Troubleshooting API integration issues after deploying React app to Netlify

Other Questions RapidAPI
1

Hey everyone, I’m hitting a snag with my React project. It was smooth sailing on my local setup, but things went south when I pushed it to Netlify. Now I’m getting this weird error saying ‘e.slice is not a function’.

When I dug deeper, I noticed the network tab in dev tools showed a 403 response from the API, claiming I’m not subscribed. But I swear it was working fine before!

Here’s a snippet of how I’m setting up the API calls:

const apiConfig = {
  method: 'GET',
  headers: {
    'API-Key': import.meta.env.VITE_API_KEY,
    'API-Host': 'myapi.example.com'
  }
};

async function fetchStuff(endpoint) {
  const response = await fetch(endpoint, apiConfig);
  return response.json();
}

Any ideas why it’s acting up on Netlify but not locally? I’m using Vite for the build if that matters. Thanks in advance for any help!

2

Have you considered the possibility of CORS issues? When moving from local to production, cross-origin requests can sometimes become problematic. Netlify might be enforcing stricter security policies.

Try adding the ‘mode: ‘cors’’ option to your fetch request:

const apiConfig = {
  method: 'GET',
  mode: 'cors',
  headers: {
    'API-Key': import.meta.env.VITE_API_KEY,
    'API-Host': 'myapi.example.com'
  }
};

Also, ensure your API is configured to accept requests from your Netlify domain. You might need to whitelist it in your API’s CORS settings.

If that doesn’t work, consider using a proxy on Netlify to route your API requests. This can often circumvent CORS issues. You can set this up in your netlify.toml file.

3

hey dude, had a simlar problem. check netlify build logs; sometimes env vars arent set well. double-check ur api key on netlify dashboard. if that fails, consider using process.env instead of import.meta.env. hope it helps!

4

I’ve encountered similar issues when deploying React apps to Netlify, especially with API integrations. From your description, it sounds like an environment variable problem.

When you’re running locally, Vite automatically loads your .env file, but Netlify doesn’t have access to it after deployment. You need to manually add your environment variables in Netlify’s dashboard.

Go to your site settings in Netlify, find the ‘Environment’ section, and add your VITE_API_KEY there. Make sure the variable name matches exactly what you have in your local .env file.

Also, double-check that your API key is still valid and that your subscription hasn’t expired. Sometimes API providers rotate keys or have usage limits that can cause unexpected 403 errors.

If you’ve done all that and it’s still not working, try prefixing your environment variables with VITE_ in your code. Vite requires this for security reasons when exposing variables to the client-side code.

Let me know if this helps or if you need more troubleshooting steps!