Index format change daily to weekly

[NAHA]

Hi ,

I am currently send logs from NLog to Elasticsearch.
So , my index format default seems like this - > " logstash-yyyy.MM.dd"
I want to change to weekly ,

My Nlog config file like this:

  <target xsi:type="ElasticSearch" 
          index = "logstash-${date:format=yyyy.MM.dd}"
          layout="${logger} | ${threadid} | ${message}" 
          uri="http://localhost:9200" 
          includeAllProperties ="true">
   </target>

I tried add index like this :

index = "logstash-${date:format=xxxx.ww}"

But nothing happened.

[warkolm (Mark Walkom)]

This seems like an nlog problem not translating that time format, I am not sure if we can help here sorry!