Effect

LiveStore itself is built on top of Effect which is a powerful library to write production-grade TypeScript code. It’s also possible (and recommended) to use Effect directly in your application code.

Schema

LiveStore uses the Effect Schema library to define schemas for the following:

• Read model table column definitions
• Event event payloads definitions
• Query response types

For convenience, LiveStore re-exports the Schema module from the effect package, which is the same as if you’d import it via import { Schema } from 'effect' directly.

Example

import { Schema } from '@livestore/livestore'

// which is equivalent to (if you have `effect` as a dependency)
import { Schema } from 'effect'

Equal and Hash Traits

LiveStore’s reactive primitives (LiveQueryDef and SignalDef) implement Effect’s Equal and Hash traits, enabling efficient integration with Effect’s data structures and collections.