I want to log to elasticsearch using serilog.

I have added Elastic.Serilog.Sinks package to my application.
But there is no way to pass username and password while configuring serilog elasticsearch config.

My assumption is that I would need to pass log index name, url, username, password while configuring serilog with elasticsearch sink.

https://www.elastic.co/guide/en/ecs-logging/dotnet/current/serilog-data-shipper.html

Above url has example to configure using url. Also, there is no index name.

Is log index name and data stream name same ?

How to pass username and password while configuring serilog elasticsearch configuration ?