File Upload in a folder in Assignment

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I am using below API for file upload. /d2l/api/le/(version)/(orgUnitId)/dropbox/folders/(folderId)/submissions/mysubmissions

 

And for the authentication, I use  ID/Key-based authentication system with my super user account.

 

The issue is that, whenever I upload a file, the file is always under the name of super user account.

Is there a way to create a folder and upload the file there or upload the file under the name of logged in user's name

 

Thanks,