POST v3/metadata/doc/upload
| Code | Message | HTTP Status |
|---|---|---|
| 1020 | Invalid file format/empty file, please provide a valid file_name | 400 |
| 1100 | Unsupported file type. Please upload a valid file. | 400 |
| 1101 | Empty or Invalid file name. Please provide a valid file name. | 400 |