Can my web app upload directly to Code Buckets from the browser?

The API allows cross-origin requests, but never put a clsk_ key in front-end code: anyone could read it and use your buckets.

Instead:

1. The browser sends the file to your backend.
2. Your backend uploads it to Code Buckets with the key (one request for files up to 4 MiB, chunked for larger).
3. Your backend returns the public_url (if public) or the object id.

Learn more#

• Code Buckets API
• Errors