We want to migrate from native mongoDB to Azure-hosted cosmosDB. While creating collections we see a field "shard key" which is mandatory, but currently our mongo DB set-up does not support sharding. Is it possible to migrate to cosmos without enabling sharding and with only minimal changes in our application?
I guess the cosmos UI behaves weirdly. When I try to create a new collection by clicking on the ellipses button on a DB or choose existing DB, it doesn't provide the option to create collection without supplying shard key.