on project we have need use architecture, where getting data from API display on screens and storage in locale state. How this architecture implementing on React Native with using state managment libraries.
P.S. For data, with getting from API, we cannot be used global state.
You could try using React-Query for fetching data and React.Context for storing and providing data to children.
For a persistent storage you can use AsyncStorage
Related
Hi is there any public project/example using react-query exclusively as a local state manager for a react app?
I can only find projects where it's used to fecth data from an API.
It looks like React query works only with outside data of your app:
React Query is a type of state manager, specifically designed to
manage asynchronous state that you get from outside of your app, so
server-state, API state, or anything else that is not local client
state. With that said, it's easy and even encouraged to keep use React
Query along side a global state manager for your client state.
Its very common for existing applications that after moving their
server state to React Query, their client state is extremely small and
doesn't even need an external library like Redux. However, some
applications actually do have a lot of local client state to manage
and something like Redux is warranted.
I will link to a talk about this very subject very soon. But you can
feel good pressing forward using both React Query for anything that is
asynchronous data and Redux for anything that is local and
synchronous.
I have a React app. I am use to using a state management system like Redux or using the useContext provided from React hooks. I now am working with GraphQL and I hooked my app to up to use urql. I want to be able to have a central state like in react in my project and to my understanding I should be able to achieve this with urql. What will be the setup for this exactly. For instance, say I have something simple like toggling dark mode on my website. I want that state to live in some central state which I can connect with all my other components using urql is this possible and if so how can I achieve this?
You can combine both to manage global state, use redux or context api for local state management, toggle theme or any other local state that do not require network request, urql for data caching, where you can perform local data CRUD operation when hitting server.
I have a database that changes its values constantly and I'm creating an app that displays that information using React Native.
My question is: how should I store that data in the application and how should I update that information every few seconds?
In the database I have a single table with a single record that I would have to download from time to time. I want to access that data from different screens.
I've seen Context and AsyncStorage to store the data and use it globally but I don't know which one is better or how to use it well.
You can use redux, Context, react hooks and AsyncStorage also. But using AsyncStorage is not the best option to manage a store. It will slow your app and you can use AsyncStorage to save username, tokens, sessions etc. In my opinion, using react hooks is the best method to manage a store.
You can also use MobX for state management easy to understand and also reliable
I am developing a feature like a cart of which data I want to use in multiple screens. Also, want to manage the view cart and clear cart items but locally only. What is the recommended way to go with?
1) AsyncStorage
2) Redux
Kindly help me and let me know if there is a misconception on my side.
AsyncStorage and Redux serve different purposes.
AsyncStorage is there to allow you to store data that is persisted between app instances (that is, between restarts of your app).
Redux is a state management system that is meant to solve the problem of moving state around components in react.
What you're describing can actually use both, where Redux is used for state management, and the redux store itself can be saved into AsyncStorage for later use. There are Redux related libraries that do just that, such as Redux-Persist.
I want to embed data into react-native app. I think we have to use asyncstorage. We can use rocksdb as storage for asyncstorage. Documentation does not give any example of this. Wondering how to use it with rocksdb.
Also, react-native docs mentions asyncstorage data being global. Does that mean asyncstorage data is accessible to all the apps?
AsyncStorage is a core react-native API that allows you to store key value pairs. It's global in that it is accessible within anywhere in the app but obviously not to all apps because of iOS sandboxing. It works on its own, as is, independently of any other database systems.
RocksDB is a native key-value store that currently only has a native implementation. If you want to use it in your react-native project, you or someone else will have to write an API (bridge) so that it can be used through js. And that would have nothing to do with AsyncStorage.
EDIT: Apparently AsyncStorage tries to use RocksDB on the native side if it exists. Otherwise, it seems to simply save the data in a text file. https://github.com/facebook/react-native/blob/master/React/Modules/RCTAsyncLocalStorage.m