Newbie: Create Folder / Add file from Cloud apps to Dropbox via API

To get started, we recommend using one of the official SDKs, if one is available for your platform:

https://www.dropbox.com/developers/documentation

Each one comes with documentation and a getting started guide.

Alternatively, you can use a third party library:

https://www.dropbox.com/developers/documentation/communitysdks

Or, you can use the HTTP endpoints themselves:

https://www.dropbox.com/developers/documentation/http/documentation

For example, to create folders you would use the /2/files/create_folder_v2 endpoint:

https://www.dropbox.com/developers/documentation/http/documentation#files-create_folder_v2

And to upload files, you can use /2/files/upload:

https://www.dropbox.com/developers/documentation/http/documentation#files-upload

There are corresponding methods in the SDKs.

Also, the OAuth guide is a good reference for understanding how the app authorization process works:

https://www.dropbox.com/developers/reference/oauth-guide