spacetimedb-concepts

SpacetimeDB uses a database-as-server model where the database itself acts as the backend server. Clients subscribe directly to database tables, and business logic runs inside the database through reducers, eliminating traditional backend middleware for real-time apps.

Subscriptions drive real-time data flow by pushing table updates to subscribed clients automatically. Reducers handle state mutations by executing server-side logic, ensuring subscribed clients receive updates without manual polling or custom event broadcasting.

You should adopt a backendless paradigm like SpacetimeDB for building real-time collaborative tools, rapid prototypes, and internal tooling. It fits scenarios requiring synchronized state across clients without maintaining separate backend API infrastructure.

Yes, SpacetimeDB fits real-time apps and rapid prototyping scenarios well. Its subscription-driven data flow and identity management provide the necessary infrastructure for collaborative tools without building custom backend synchronization logic.

The core concepts needed to learn SpacetimeDB are Tables for data storage, Reducers for logic, Subscriptions for real-time updates, Identity for user management, and Modules for deployment. These elements define the architecture's data flow and integration model.