logstash check if field exists
To check if field foo exists: 1) For numeric type fields use: if ([foo]) { … } 2) For types other than numeric like boolean, string use: if (“” in [foo]) { … }
To check if field foo exists: 1) For numeric type fields use: if ([foo]) { … } 2) For types other than numeric like boolean, string use: if (“” in [foo]) { … }