Introducing nestarc
We're excited to introduce nestarc — a collection of production-ready NestJS modules designed specifically for SaaS backends.
Why nestarc?
Building a multi-tenant SaaS application with NestJS requires solving the same set of cross-cutting concerns every time:
- Tenant isolation — ensuring data doesn't leak between tenants
- Audit logging — tracking who changed what and when
- Feature flags — rolling out features gradually
- Soft deletes — safely removing data without losing it
- Pagination — handling large datasets efficiently
- Response standardization — consistent API contracts
Each of these is well-understood, but implementing them correctly takes significant effort. nestarc packages these solutions into composable, well-tested modules that work together.
The Stack
All nestarc packages share a common foundation:
- NestJS 10/11 for the application framework
- Prisma 5/6 for type-safe database access
- PostgreSQL for the database layer
- TypeScript end-to-end
Packages compose via Prisma Client Extensions, so you can combine @nestarc/tenancy, @nestarc/soft-delete, and @nestarc/audit-log in a single Prisma client chain.
What's Available
| Package | Version | Description |
|---|---|---|
@nestarc/tenancy | 0.8.0 | PostgreSQL RLS + Prisma multi-tenancy |
@nestarc/safe-response | 0.13.1 | API response wrapper with Swagger |
@nestarc/audit-log | 0.1.0 | Automatic CUD change tracking |
@nestarc/feature-flag | 0.2.0 | DB-based feature flags |
@nestarc/soft-delete | 0.2.0 | Prisma soft-delete extension |
@nestarc/pagination | 0.1.0 | Cursor + offset pagination |
@nestarc/idempotency | 0.1.3 | IETF-style idempotency with response replay |
@nestarc/outbox | 0.1.0 | Transactional outbox for reliable domain events |
@nestarc/webhook | 0.2.0 | Outbound webhook delivery with signing and retry |
@nestarc/api-keys | 0.1.0 | Tenant-scoped API keys with scoped guards |
@nestarc/data-subject | 0.1.0 | GDPR/CCPA export and erase workflows |
@nestarc/jobs | 0.1.0 | Tenant-aware background jobs |
Get Started
- Getting Started — set up your first multi-tenant API in 5 minutes
- Example: SaaS API — 7 core packages in one project
- Adoption Roadmap — recommended adoption path for first-time users
- GitHub — all packages are open source (MIT)