can help us is this reasoning.

How much testing is enough? When do I write tests?

In this lesson you will lean the Test driven development TDD flow. It's a really good practice to put in place.

Test-Driven Development (TDD)

In this lesson you will lean how test your components with Cypress.

Let's add some tests with Cypress

Do you need a Qwik component library? Qwik UI is the project for you because can give you a lot of Qwik accessible components out of the box.

Qwik UI

Summary Chapter 11

Adding tests to our Qwik application

Let's explore a bit of history of Qwik. A new framework with a great past.

Final thoughts

Qwik and React together, no problem, qwikify$ is the API to solve your problems.

qwikify$

Qwik and Astro together, no problem, @qwikdev/astro is the library to solve your problems.

Qwik inside Astro application

Qwik and micro-frontends together, no problem, out of the box Qwik can manage this scenario with no external dependencies.

Micro-frontends with Qwik

Summary chapter 12

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( the primaryDescriptionMarkdown is long - several lines, include images, as long as you want )

In this course we <headline of what we do>. <why this technology is good> but <here's how learning it is problem>. 

In <the length of these lessons> we cover <three salient points about what we cover. Your BEST points>. Its <however long it is> and comes with <these bonus features, and reasons to buy. code, etc.>

It's taught by <author name> who <credibility, reason you should listen to them>. <social proof, if you have it yet>

<then you can list other supporting stuff you want to add, anything you want here>

-------
Example:
-------

We created a free course to create your first GraphQL server (from scratch) using Node and TypeScript. TypeScript and GraphQL are a powerful combo, but there's a lot of confusing edges if you're getting it setup the first time.

In this course we cover the basics of getting TypeScript setup with Node, how GraphQL works, and how to set up a GraphQL server using Apollo server. It's two hours long, it comes with complete code examples, and we walk through the code step-by-step.

It's taught by my friend, Shopify-engineer Hassan Djirdeh and he's integrated what he's learned using GraphQL in production as an engineer at Shopify. We've already had over 1,300 students enroll and it's been getting great reviews so far.

// ... and so on

Harness Qwik Resumable Architecture for Lightning-Fast Startup Times

In this course we <headline of what we do>. <why this technology is good> but <here's how learning it is problem>. 

( the summary is short - one or two lines )

Complete Guide to Qwik

The integration with React components was created under the name 

 and the use case is soon explained. Let's imagine we have a series of components written in React that we would like to reuse in our application. If we want to use Qwik and use these components it is clear that without this integration it would not be possible. Furthermore, it is also possible to use React libraries such as MaterialUI, and Threejs, in short, we can draw on the vast React ecosystem. This approach can also be used to get the benefits of Qwik without having to rewrite your React application.
This solution is integrated into the Qwik codebase and therefore it is clear that any problems will be followed directly by the Qwik team or by the large community that supports it, in fact, the import of 

 comes directly from a core Qwik package.

Thanks to the community it is possible to also integrate Angular, Preact, or other framework components within our Qwik application. These integrations have APIs completely similar to the React one, which we will analyze, and were developed as mentioned by the community. Thanks to the commitment of all the developers involved the Qwik ecosystem has grown enormously.

As we have seen many times throughout this book, with 

 we have understood that we can do many things, the only thing missing is being able to make coffee.
So to add the integration with React we can type:

This integration configures everything automatically:

┌  🦋  Add Integration  react
│
◇  👻  Ready?  Add react to your app?
│
│  🐬 Modify
│     - package.json
│     - vite.config.ts
│
│  🌟 Create
│     - src/integrations/react/mui.tsx
│     - src/routes/react/index.tsx
│
│  💾 Install pnpm dependencies:
│     - @emotion/react ^11.11.1
│     - @emotion/styled ^11.11.0
│     - @mui/material ^5.13.0
│     - @mui/x-data-grid ^6.4.0
│     - @types/react ^18.2.28
│     - @types/react-dom ^18.2.13
│     - react 18.2.0
│     - react-dom 18.2.0
│
◆  Ready to apply the react updates to your app?
│  ● Yes looks good, finish update!
│  ○ Nope, cancel update
└

We can see that some dependencies will be added to our application and then to create the React example some libraries are installed. A new 

 plugin will also be added to the Vite configuration. This serves to optimize the dependencies related to React during the compilation phase.
The Qwik CLI will also create a 

 file where our React components are located and where they are wrapped with 

// This pragma is required so that React JSX is used instead of Qwik JSX
/** @jsxImportSource react */

import { Button, Slider } from "@mui/material";
import {
  DataGrid,
  GridColDef,
  GridValueGetterParams,
} from "@mui/x-data-grid";

export const MUIButton = qwikify$(Button);
export const MUISlider = qwikify$(Slider, {
  eagerness: "hover",
});

export const TableApp = qwikify$(() => {
  const columns: GridColDef[] = [
    { field: "id", headerName: "ID", width: 70 },
    {
      field: "firstName",
      headerName: "First name",
      width: 130,
    },
    {
      field: "lastName",
      headerName: "Last name",
      width: 130,
    },
    {
      field: "age",
      headerName: "Age",
      type: "number",
      width: 90,
    },
    {
      field: "fullName",
      headerName: "Full name",
      description:
        "This column has a value getter and is not sortable.",
      sortable: false,
      width: 160,
      valueGetter: (params: GridValueGetterParams) =>
        `${params.row.firstName || ""} ${
          params.row.lastName || ""
        }`,
    },
  ];

  const rows = [
    {
      id: 1,
      lastName: "LastName 1",
      firstName: "FirstName 1",
      age: 35,
    },
    {
      id: 2,
      lastName: "LastName 2",
      firstName: "FirstName 2",
      age: 42,
    },
    {
      id: 3,
      lastName: "LastName 3",
      firstName: "FirstName 3",
      age: 45,
    },
    {
      id: 4,
      lastName: "LastName 4",
      firstName: "FirstName 4",
      age: 16,
    },
  ];

  return (
    <>
      <h1>Hello from React</h1>

      <div style={{ height: 400, width: "100%" }}>
        <DataGrid
          rows={rows}
          columns={columns}
          checkboxSelection
        />
      </div>
    </>
  );
});

 route an example page will be created where we can already see 

It should be noted that this is not an emulation of React because we are using the real library.

