SqlPlatform

Exports `SqlPlatform`, `layerSqlPlatform`.

Source: packages/paykit/src/Store/SqlPlatform.ts

SqlPlatform

Kind: Primitive

Host a model on SQL: every aggregate, view, policy, projection and stream gets its rows in the same billing_* schema, and billing_event is the only truth.

The platform keeps every consumer across deploys, so it also owns their history. start catches up each view and projection that is new — or whose declared version (its generation) changed — from the event log. A view keyed by the one aggregate it reads is filled by each key on first touch instead (Domain’s catchUp), so a version bump does not need a long deploy-time scan. The generation is recorded in billing_rm_backfill, so a restart skips a completed consumer and a changed plan without a version bump fails the build instead of silently reading the wrong history.

Hosting paykit on SQLite

const log = Paykit.SqlEventLog(sql, { now: () => Date.now() });
const { platform } = Paykit.SqlPlatform(sql, log, { now: () => Date.now() });
const world = Paykit.Model.layer(Paykit.ModelHandlers).pipe(
  Layer.provide(Layer.succeed(Domain.Platform, platform)),
);

layerSqlPlatform

Kind: Layer

The platform as a Layer, merged with the log so a binding can read it.