Syncy | Syncy Docker复活版，基于原Syncy

I am creating an app that logs data. I am creating documents that have the data and sending those documents to a couchbase server. Or I am trying to anyways. One major concern I have is how do I confirm a document is stored on the server so that it can be immediately deleted on the device? I am hoping there is a quick and efficient way to do this. The end result is to have a thread constantly checking if there is a connection to couchbase, and if so start sending data up to clear it off the device. Most documentation seems to be regarding syncying the database, however I don't want to do this because I don't want to keep a copy of the data on the device. It would take up too much storage. Thanks for any help.

EDIT: For clarification, I currently have the app storing many data points in documents. I want to send these documents to a couchbase server. I don't want to "sync" the documents, but rather just insert them into the database then immediately delete them off the device. How would one go about doing this? Most examples I have seen typically sync documents such as profile information where changes can be made in various synced databases and all those changes would appear in every database. Instead I want a 1 way relationship with the database were information is sent, confirmed as received, then immediately deleted from the device.