loggerLevel > NONE not working on partial request (206)

[bananaspliff]

the bug appear only if you have a specific logger in DEBUG like this :

@Component
public class FeignLogger extends Logger {

	@Override
	protected Response logAndRebufferResponse(String configKey, Level logLevel, Response response, long elapsedTime) {
		// NOOP
		return response;
	}

	@Override
	protected void log(String configKey, String format, Object... args) {
		// NOOP
	}

	@Bean
	public Level defaultFeignLogger() {
		return BASIC;
	}

}

DEBUG XXX.26 - exiting logAndRebufferResponse with result HTTP/1.1 206 Partial Content
content-type: application/json;charset=utf-8
server: Jetty(9.4.24.v20191120)
transfer-encoding: chunked
feign.Response$InputStreamBody@71ace013 .  
16:30:07.301 [main] DEBUG XXX.FeignLogger:63 - [XXX] <--- ERROR IOException: stream is closed (227ms)

works with Feign 10.1 and not working with Feign 10.4

[kdavisk6]

This is because the logger you have implemented violates the Logger contract. The method logAndRebufferResponse expects that the Response returns contains an InputStream that can be read again. This is required since logAndRebufferResponse is called before the Response is processed.

Please refer to the default Logger implementation for an example.

[bananaspliff]

oh my bad ! there is a code that displays the whole object with aspect !