Creating React app with Redux Toolkit & RTK Query

To create React apps with Redux Toolkit and RTK Query, you'll need to follow a few steps. Redux Toolkit is a library that simplifies the process of managing state in a Redux application, while RTK Query is a data fetching and caching library built on top of Redux Toolkit. Here's a step-by-step guide to help you get started:

Create a new React app using Create React App or any other preferred method. Open your terminal and run the following command:

Step 2: Install Redux Toolkit and RTK Query

In the root directory of your React app, install Redux Toolkit and RTK Query by running the following command:

npm install @reduxjs/toolkit react-redux @reduxjs/toolkit react-router-dom @reduxjs/toolkit axios

Create a new file called store.js in the src directory. Inside store.js, set up your Redux store using Redux Toolkit. Here's an example of how it could look:

import { configureStore } from '@reduxjs/toolkit';

import { setupListeners } from '@reduxjs/toolkit/query';

import { pokemonApi } from './services/pokemon';

    [pokemonApi.reducerPath]: pokemonApi.reducer,

    getDefaultMiddleware().concat(pokemonApi.middleware),

In this example, we're configuring the Redux store with configureStore from Redux Toolkit. We're also including pokemonApi.reducer and pokemonApi.middleware from our RTK Query service (more on that in the next step).

Create a new directory called services inside the src directory. Inside the services directory, create a new file called pokemon.js (or any name you prefer). This file will contain your RTK Query service definition. Here's an example of how it could look:

import { createApi, fetchBaseQuery } from '@reduxjs/toolkit/query/react';

  baseQuery: fetchBaseQuery({ baseUrl: 'https://pokeapi.co/api/v2/' }),

      query: (name) => `pokemon/${name}`,

export const { useGetPokemonByNameQuery } = pokemonApi;

In this code snippet, we're using createApi from RTK Query to define our API service. We set the reducerPath to 'pokemonApi' to match the key used in the Redux store configuration. We define an endpoint called getPokemonByName which takes a name parameter and constructs the API query accordingly. We also export a custom hook called useGetPokemonByNameQuery that we can use in our components.

Now, you can create a React component that utilizes the RTK Query service and Redux Toolkit. Here's an example:

import { useGetPokemonByNameQuery } from './services/pokemon';

  const [pokemonName, setPokemonName] = useState('');

  const { data, error, isLoading } = useGetPokemonByNameQuery(pokemonName);

By following these steps you are succesfully able to create a React App with Redux Toolkit & RTK Query.

In conclusion, using Redux Toolkit and RTK Query in React apps offers a streamlined approach to state management and data fetching. These libraries simplify complex tasks, making development more efficient, scalable, and SEO-friendly. By leveraging Redux Toolkit's powerful features and integrating RTK Query for efficient data retrieval, developers can create robust React applications with ease.

Creating React apps with Redux Toolkit and RTK Query simplifies state management and data fetching, providing a powerful combination for efficient and scalable applications.

Creating React Apps With Redux Toolkit and RTK Query

React Native has emerged as a popular framework for developing cross-platform mobile applications. Its ability to leverage native components using a single codebase has made it a favorite among developers. However, like any technology, React Native can present its own set of challenges. One such challenge arises when the release APK of a React Native app fails to fetch data from the local network. This blog post will explore common reasons behind this issue and provide practical solutions to ensure seamless data fetching in your React Native release APK.

Fetching data from a local network is a crucial aspect of many mobile applications. During development and testing, React Native apps often interact seamlessly with local network resources. However, things can take an unexpected turn when the app is bundled into a release APK for distribution. The most common manifestation of this issue is the app's inability to fetch data from the local network, causing frustration for both developers and end-users.

Network Security Policies: One of the primary reasons behind this issue lies in the tightened security policies that are applied to the release APK. Unlike the development environment, where network requests might be allowed without restrictions, release APKs are subject to stricter security controls.

CORS (Cross-Origin Resource Sharing) Restrictions: CORS policies play a significant role in web and mobile app security. While a React Native app running in the development environment might not encounter CORS issues, the release APK could face restrictions when trying to access resources on the local network.

Network Permissions: Android and iOS platforms require explicit permissions to access network resources, including those on the local network. The release APK may lack the necessary licenses to make network requests.

To resolve network security-related issues, you can adjust the network security configuration of your app. In Android, this involves modifying the res/xml/network_security_config.xml file to include exemptions for local network resources. You can whitelist specific IP addresses or domains that your app needs to access.

    <domain-config cleartextTrafficPermitted="true">

        <domain includeSubdomains="true">your-local-domain.com</domain>

If your app fetches data via APIs or web services on the local network, ensure that CORS headers are appropriately configured on the server. Additionally, you might need to include CORS-related configuration in your app code, such as using the fetch API with the mode option set to 'cors'.

In Android, make sure your app's AndroidManifest.xml includes the necessary permissions for network access. You may need to add the INTERNET permission:

<uses-permission android:name="android.permission.INTERNET" />

For iOS, ensure that your app's Info.plist file includes the NSAppTransportSecurity key and allows arbitrary loads if your app is accessing local network resources without HTTPS.

Fetching data from the local network is a fundamental requirement for many React Native applications. While issues with data fetching in the release APK can be frustrating, they are not insurmountable. By understanding the potential causes and applying the appropriate solutions, you can ensure that your React Native app seamlessly fetches data from the local network in both development and production environments.

Remember that troubleshooting and solving such issues are integral parts of the development process. Staying informed about security policies, network permissions, and platform-specific configurations will empower you to overcome challenges and deliver a polished and functional React Native app to your users.

Troubleshoot React Native release APK's local network data fetching issues with security, CORS, and permissions solutions for seamless app performance.

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