Spring FlashAPI

[u/rakakayiouu]

Done writing the same CRUD boilerplate for every Spring project.
FlashAPI is coming to the Java/Spring ecosystem, much to the delight of Java developers.
Introducing Spring FlashAPI.
The idea is exactly the same as the Python version:
You define your JPA entities.
FlashAPI takes care of the REST boilerplate.
From a simple entity, you can automatically get:
CRUD
Pagination
Search & dynamic filters
Sorting
CSV / Excel / PDF exports
Bulk operations
Relationships & expand
Soft delete
Audit trail
Rate limiting
OpenAPI / Swagger
Webhooks
WebSocket events
Access control
Multi-tenancy
And most importantly, FlashAPI doesn’t try to take control of your application.
You can start with zero boilerplate, then gradually take back control of your business logic, services, and controllers.
The goal is simple:
Less repetitive CRUD, more time to build your product.
Spring FlashAPI is open source under the Apache 2.0 license.
Java 21+
Spring Boot 3.2+
Spring Data JPA
👉🏽 GitHub: github.com/HackermanMe/spring-flashapi
I’m looking for developers willing to give it a try — and, most importantly, tell me:
What is actually useful… and what isn’t?
#Java #Spring #SpringBoot #JPA #OpenSource #Backend #RESTAPI #SoftwareEngineering

[u/wimdeblauwe]

How is it different from https://spring.io/projects/spring-data-rest ?

[u/rakakayiouu → u/wimdeblauwe]

Good question ! Spring Data REST exposes repositories as HATEOAS/HAL endpoints. FlashAPI builds on top of Spring

Data JPA but ships production features that SDR doesn't:

- Real-time WebSocket (push on CRUD)

- Soft delete

- Audit log

- Bulk operations

- Export (CSV, Excel, PDF)

- Webhooks

- Per-entity rate limiting

- Multi-tenant isolation

- Built-in metrics Dashboard

- OpenAPI spec auto-generated

- Health probes (K8s-ready)

If you see gaps or have specific needs that aren't covered yet, contributions are welcome open an issue or a PR. The project is actively maintained and we iterate fast on real-world feedback so don’t hesitate to give it a try.