$http request blocked due to CORS policy
What is CORS? CORS stands for Cross-Origin Resource Sharing. It is a security mechanism implemented by web browsers to prevent malicious websites from accessing resources and data from another domain….
Tag: Axios
Forgetting to set headers in an API request
Forgetting to set headers in an API request can lead to various issues, such as authentication errors, data format issues, or unexpected API responses. Headers are crucial for passing metadata….
Not handling API failures leading to unhandled errors
Proper API Error Handling in React Applications A critical aspect of robust React development is properly handling API failures to prevent uncaught errors and provide a good user experience. The….
Creating a retry mechanism for failed requests
When making API calls, failures due to network issues, server errors, or timeouts are common. A retry mechanism helps improve reliability by automatically retrying failed requests. 1. Understanding Retry Mechanisms….
Forgetting to abort API requests on unmount
In React, when you make asynchronous operations like API requests inside a component (using fetch, axios, or other libraries), it’s important to clean up those operations when the component unmounts…..
Not handling network errors in fetch/axios
Proper Network Error Handling in React Applications Handling network errors properly is crucial for creating robust React applications. Here’s how to implement comprehensive error handling for fetch and Axios requests…..
Mocking API Calls in Tests
When testing React components that rely on external data or API calls, it’s important to mock those API calls so that the tests are predictable, isolated, and run without relying….
Using Axios Interceptors for Global Error Handling
When building applications that make HTTP requests, handling errors gracefully is crucial. Axios, a popular HTTP client for JavaScript, provides interceptors that allow you to handle HTTP request and response….
Mocking API Calls in Tests
When writing tests for your React components, especially those that make API calls, it’s important to isolate the component’s functionality and avoid hitting real APIs. This is where mocking API….
Uploading Files in React
Handling file uploads in React applications requires special consideration compared to regular form data. Here’s a comprehensive guide to implementing file uploads effectively: 1. Basic File Upload Using Native HTML….