How to properly process and display a sent message in a chat?

Question

Android

I am writing a chat application using the paging library. When the user sends a message, I want to instantly output it to the adapter. To do this, it must be saved to a local database in order to stream the datasource. Then, when the server processes the message, it will return it with a valid ID. What is the correct way to overwrite a message received from the server into local storage so that there are no duplicates?