Learn Jwt, Recompose and Svelte

JavaScript community has been shaken recently by a release of Svelte 3 and for a good reason - it's a completely different approach than React or Vue. To quote the docs:

"[Svelte](https://svelte.dev/) is a radical new approach to building user interfaces. Whereas traditional frameworks like React and Vue do the bulk of their work in the browser, Svelte shifts that work into a compile step that happens when you build your app."

**The best part?** If you have 26 spare minutes you can learn the basics of Svelte 3 and start building your own apps with it!

Enjoy!



The magical disappearing UI framework

 - The web's JavaScript bloat crisis, solved. Svelte turns your templates into tiny, framework-less vanilla JavaScript.
 - Simple and familiar. Build apps out of composable, easy-to-write blocks using languages you already know.
 - Super fast, rock solid. Compile-time static analysis ensures the browser does no more work than it needs to.

svelte

Up and running with Svelte 3

This playlist will be a smorgasbord of Auth0 authentication and authorization topics. Everything from adding Auth0 to various apps, customizing your Auth0 settings, adding specific rules / audiences / features, and debugging errors. 

JavaScript® (often shortened to JS) is a lightweight, interpreted, object-oriented language with first-class functions, most known as the scripting language for Web pages, but used in many non-browser environments as well such as node.js or Apache CouchDB. It is a prototype-based, multi-paradigm scripting language that is dynamic, and supports object-oriented, imperative, and functional programming styles.

javascript

Auth0 Tips and Tricks 

JSON Web Token (JWT) is a low overhead option for authentication that is easy to implement and scales with your application. There is no need to store session data as everything you need is stored in an encoded string sent in the JWT, significantly reducing database overhead for your servers.

In this course, we will build a simple authentication server that will act as a token issuer, and we will use those tokens to access resources on an API.  Starting from scratch, you will learn how easy token based authentication can be and will understand how to use them on your APIs as well as on the front end of your web applications.

Express is a minimal and flexible Node.js web application framework that provides a robust set of features for web and mobile applications.

express

JSON Web Token (JWT) Authentication with Node.js and Auth0

***Note: Active maintenance for Recompose has been discontinued since the announcement for React hooks. Your existing code using Recompose will still work. Recompose is not compatible with RxJS version 6 and beyond. You can read more about the decision [here.](https://github.com/acdlite/recompose/issues/756#issuecomment-438674573)*** 


Loading data and handling events almost always introduces layers of complexity into React apps. Recompose and RxJS solve your async problems by using Streams to output components. This course walks you through combining the powers of React and RxJS to stream data into JSX with streaming patterns and pure React components.

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

Build React Components from Streams with RxJS and Recompose

In this course, you will learn to use many of the most powerful and convenient higher-order components within Recompose by coding several real-world examples. Using recompose looks very different from “vanilla” React; so you will also get comfortable with the look and feel of a “recomposed” component. The best part is no more need for class components! You’ll learn how to use Recompose to both modify components and also create your own higher-order components.

Higher Order Components with Functional Patterns Using Recompose

Learn how to use the 'compose' function to mix together HOCs, even ones from other libraries like 'connect' from redux.

Compose Multiple Higher Order Components Together using Recompose

Learn how to use the 'withState' and 'withHandlers' higher order components to easily add local state to—and create a reusable local state pattern for—your functional stateless components. No need for classes!


Add Local State to a Functional Stateless Component using Recompose

Learn how to use the 'withReducer' higher order component using the alternative reducer form. If you like using reducers in redux, you’ll be able to reuse that same technique but for local state.

Add Local State with Redux-like Reducers using Recompose

Learn the proper patterns for writing a higher order component from scratch.

Write a Higher Order Component from Scratch

Learn how to use the 'mapProps' higher-order component to modify an existing component’s API (its props). 'mapProps' takes incoming props and changes them however you’d like; for example, filtering the props by a field.

Transform Props by using the Recompose mapProps Higher Order Component

Learn how to use the ‘withProps’ higher order component to pre-fill a prop, unable to be overridden.

Lock Props by using the Recompose withProps Higher Order Component

Learn how to use the 'lifecycle' higher-order component to conveniently use hooks without using a class component.

Add Lifecycle Hooks to a Functional Stateless Component using Recompose

Learn how to use the ‘flattenProp’ higher order component to take a single object prop and spread each of its fields out as a prop.

Flatten a Prop using Recompose

Learn how to use the ‘branch’ and ‘renderComponent’ higher-order components to show errors or messaging when your component is in a non-optimal state. Avoid putting extraneous logic to show errors or messaging into your core component by organizing your non-optimal states into custom higher-order components.

Show Error Messages based on Non-Optimal States with Recompose

Learn how to use the ‘branch’ and ‘renderNothing’ higher-order
components to render nothing when a certain prop condition is
met. Sometimes you only want to render a component when valid
props exist or are in a certain condition; ‘renderNothing’ is
an easy way to completely remove the component when you don’t
need to show it.

Render Components Based on Predicates in Recompose

Learn how to use the 'branch' and 'renderComponent' higher-order components to show a spinner while a component loads.

Show a Spinner While a Component is Loading using Recompose

Learn how and when to use the ‘pure’, ‘onlyUpdateForKeys’,
‘onlyUpdateForPropTypes’, and ‘shouldUpdate’ higher order components.
Each one provides a certain granularity of control over prevent
unnecessary renders. Learn how they build upon each other to provide
different options.

Optimize Component Rendering using Recompose

Learn about optimizations (like component squashing) that Recompose uses behind the scenes. More reading on [Performance](https://github.com/acdlite/recompose/blob/master/docs/performance.md).

Learn How Recompose Optimizes Higher Order Components

JSON Web Tokens are an open, industry standard RFC 7519 method for representing claims securely between two parties.

In this lesson we will look at all of the pieces that combine together to create a JWT (j AWT) or JSON Web Token. You will use node to create a JWT, and then verify it in the JWT debugger.

Creating JWTs (JSON Web Tokens) in Node

Learn how to user the ‘componentFromProp’ helper and ‘defaultProps’ higher order component to swap the underlying html tag of your component. Sometimes we want a component to behave the same overall but to use a different element in the HTML output. An example is swapping an <a> for a <button> or even a react router <Link> depending on circumstance.

Set the HTML Tag of a Component via a Prop using Recompose

Learn how to use the 'withPropsOnChange' higher order component to help ensure that expensive prop computations are only executed when necessary. Simply specify which props are “expensive” and provide a factory function for those props.