415
4xx Client ErrorUnsupported Media Type
The request's media format isn't supported by the server.
415 Unsupported Media Type means the server rejected the body's format - usually a Content-Type mismatch. Sending JSON without `Content-Type: application/json`, or sending a format the endpoint doesn't accept, both trigger it.
About 4xx Client Error
The request has a problem the client needs to fix, like a bad URL, missing auth, or invalid input.
How to fix 415 Unsupported Media Type
- Set the Content-Type header to match the body you're sending.
- Confirm the endpoint accepts that format (e.g. JSON vs form data).
- Check for typos like `application/json; charset` issues.