ComplexElasticClient.ps1

# Create a connection pool
$Pool = New-ConnectionPool -Nodes @('http://test1:9200','http://test2:9200') -Sniffing

# Create a connection configuration from the pool
$Config = New-ConnectionConfiguration -Pool $Pool

# Tweak the configuration
$Config.SetBasicAuthentication('username','password')
$Config.SetProxy('http://myproxy:8080','username','password')

# Create a client from the configuration
$Client = New-ElasticClient -Configuration $Config