# Micronaut Reactive

> Reactive types, HTTP clients, and non-blocking patterns.

- Skill: `ngxtm-devkit/micronaut-reactive` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add ngxtm-devkit/micronaut-reactive`
- Raw SKILL.md: https://api.skillmd.com/api/skills/ngxtm-devkit/micronaut-reactive/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: ngxtm (https://skillmd.com/u/ngxtm-devkit)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/ngxtm-devkit/micronaut-reactive

---


# Micronaut Reactive Standards

## Reactive Controllers

```java
@Controller("/users")
public class UserController {

    @Get("/{id}")
    public Mono<User> findById(Long id) {
        return userService.findById(id);
    }

    @Get(produces = MediaType.TEXT_EVENT_STREAM)
    public Flux<User> stream() {
        return userService.streamAll();
    }
}
```

## Declarative HTTP Client

```java
@Client("order-service")
public interface OrderClient {

    @Get("/orders/{userId}")
    Flux<Order> getOrders(Long userId);

    @Post("/orders")
    Mono<Order> createOrder(@Body CreateOrderRequest request);
}
```

## Low-Level Client

```java
@Singleton
public class ExternalApiService {

    private final HttpClient httpClient;

    public ExternalApiService(@Client("https://api.external.com") HttpClient httpClient) {
        this.httpClient = httpClient;
    }

    public Mono<ExternalData> fetchData(String id) {
        return Mono.from(httpClient.retrieve(
            HttpRequest.GET("/data/" + id),
            ExternalData.class
        ));
    }
}
```

## References

- [HTTP Client Patterns](references/http-client-patterns.md) - Retry, fallback, timeout