React Native Fetch() Network Request Failure: How to Fix the \"Network Request Failed\" Error on iOS?

React Native fetch() Network Request Failure: A Comprehensive Solution

Introduction:

When working with React Native applications, developers may occasionally encounter a dreaded "Network Request Failed" error while attempting to perform fetch requests. This article aims to provide a comprehensive solution to resolve this issue.

The Problem:

The root cause of this error often lies in the fact that iOS devices, by default, do not allow unencrypted HTTP connections. Hence, if the fetch request is attempting to access an endpoint that does not use HTTPS, the request will fail.

Solution:

To resolve this issue, we need to configure the application's info.plist to explicitly allow non-HTTPS connections. This can be achieved by adding the following code within the info.plist file:

<code class="xml"><key>NSAppTransportSecurity</key>
<dict>
    <key>NSAllowsArbitraryLoads</key>
    <true/>
</dict></code>

Implementation:

1. Open the info.plist file located in the root directory of your React Native project.
2. Navigate to the end of the file and paste the above code within the element.
3. Save the file and restart your development environment.

Additional Information:

• It is important to note that enabling arbitrary loads may expose your application to potential security vulnerabilities.
• For security purposes, it is recommended to use HTTPS connections for all network requests.
• If you encounter any further issues with network requests, inspect the console logs or use a network debugging tool to gain more insights.

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