Current implementation of LoggingResponseDecorator may log uninitialized headers

During instantiation of the LoggingResponseDecorator, you are logging the headers of the response.

kotlin-tutorials/spring-reactive-kotlin/src/main/kotlin/com/baeldung/logfilter/decorator/LoggingResponseDecorator.kt

Line 29 in 5368ede

log.debug("{}", delegate.headers.asString())

At that point the headers may not be initialized or fully committed. Besides, if I wanted to log the status code of the response, that would also be undefined at that stage. I have only tested this on the Java version of this code, but invoking the beforeCommit delegate method worked for me:

public LoggingResponseDecorator(ServerHttpResponse delegate) {
    super(delegate);
    beforeCommit(() -> Mono.fromRunnable(() -> {
        if (log.isDebugEnabled()) {
            log.debug("{} {}", getStatusCode(), getHeaders());
        }
    }));
}

Sorry to create an issue of this, but the blog entry has the comments disabled.

Thanks for the feedback @ygreyeb. We'll take a look into this.

We fixed the code and updated the article @ygreyeb.