Specify the Description, Directory, App Key, App secret and Refresh Token.
To set the Refresh Token, click on "Request Refresh Token". A dialog will be displayed where you can request a code. Copy the generated code into the clipboard and return to the dialog. Paste the copied code into the input field. The code will be converted into a Refresh Token.
For the App Key and App secret you need a valid Dropbox account and must provide access to Dropbox via the Dropbox App Console.
Create an OAuth 2.0 Application in Dropbox:
1. Open https://www.dropbox.com/developers/apps (App Console), go to the "My apps" tab and create a Dropbox Application by clicking "Create app" on top right of the page.
2. On the next page choose "Dropbox API" option and then the "Full Dropbox" option and a name for our app and then click on the "Create app" button.
3. On next page the "App key" is the OAuth client Id and the "App secret" is the OAuth client secret.