{ "msg_timestamp": { "$resolver": "timestamp", "pattern": { "format": "yyyy-MM-dd HH:mm:ss.SSSZ" } }, "level": { "$resolver": "level", "field": "name" }, "requestId": { "$resolver": "mdc", "key": "requestId" }, "logger": { "$resolver": "logger", "field": "name" }, "mdc":{ "$resolver": "mdc", "flatten": false, "stringified": false }, "message": { "$resolver": "message", "stringified": true }, "exception": { "exception_class": { "$resolver": "exception", "field": "className" }, "exception_message": { "$resolver": "exception", "field": "message" }, "stacktrace": { "$resolver": "exception", "field": "stackTrace", "stackTrace": { "stringified": true } } } }