RxRealm

The Realm Database Swift SDK enables mobile applications to access data stored in local realms. Optionally, interact with App Services features such as Functions, MongoDB Data Access, and authentication. The Realm Swift SDK supports Swift and Objective-C and provides SwiftUI-friendly property wrappers. With the Realm Swift SDK, you can access objects stored in a local instance of Realm Database. Create a new object as you would instantiate any other object. Then, pass it to Realm Database inside a write transaction. Update objects by updating field values on an instance of the object within a transaction. Register a notification handler on an entire realm, a collection, or an object, and react to changes. Because Realm Database objects are live objects, they're automatically updated when they're modified.