Redux: Persist Your State – Async LA – Medium

Redux: Persist Your State  #redux #react #reactnative #reactjs #reactjs

  • You create your store from scratch, initialize state, and maybe set some basic state based on the url (if you are in a browser).
  • But the blob could be days, weeks or years old!Redux Persist provides a consistent, performant, and structured way to persist state.If you still require more convincing, read Jani Eväkallio’s piece on offline first applications.Part 2: Architecture2.1 The Component PartsThe “persistence layer” is actually two stateful reactive objects, plus a higher…
  • It also creates register and rehydrate methods which will be used to register each persistoid, and dispatch the actual rehydrate action respectively.PersistoidThe persistoid is the actual state sink.
  • additionally it handles the PURGE action for clearing stored state.2.2 Whats new in Redux Persist v5code splitting reducersbetter integration story for libs (e.g. redux-offline)ability to colocate persistence rules with the reducer it pertains tofirst class migration supportenable PersistGate react component which blocks rendering until persistence is complete (and enables similar patterns…
  • Thats means a consistent story around extensibility, and the ability to use redux-devtools to debug any tricky issues internal to the persistence layer.Ergonomic ReduxVanilla Redux requires a ton of ceremony to use.

When your app reloads, the javascript process has nothing in memory. You create your store from scratch, initialize state, and maybe set some basic state based on the url (if you are in a browser)…
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Awesome Expo Apps for React Native – BlechaTech – Medium

Awesome Expo Apps for React Native  #reactnative #reactjs #reactjs

  • Awesome Expo Apps for React NativeI’ve been working through creating an app that I need for my kids baseball activities during the past month and I’ve been really impressed with the toolset that the Expo team has put together.
  • It’s much nicer for me if this doesn’t have to go through the app store for development and testing purposes.JavaScript tool set — I’ve decided to use JavaScript as my primary language for the next bit unless there’s a specific reason not to use it.React — I’m spending most of my front end development in react these days, and I’m very happy about it.
  • The mental model is fairly straightforward and translates from web to mobile gives you an expo app by default.
  • Check out the expo explanation video:I decided I wanted to keep track of the expo apps I’m seeing in publish and the added bonus that they’re typically linked with a github account.
  • The first two are (authors and notes are cited in the github repo, link below):Seattle JS Conference AppGraphQL NYCI’ll keep adding to the list as I find new expo apps and PRs are welcome!Photo Credits:

I’ve been working through creating an app that I need for my kids baseball activities during the past month and I’ve been really impressed with the toolset that the Expo team has put together. Given…
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Building Small Apps with React

Building Small Apps with React  #reactjs #javascript #AppDev #programming #coding

  • Enter Cerebro: a cross platform extensible electron app that provides the perfect tools to build something small but useful with React.
  • Now we can do a bit of setup:

    Our plugin, cerebro-weather, will allow users to search for a city and then show a concise preview of the weather conditions of that city if it exists.

  • Create an file with the following:

    This function makes an initial request to the API to search for a given city.

  • We convert this response to JSON and retrieve the weather details for the first location with the location’s , which is its unique identifier and the only actual way to retrieve weather data from the API.
  • This gets the weather data with our API function, and displays the first consolidated weather report.

Guide developers that newly learned React to build a small but useful app with Cerebro
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Congratulations on 🌟50,000🌟 stars, @reactnative! Here’s to the next 50,000 🥂

  • Another great way to learn more about the components and APIs included with React Native is to read their source.
  • The React Native documentation only discusses the components, APIs and topics specific to React Native (React on iOS and Android).
  • For further documentation on the React API that is shared between React Native and React DOM, refer to the React documentation.
  • If you encounter a bug with React Native we would like to hear about it.
  • For help and questions with using React Native please make use of the resources listed in the Getting Help section.

react-native – A framework for building native apps with React.
Continue reading “Congratulations on 🌟50,000🌟 stars, @reactnative! Here’s to the next 50,000 🥂”

Building Small Apps with React

Building Small Apps with React - Cerebro  #reactjs #javascript #AppDev #programming

  • Enter Cerebro: a cross platform extensible electron app that provides the perfect tools to build something small but useful with React.
  • Now we can do a bit of setup:

    Our plugin, cerebro-weather, will allow users to search for a city and then show a concise preview of the weather conditions of that city if it exists.

  • Create an file with the following:

    This function makes an initial request to the API to search for a given city.

  • We convert this response to JSON and retrieve the weather details for the first location with the location’s , which is its unique identifier and the only actual way to retrieve weather data from the API.
  • This gets the weather data with our API function, and displays the first consolidated weather report.

Guide developers that newly learned React to build a small but useful app with Cerebro
Continue reading “Building Small Apps with React”

Guest Post: Automatically Deploy Pull Requests for Create React Native App and Expo Projects

  • TL;DR;appr builds and deploys pull requests in your create-react-native-app and Expo-based projects, and posts a link and a QR code to your PR, so you can run the app on your device or emulator in seconds!Great teams review their codeI’m sure you’ll agree: Code reviews are a useful tool in a development team’s workflow.
  • You wouldn’t release code to production without having another pair of eyes on it first, would you?Thankfully, GitHub makes code reviews simple.
  • Netlify offers the same functionality for deploying static front end sites.Sadly, this one-click workflow hasn’t been available to mobile developers without setting up complex build and deployment pipelines, and even then, installing an app to be able to test a simple change still takes way too long.Inspired by Expo Sketch, I wanted to see if it would be possible to set up review apps for React Native.Introducing apprAppr is a script that deploys pull requests in your project to Expo, and posts a link and a QR code to your PR.
  • Point your Expo app camera to the QR code and the review app will launch on your device.
  • Switching to your preferred CI should be easy, and PRs to add support are welcome!To make testing your pull requests easy, head to FormidableLabs/appr on GitHub and follow the simple Getting started guide to add appr to your project!

Jani builds React Native apps at Formidable, a Seattle/London-based consultancy and open-source shop. You can follow him on Twitter as @jevakallio. appr builds and deploys pull requests in your…
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Use `react-devtools-core/standalone` instead of fork by jhen0409 · Pull Request #44 · jhen0409/react-native-debugger · GitHub

react-native-debugger – The standalone app based on official debugger of React Native, and includes React Inspector / Redux DevTools
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