How to log using serilog to elasticsearch with Elastic.Serilog.Sinks in .net application

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 ?

You could install Elastic.Clients.Elasticsearch and try this

var settings = new ElasticsearchClientSettings(new Uri("https://10.96.5.5:9200"))
        .CertificateFingerprint("xxx")
        .Authentication(new BasicAuthentication("elastic", "xxx"));

var esClient = new ElasticsearchClient(settings);

var esOptions = new ElasticsearchSinkOptions(esClient.Transport)
{
    BootstrapMethod = BootstrapMethod.Failure,
};

Log.Logger = new LoggerConfiguration()
    .WriteTo.Elasticsearch(esOptions)
    .CreateLogger();

Or this:

Log.Logger = new LoggerConfiguration()
 .WriteTo.Elasticsearch([new Uri("https://10.96.5.5:9200")], opts =>
 {
     opts.BootstrapMethod = BootstrapMethod.Failure;
 }, transport =>
 {
     transport.CertificateFingerprint("xxx");
     transport.Authentication(new BasicAuthentication("elastic", "xxx"));
 })
 .CreateLogger();