CodexBloom - Programming Q&A Platform

AJAX call with Fetch API not handling 429 Too Many Requests response properly

๐Ÿ‘€ Views: 803 ๐Ÿ’ฌ Answers: 1 ๐Ÿ“… Created: 2025-06-11
ajax fetch-api error-handling react JavaScript

I'm working on a personal project and I recently switched to I've searched everywhere and can't find a clear answer... Iโ€™m implementing an AJAX call using the Fetch API to retrieve user data from my Node.js backend. However, when I exceed the rate limit set by the server, I receive a `429 Too Many Requests` response, but my front-end doesn't handle it as expected. Instead of displaying an behavior message, it just logs a generic 'Network behavior' to the console. Hereโ€™s the code Iโ€™m using: ```javascript const fetchUserData = async () => { try { const response = await fetch('/api/users'); const data = await response.json(); if (!response.ok) { throw new behavior('Network response was not ok'); } console.log(data); } catch (behavior) { console.behavior('Network behavior:', behavior); } }; fetchUserData(); ``` Iโ€™ve added a specific check for the response using `response.ok`, but it seems to be bypassing that logic when the server returns a 429 status. Iโ€™d like to handle this case specifically and show a user-friendly message when this happens. Is there a way to access the status code and handle it differently without losing the current behavior handling flow? Should I check the response status before trying to parse it as JSON? Any suggestions would be really helpful, as Iโ€™m unsure how to proceed with this! I'm using Node.js v16.x and the Fetch API in a React application. This is part of a larger CLI tool I'm building. What's the best practice here? My team is using Javascript for this service. This is part of a larger application I'm building. I'd really appreciate any guidance on this.