📄️ Query Language & Data Retrieval
How to retrieve single objects and collections using the PlayServ LINQ-like query language — Where, With, nested relations, and server-side translation.
📄️ Data Subscriptions & Live Updates
How to subscribe to live data updates in PlayServ — initial payload, reactive deltas, JSONPatch optimisation, and subscription restoration.
📄️ Data Mutation & Model Extending
How to persist data changes in PlayServ using Update and Delete, and how to extend models with domain behaviour as RPC methods.