Now, as you can see, in the beginning, the app provides nothing else than a log in button. The last command will make your app run and will open it on your default web browser (i.e., it will open http : / /localhost : 3000 in your browser).
If you do have your own account, you can create a SPA in your Auth0 dashboard and replace the environment variables above with your its details. Note: The export commands above create environment variables with details of a demo Auth0 account.
#IONIC SVG SPLASH SCREEN INSTALL#
# install all dependencies npm install # run the application export REACT_APP_AUTH0_DOMAIN =Įxport REACT_APP_AUTH0_CLIENT_ID =6QfrEoazULfAssc0NqqGhfKkb7mumsCJĮxport REACT_APP_AUTH0_REDIRECT_URI = npm start # move into the cloned app cd react-splashscreen
To do so, open a terminal, move into the directory where you usually save your projects, and execute the following commands: # clone the sample git clone So, as mentioned before, you will start by cloning a pre-existing React app that suffers from a not-that-fast loading time. Now that you know why you might need a splash screen in your React apps and that you know (conceptually) how you would implement it, it is time to see the whole concept in action. Developing a Splash Screen for Your React Apps Then, when the app finishes loading this state, your component will allow it to render and it will hide the splash screen. In this case, you will create a HOC that will get a component (your whole app) and that will return a splash screen while the app is loading the desired state. That is, a HOC is nothing more than a function that gets another component as a parameter and that, depending on the situation, generates a new component with different capabilities. Concretely, a higher-order component is a function that takes a component and returns a new component.- React. They are a pattern that emerges from React’s compositional nature. HOCs are not part of the React API, per se. However, you might benefit from the official definition of HOCs:Ī higher-order component (HOC) is an advanced technique in React for reusing component logic. As you will see while developing your splash screen, the approach and the concept are quite simple.
#IONIC SVG SPLASH SCREEN HOW TO#
If you don't know what a HOC is or how to use it, don't worry. The best way to develop a splash screen for your React app is to define it as a High-Order Component (HOC). So, there is no way to initialize both in parallel. This is so because Firebase uses Auth0 users to authenticate. However, what makes it even a better scenario for splash screens is the fact that Firebase can only initialize a session after Auth0 finishes initializing its own. This situation, by itself, would already be a good scenario to implement a splash screen in a React app. Auth0, which is an identity service, enables users to authenticate into your apps and might need half a second to check for user sessions.Īs you can see, in this React app, both services need some time to initialize a session before enabling users to go on. Firebase provides, among other things, a real-time database that might require an authenticated user before accepting requests (that's the case of the React app that you will work on). In order to be useful, the React app that you will clone needs to create/check sessions into two different providers: Firebase and Auth0. In this article, you will clone a React app from GitHub that faces this exact scenario. In these cases, your app (and mainly your users) might benefit from a nice splash screen. However, there are times where your app needs to load some data or work on some process that is so important that it doesn't really make sense to show anything before it finishes. You may wonder, "do I need a splash screen in my React app?" The answer, like always, is "it depends." If your React app doesn't need more than a few milliseconds to be ready, then you probably don't need a splash screen. The main goal of a splash screen is to make your users aware that the program is in a state where it is loading important data before they can start using the program. The methods below allows showing and hiding the splashscreen after the app has loaded.As defined on Wikipedia, a splash screen is a graphical control element consisting of a window containing an image, a logo, and the current version of the software, and it usually appears while a game or program is launching. This plugin displays and hides a splash screen during application launch.
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