How to Handle Errors Correctly with the JavaScript Fetch API

The native fetch() API is the standard way to make HTTP requests in modern JavaScript. However, one common trap for developers is assuming fetch() automatically rejects a promise when a server returns an HTTP error code (like 404 Not Found or 500 Internal Server Error). In this guide, we will look at how fetch() handles errors and how to write a reliable wrapper for clean API requests. The Correct Approach is to Check response.ok **JavaScript code: /api/user/${userId}); // Explicitly check for HTTP errors if (!response.ok) { throw new Error(`HTTP Error! Status: ${response.status}`); } const da