HTTP 200 is UNKNOWN in actuator metrics

[bytestreme]

Spring Boot 3.3.3
Armeria 1.29.0

Looks like there is an issue with setting http status code because when org.springframework.http.server.reactive.observation.DefaultServerRequestObservationConvention calls context.getResponse().getStatusCode(), ArmeriaServerHttpResponse returns null

[bytestreme]

Using also com.linecorp.armeria:armeria-spring-boot3-webflux-starter:1.29.0

[jrhee17]

Hi, there's actually a ObservationConvention defined for Armeria DefaultServiceObservationConvention which can be enabled via ObservationService.

Having said this, let me look into why Spring's integration doesn't work for Armeria in the next working days

[jrhee17]

I found a bug in armeria's implementation which doesn't return the correct status code - I'll try to get this merged in the next milestone 🙏