ECS structure logging is not removing the nested keys

[durgaprasad-akshinthala]

It is nice that spring boot introduced the nested logging with 3.5.0.
Ref : #45063

We actually started going for custom implementation of structured logging to have nested format; but since it is going to be introduced in 3.5.0; we can rely on default implementation.

I tested the nested logging with below format and works with out any issues.

MDC.put("error_details.error_type", "MethodArgumentNotValidException");
MDC.put("error_details.error_code", "10200");
MDC.put("error_details.error_message", "Test error");
MDC.put("error_details.error_description", "Error occurred due to field violation");

How ever; if I do not want "error_details" for further logs in the same request; I need to remove the individual keys separately like below.

MDC.remove("error_details.error_type");
MDC.remove("error_details.error_code");
MDC.remove("error_details.error_message");
MDC.remove("error_details.error_description");

Imagine if I have more than 10 keys(or may be more); it is cumbersome to remove all those keys from MDC separately.
It would be nice; to have some thing like below; which will delete all sub keys under "error_details"

MDC.remove("error_details");

Can you please check this.

Tested with Spring Boot 3.5.0-RC1.

[philwebb]

We don't have a way to do this out of the box. The MVC class isn't part of Spring Boot, so we can't change that API. The best suggestion I have for you is to develop your own JsonWriterStructuredLogFormatter implementation based on ours and update the way that contextPairs are written. Perhaps you could do MDC.put("filter_error_details", true) and use that signal to filter all error_details.