When it comes to React Native development, loading data from the server-side can be a complex challenge. There are a number of important questions to consider. What precisely is needed to successfully retrieve server-side data? What strategies are available to a developer to ensure successful data retrieval? How can other elements of the React Native development architecture be leveraged to make loading data easier?
Data loading is an area of development where problems can arise quickly and without warning. According to research conducted by Google, network latency is generally the main cause of slow page load times. This can be particularly damaging when data is being loaded from a remote server rather than from a local source. With the necessity for responsive, user-friendly applications, ensuring successful loading of data is essential. There have been numerous attempts to solve this issue, including development of DevOps pipelines, efficient usage of caching, understanding and optimization of requests/responses, and adherence to best practices.
In this article, you will learn how to utilize all of these strategies and tools when loading data from the server-side in React Native. Specific topics covered include code optimization, usage of industry-standard techniques such as running pre-fetching strategies for data loads, and strategies for improving UI and viewing experiences. The goal is to equip readers with the know-how and capabilities to make informed decisions during their data load processes that will contribute to webpages that load faster, run smoother, and present an overall better user experience.Definitions
React Native: React Native is a framework designed to enable the development of mobile applications for both iOS and Android. It is based on React, a JavaScript library, and it’s used to create user interfaces that are both easy to use and powerful.
Data: Data refers to the information or content that an application stores, retrieves, and displays. This content may include images, text, audio, or video.
Load: The term “load” refers to the process of getting data from a server, such as a web server, and making it available to the client, i.e. the mobile device.
Server-Side: Server-Side refers to programming code that runs on the server and interacts with a database. In the case of React Native, this code is responsible for retrieving the requested data from a database and sending it to the client.
In general, when loading data in React Native applications, the data needs to be fetched from the server-side, which typically includes a database. This is because React Native is a client-side framework, and thus cannot directly interact with a database. To access the data, the application must first make a request to the server-side. The server-side code receives the request and then goes to the database to fetch the requested data. The data is then sent back to the client, where the React Native application can use it to render the user interface.

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Loading Data From the Server-Side in React Native

Fetch API

One way to load data from a server-side in React Native is to use the fetch API. This API provides a one-stop shop for HTTP requests, enabling developers to retrieve data from outside sources. The most common way of fetching data is to use the GET request, where a web server is requested to send its resources as the response to the GET request. To use this API, developers must include a fetch library to their project, such as Axios, which is a popular choice.


Another way to load data from the server-side is to use AsyncStorage, which is a local key-value store that allows developers to store data in-between app launches. This storage is asynchronous and non-persistent, meaning that data is not kept permanently and will not be available on subsequent app launches. To use AsyncStorage, developers must first set up the AsyncStorage service and then call the setItem and getItem methods to store and retrieve data from the server-side.


The last method for loading data from the server-side is to use NetInfo, which is the React Native API for retrieving information about the current network connection. With this API, developers can check the user’s connection type, determine the current state of connection, subscribe to connection change events, and more. To use this API, developers must first set up the NetInfo service by calling the addEventListener method and then call the fetch API to request data from the server-side.


  • Fetch API can be used to request data from outside sources.
  • AsyncStorage allows developers to store data in-between app launches.
  • NetInfo helps developers retrieve information about current network connections.

Fetching Data from the Server

React Native is a powerful JavaScript framework used for developing mobile applications for Android and iOS. It enables developers to create natively rendering mobile applications with React, a popular JavaScript library. React Native had recently added the ability to access server-side data from the application. This ability has opened up a new world of possibilities, allowing developers to bring their application to the next level.

Fetching the Data

When it comes to fetching server-side data with React Native, the Fetch API is the most common way of doing so. The Fetch API uses the same interface as the native XMLHttpRequest interface. It provides a good way to send and receive data from the server, but most importantly, it also provides an easy way to manage user authentication and other duties.

