Sync
You can use Couchbase Edge Server to sync data in the following ways:
Remote Upstream Sync with App Services / Sync Gateway
Read and write data or listen for data changes from Edge Server over a RESTful interface from any HTTP client.
Sync at the Edge with Couchbase Lite
Allow downstream Couchbase Lite applications at the edge to sync data with Edge Server.
Edge to Edge Sync
Use a secondary Edge Server as backup for High Availability or to keep multiple Edge Servers in sync with each other.