What is a folder_id andshared_folder_id and parent_shared_folder_id ? If I move a file from my account to another users account will the folder_id get changed ?
There isn't a property named just "folder_id" for Dropbox files or folders. Perhaps you meant just "id"?
In any case, you can find documentation for all of the Metadata properties in the documentation, e.g., under the Metadata types documented as the return type of /2/files/get_metadata:
https://www.dropbox.com/developers/documentation/http/documentation#files-get_metadata
Shared folder IDs are consistent across different accounts. Likewise, users will see the same file IDs for files inside the shared folders.
OK. Also if i upload a file in a shared folder, who owns the file. Me or the owner of the folder ?