Data Format

One of the main advantages of using the Fetch API is that it supports various data formats. Data format plays an important role in the interaction between the server and the client. The most popular formats used for this purpose are JSON and XML. Each of these has its own advantages and drawbacks, but they are both efficient methods of transferring the data.
It is also important to remember that when it comes to transferring the data, security is of utmost importance. It is recommended to always take necessary measures to secure the data that is being transferred between the server and the client, such as using SSL/TLS protocols and encryption.
Finally, it is essential to remember that when using the Fetch API, the server must be configured to correctly parse the request, or else the data will not be sent correctly. This can be achieved by setting the necessary headers and other configuration options that the server needs in order to understand the request correctly.

Parsing Data from the Server

Parsing Data from the Server
Given that React Native is an open-source framework for building native mobile applications on both Android and iOS platforms, data loading from server-side technologies is essential for successfully building and deploying React Native applications. This article will discuss various methods available for loading data from server-side technologies in React Native.
Fetch API
The oldest and most commonly used method for loading data from the server-side in React Native is using the Fetch API. This is a JavaScript API based on the Promises interface that provides a consistent, cross platform method for making asynchronous HTTP requests. To use the Fetch API, use the fetch() method that takes the URL endpoint as a string and returns a promise that resolves to a Response object with the data at the specified endpoint. The Response object can then be parsed with .text() or .json(), depending on the format of the data.
Axios is a third-party library commonly used to make HTTP requests from the server-side in React Native. It works very similarly to the Fetch API but also allows for many additional features, such as configuring timeout, redirects, headers, displaying progress, and canceling requests. In order to use Axios, install the library from npm and import it into your React Native application. Then, use the Axios API to make HTTP requests with the .get() or .post() methods.
XMLHttpRequests (XHR) is another popular option for loading data from the server-side in React Native. This is a JavaScript technology that has been around since the early 2000s and is the basis for most modern web browsing experience. To use XHR in React Native, use the XMLHttpRequest API, which is available out of the box and does not require any additional library. The XMLHttpRequest API is very powerful but also very complex so it requires a good understanding of HTTP requests before attempting to make any requests.
Parsing data from the server-side in React Native can be done in a number of ways, with the most popular options being the Fetch API, Axios library, and using XMLHttpRequests. These methods all have their own benefits and drawbacks and it is important to carefully consider each option before deciding which one to use in a specific project. No matter which method is chosen, loading data from the server-side in React Native is essential for building successful applications.


Loading data from the server-side is a fundamental task in React Native development. How do developers best approach the task? To get the most out of the React Native programming model, developers must consider their options and strategize how to achieve the desired data loading functionality.
Whether you are a beginner just starting out or an experienced programmer, we invite you to keep up with our blog for the latest releases in React Native server-side data loading. No matter your skill level, you will find something new to learn each and every time you follow our blog.
FAQs on Loading Data with React Native
Q1. What is React Native data loading?
A1. React Native data loading is the practice of retrieving data from a server through a client-side application. It generally involves an API call to the server which then responds back with the requested data. This enables the client application to efficiently use the data for display or other purposes.

Q2. What is an API call?
A2. An API call is a request sent from the client to the server. The purpose of the call is to access a given endpoint URL and retrieve data. This is accomplished by the use of various types of web protocols such as GET, POST, or PUT.
Q3. What is the difference between a GET and POST request?
A3. GET requests are used to retrieve data from the server while POST requests are used to post data to the server. GET requests are limited to a certain number of characters while POST requests are not limited in size.
Q4. What advantages does React Native offer for data loading?
A4. React Native offers a wide range of tools to help developers quickly and easily access server-side data. These tools include components for making API calls, caching data, and displaying the data using UI elements.
Q5. How do I troubleshoot problems I’m having with data loading in React Native?
A5. When troubleshooting data loading issues with React Native, it’s important to do a thorough check of both the client-side and the server-side for potential problems. Additionally, carefully examine any errors that you receive and use online resources to look up potential solutions.

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