Swiggy API Not Working in Your React App? Here's the Fix
When the Swiggy API stops working in your React app, the fix is usually one of a few common causes. Here is how to diagnose and resolve it.
Swiggy API Not Working in Your React App? Here's the Fix
When the Swiggy API suddenly stops working in your React project, it is almost always one of a few common causes. Here is how to diagnose and resolve it quickly.
Check the Endpoint First
The most common cause is a changed or deprecated endpoint. Verify the URL you are calling still exists and returns data by opening it in a browser or a tool like Postman.
Look for CORS Errors
Open your browser console. If you see a CORS error, the API is blocking your origin. This is the most common cause when a Swiggy-like API fails in a React app, and it has a known fix.
Check the Response Status
A 200 response does not mean success if the body shape changed. Log the full response and confirm the data structure matches what your code expects.
Handle Rate Limiting
If the API returns 429 or blocks repeated requests, you are being rate-limited. Cache responses and reduce the frequency of calls.
Verify Your Network
Some networks or VPNs block certain domains. If the API works on mobile data but not your Wi-Fi, your network is the issue.
Use a Proxy in Development
For CORS during development, use a proxy in your bundler config or a small backend proxy. This bypasses browser CORS restrictions locally.
The Takeaway
When the Swiggy API fails, check the endpoint, look for CORS errors, verify the response shape, handle rate limiting, and rule out your network. One of these is almost always the cause.
It is usually one of a few causes: a changed or deprecated endpoint, a CORS error, a changed response shape, rate limiting, or your network blocking the domain. Diagnose in that order to find the cause quickly.
Open the endpoint URL directly in a browser or a tool like Postman. If it returns an error or no data, the endpoint may have changed or been deprecated. Verify against the latest API documentation.
Use a proxy during development, either in your bundler config or through a small backend proxy. The proxy forwards the request server-side, bypassing the browser's CORS restrictions for local development.
Because the response body shape likely changed. A 200 status means the request succeeded, but the data structure may differ from what your code expects. Log the full response and update your parsing to match.
Cache responses so you do not re-request the same data, and reduce the frequency of calls. If the API returns 429 or blocks repeated requests, you are being rate-limited and need to call it less often.
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