This is a complete example that is provided out of the box but it makes more sense to analyze a basic example in detail to see all the various cases.
It is not possible to use React components in Qwik without converting them using 

. React components are very similar but behind the scenes, they are very different.
React and Qwik cannot be mixed in the same file. Best practices indicate inserting the React components in the 

---
title: qwikify$
description: Qwik and React together, no problem, qwikify$ is the API to solve your problems.
---

# qwikify$

The integration with React components was created under the name `qwikify$` and the use case is soon explained. Let's imagine we have a series of components written in React that we would like to reuse in our application. If we want to use Qwik and use these components it is clear that without this integration it would not be possible. Furthermore, it is also possible to use React libraries such as MaterialUI, and Threejs, in short, we can draw on the vast React ecosystem. This approach can also be used to get the benefits of Qwik without having to rewrite your React application.
This solution is integrated into the Qwik codebase and therefore it is clear that any problems will be followed directly by the Qwik team or by the large community that supports it, in fact, the import of `qwikify$` comes directly from a core Qwik package.

> Thanks to the community it is possible to also integrate Angular, Preact, or other framework components within our Qwik application. These integrations have APIs completely similar to the React one, which we will analyze, and were developed as mentioned by the community. Thanks to the commitment of all the developers involved the Qwik ecosystem has grown enormously.

As we have seen many times throughout this book, with `qwik add` we have understood that we can do many things, the only thing missing is being able to make coffee.
So to add the integration with React we can type:

```shell
pnpm qwik add react
```

This integration configures everything automatically:

```shell
┌  🦋  Add Integration  react
│
◇  👻  Ready?  Add react to your app?
│
│  🐬 Modify
│     - package.json
│     - vite.config.ts
│
│  🌟 Create
│     - src/integrations/react/mui.tsx
│     - src/routes/react/index.tsx
│
│  💾 Install pnpm dependencies:
│     - @emotion/react ^11.11.1
│     - @emotion/styled ^11.11.0
│     - @mui/material ^5.13.0
│     - @mui/x-data-grid ^6.4.0
│     - @types/react ^18.2.28
│     - @types/react-dom ^18.2.13
│     - react 18.2.0
│     - react-dom 18.2.0
│
◆  Ready to apply the react updates to your app?
│  ● Yes looks good, finish update!
│  ○ Nope, cancel update
└
```

We can see that some dependencies will be added to our application and then to create the React example some libraries are installed. A new `qwikReact` plugin will also be added to the Vite configuration. This serves to optimize the dependencies related to React during the compilation phase.
The Qwik CLI will also create a `src/integrations/react/mui.tsx` file where our React components are located and where they are wrapped with `qwikify$`.

FILE: `src/integrations/react/mui.tsx`

```tsx
// This pragma is required so that React JSX is used instead of Qwik JSX
/** @jsxImportSource react */

import { Button, Slider } from "@mui/material";
import {
  DataGrid,
  GridColDef,
  GridValueGetterParams,
} from "@mui/x-data-grid";

export const MUIButton = qwikify$(Button);
export const MUISlider = qwikify$(Slider, {
  eagerness: "hover",
});

export const TableApp = qwikify$(() => {
  const columns: GridColDef[] = [
    { field: "id", headerName: "ID", width: 70 },
    {
      field: "firstName",
      headerName: "First name",
      width: 130,
    },
    {
      field: "lastName",
      headerName: "Last name",
      width: 130,
    },
    {
      field: "age",
      headerName: "Age",
      type: "number",
      width: 90,
    },
    {
      field: "fullName",
      headerName: "Full name",
      description:
        "This column has a value getter and is not sortable.",
      sortable: false,
      width: 160,
      valueGetter: (params: GridValueGetterParams) =>
        `${params.row.firstName || ""} ${
          params.row.lastName || ""
        }`,
    },
  ];

  const rows = [
    {
      id: 1,
      lastName: "LastName 1",
      firstName: "FirstName 1",
      age: 35,
    },
    {
      id: 2,
      lastName: "LastName 2",
      firstName: "FirstName 2",
      age: 42,
    },
    {
      id: 3,
      lastName: "LastName 3",
      firstName: "FirstName 3",
      age: 45,
    },
    {
      id: 4,
      lastName: "LastName 4",
      firstName: "FirstName 4",
      age: 16,
    },
  ];

  return (
    <>
      <h1>Hello from React</h1>

      <div style={{ height: 400, width: "100%" }}>
        <DataGrid
          rows={rows}
          columns={columns}
          checkboxSelection
        />
      </div>
    </>
  );
});
```

And finally in the `https://my-website.com/react` route an example page will be created where we can already see `qwikify$` in action.

> It should be noted that this is not an emulation of React because we are using the real library.