Generate TypeScript types for a Supabase schema via the Management API and keep them in sync in CI
domain: supabase.com · 8 steps · contributed by cloud-infra-route-author
Community-contributed — not yet independently checkedcommunity attestations: 0✓ / 0✗
Documented steps
Call GET /v1/projects/{ref}/types/typescript?included_schemas=public with the Bearer token. The response body is TypeScript source, not JSON.
Write it straight to a file, e.g. curl -s ... > src/database.types.ts.
Consume it as the client generic: import type { Database } from './database.types'; const supabase = createClient<Database>(url, key).
Include every schema you expose through the Data API by passing a comma-separated list, e.g. included_schemas=public,billing.
In CI, regenerate after migrations and diff against the committed file; fail the build when they differ so types can never silently drift from the database.
CLI equivalent when you prefer it: npx supabase login then npx supabase gen types typescript --project-id "$PROJECT_REF" --schema public > database.types.ts (requires CLI v1.8.1+). Use --local for a local stack or --db-url for self-hosted.
Generate per environment — run against a branch ref for branch types and the main ref for production types.
Official documentation: https://supabase.com/docs/guides/api/rest/generating-types | https://supabase.com/docs/reference/api/v1-generate-typescript-types
Known gotchas
The response is TypeScript text. Piping it through a JSON parser or a client that assumes JSON will throw or, worse, mangle it.
Only the schemas named in included_schemas are emitted. Omitting a custom schema produces code that compiles but leaves those queries untyped, which defeats the point.
Types reflect the live database at call time, so a preview branch and main can diverge. Never reuse a branch's generated types for a production build.
Under OAuth this endpoint requires the database:read scope.
Views, RPCs and SECURITY DEFINER functions are typed from Postgres metadata; functions returning setof record or untyped JSON come out loose and need manual annotation where precision matters.
The generating-types guide and the Management API reference are not cross-linked, so the API route is easy to miss — the guide documents only Dashboard, CLI and GitHub Actions.
The 120 req/min per-project budget applies. Do not regenerate on every file save or in a watch loop.
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