Connection between two databases in the same cluster

Working with Data
1

Hi everyone. I am new using Mongo Atlas and I have some questions.

Is it possible to transfer data between two databases in the same cluster. I have two databases called DOMUS-CLIENT and DOMUS-ADMIN, both have the collection User. When a new user is created in the DOMUS-ADMIN, I want that user to be also in the DOMUS-CLIENT database.

Thanks in advance

2

I think change stream can help.

See https://docs.mongodb.com/manual/changeStreams/