functions/Get-DbaXEStore.ps1

function Get-DbaXEStore {
    <#
        .SYNOPSIS
            Get a Extended Events store
 
        .DESCRIPTION
            Get a Extended Events store
 
       .PARAMETER SqlInstance
            Target SQL Server. You must have sysadmin access and server version must be SQL Server version 2008 or higher.
 
        .PARAMETER SqlCredential
            Allows you to login to servers using SQL Logins instead of Windows Authentication (AKA Integrated or Trusted). To use:
 
            $scred = Get-Credential, then pass $scred object to the -SqlCredential parameter.
 
            Windows Authentication will be used if SqlCredential is not specified. SQL Server does not accept Windows credentials being passed as credentials.
 
            To connect as a different Windows user, run PowerShell as that user.
 
        .PARAMETER EnableException
            By default, when something goes wrong we try to catch it, interpret it and give you a friendly warning message.
            This avoids overwhelming you with "sea of red" exceptions, but is inconvenient because it basically disables advanced scripting.
            Using this switch turns this "nice by default" feature off and enables you to catch exceptions with your own try/catch.
 
        .NOTES
            Website: https://dbatools.io
            Copyright: (C) Chrissy LeMaire, clemaire@gmail.com
            License: GNU GPL v3 https://opensource.org/licenses/GPL-3.0
 
        .LINK
            https://dbatools.io/Get-DbaXEStore
 
        .EXAMPLE
            Get-DbaXEStore -SqlInstance ServerA\sql987
 
            Returns an XEvent Store.
 
    #>

    [CmdletBinding()]
    param (
        [parameter(Mandatory, ValueFromPipeline)]
        [Alias("ServerInstance", "SqlServer")]
        [DbaInstanceParameter[]]$SqlInstance,
        [PSCredential]$SqlCredential,
        [switch]$EnableException
    )

    process {
        foreach ($instance in $SqlInstance) {
            try {
                Write-Message -Level Verbose -Message "Connecting to $instance."
                $server = Connect-SqlInstance -SqlInstance $instance -SqlCredential $SqlCredential -MinimumVersion 11
            }
            catch {
                Stop-Function -Message "Failure" -Category ConnectionError -ErrorRecord $_ -Target $instance -Continue
            }

            $SqlConn = $server.ConnectionContext.SqlConnectionObject
            $SqlStoreConnection = New-Object Microsoft.SqlServer.Management.Sdk.Sfc.SqlStoreConnection $SqlConn
            $store = New-Object  Microsoft.SqlServer.Management.XEvent.XEStore $SqlStoreConnection

            Add-Member -Force -InputObject $store -MemberType NoteProperty -Name ComputerName -Value $server.NetName
            Add-Member -Force -InputObject $store -MemberType NoteProperty -Name InstanceName -Value $server.ServiceName
            Add-Member -Force -InputObject $store -MemberType NoteProperty -Name SqlInstance -Value $server.DomainInstanceName
            Select-DefaultView -InputObject $store -Property ComputerName, InstanceName, SqlInstance, ServerName, Sessions, Packages, RunningSessionCount
        }
    }
}