Now accepting design partners

RSpond makes Spring
observable. functional. modern.

RSpond brings structured error handling, functional design, and runtime observability to your Java Spring applications.

Why RSpond Quickstart →
OrderService.java
public class OrderService {
    private OrderGateway gateway = ...
    public Optional<Receipt> process(StatusHandler handler, Order order) {
        return handler.tryCatch(() -> gateway.submit(order), "Order submit failed");
    }
}

What makes RSpond structured error handling different:
  • Callers determine behavior when something goes wrong—whether information is captured, forwarded, thrown, or returned
  • Callers immediately know how an API handles errors if it does structured error handling
  • Callers can easily control exceptions and program flow without ceremony
  • Code writers do not need to make error handling decisions

What RSpond can do

Each crosscut works independently inside your Spring application. Use one or adopt them all—at your own pace.

Structured Errors

Error handling that eliminates try-catch ceremony with structured, observable pipelines.

Crosscuts

Cross-cutting functionality for conversions, validation, and resource access. Mix and match freely.

Observability

Real-time visibility into every component and every error in your live application. Not crash-time forensics in a log aggregator.

Spring Compatible

Spring extensions to use alongside Spring Boot with zero migration required.

Level up your Spring™ code

With RSpond, its easy to get structured error handling flowing through your services. You get runtime visibility, and everything stays in Java—no context-switching to external, offline tools to understand what your code is doing.

Already running Spring Boot? Try our quickstart guide.

“
Spring are the good guys—they’ve contributed a lot to open source. We just have some new ways to do things, and we think some people will like them.
Jonathan Locke · Co-founder & Engineering Lead, RSpond

Become a design partner

We’re working with teams of 2–16 developers on modernization and greenfield projects.

Apply now →

Read the documentation

Quickstart guides, API reference, and crosscut tutorials to get you building in minutes.

View docs →

Join the community

RSpond is open source. Contribute, discuss, and shape the future of the framework.

rspond.org →