I have a web-app that processes images and uploads them to a single dropbox folder (My account). I have an App for my web app in dropbox and I am successfully able to upload images to said folder.
The access tokens to the folder expire every four hours, and I am having trouble understanding the OAuth options that will work in my case. It would seem that most options to acquire a new access token requires user input which should not be required if I all I am doing is uploading images.
I have tried using oauth2/token but this requires an authorization code that is limited to one use and will not work in my case.
I simply need an access token to my dropbox account that I can refresh whenever the old token has expired. Any direction would be helpful as I am lost.