React Native Posts

Posts about software development written by Nick Pachulski

Syncing State with AsyncStorage

I have a few providers which initialize state, shove it in a context, and then ensure that the state is synchronized with AsyncStorage so that if the app is quit and restarted, the context’s state is rehydrated from AsyncStorage. A few examples of the types of state I tend to treat this way are API tokens and user IDs.

Testing React Native Alerts

Today I needed to test drive a feature which allows users to confirm their account. Users find their name in a list and tap a “👋 This is Me” button by it. When the button is tapped, they’re sent a text message with a 6-digit confirmation code and asked to enter it into a react native alert prompt, which is also shown on screen after the “👋 This is Me” button is tapped.

Choosing an API Mocking Dependency to use with Jest

Recently I’ve been working on a universal Expo app (iOS, Android & web) intended to help my hockey team keep track of our player and game stats, track who’s RSVP’d to our weekly games, and so on. To keep track of all those things, the Expo app communicates with a restful Ruby on Rails API. I decided, for typical reasons which aren’t the subject of this post, to mock that rails API as I test drove the React Native app.

Create New Expo Projects with Some Pep

Expo sets you up with a new React Native project that will run natively on Android, iOS, and in the browser with a single codebase. You can also put that same code in an Electron app to get it running as Mac and Windows desktop applications.