functions/Copy-DbaEndpoint.ps1

function Copy-DbaEndpoint {
    <#
        .SYNOPSIS
            Copy-DbaEndpoint migrates server endpoints from one SQL Server to another.
 
        .DESCRIPTION
            By default, all endpoints are copied.
 
            If the endpoint already exists on the destination, it will be skipped unless -Force is used.
 
        .PARAMETER Source
            Source SQL Server. You must have sysadmin access and server version must be SQL Server version 2000 or higher.
 
        .PARAMETER SourceSqlCredential
            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 -SourceSqlCredential parameter.
 
            Windows Authentication will be used if SourceSqlCredential 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 Destination
            Destination SQL Server. You must have sysadmin access and the server must be SQL Server 2000 or higher.
 
        .PARAMETER DestinationSqlCredential
            Allows you to login to servers using SQL Logins instead of Windows Authentication (AKA Integrated or Trusted). To use:
 
            $dcred = Get-Credential, then pass this $dcred to the -DestinationSqlCredential parameter.
 
            Windows Authentication will be used if DestinationSqlCredential 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 Endpoint
            The endpoint(s) to process. This list is auto-populated from the server. If unspecified, all endpoints will be processed.
 
        .PARAMETER ExcludeEndpoint
            The endpoint(s) to exclude. This list is auto-populated from the server.
 
        .PARAMETER WhatIf
            If this switch is enabled, no actions are performed but informational messages will be displayed that explain what would happen if the command were to run.
 
        .PARAMETER Confirm
            If this switch is enabled, you will be prompted for confirmation before executing any operations that change state.
 
        .PARAMETER Silent
            If this switch is enabled, the internal messaging functions will be silenced.
 
        .PARAMETER Force
            If this switch is enabled, existing endpoints on Destination with matching names from Source will be dropped.
             
        .NOTES
            Tags: Migration, Endpoint
            Author: Chrissy LeMaire (@cl), netnerds.net
            Requires: sysadmin access on SQL Servers
 
            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/Copy-DbaEndpoint
 
        .EXAMPLE
            Copy-DbaEndpoint -Source sqlserver2014a -Destination sqlcluster
 
            Copies all server endpoints from sqlserver2014a to sqlcluster, using Windows credentials. If endpoints with the same name exist on sqlcluster, they will be skipped.
 
        .EXAMPLE
            Copy-DbaEndpoint -Source sqlserver2014a -SourceSqlCredential $cred -Destination sqlcluster -Endpoint tg_noDbDrop -Force
 
            Copies only the tg_noDbDrop endpoint from sqlserver2014a to sqlcluster using SQL credentials for sqlserver2014a and Windows credentials for sqlcluster. If an endpoint with the same name exists on sqlcluster, it will be dropped and recreated because -Force was used.
 
        .EXAMPLE
            Copy-DbaEndpoint -Source sqlserver2014a -Destination sqlcluster -WhatIf -Force
 
            Shows what would happen if the command were executed using force.
    #>

    [CmdletBinding(DefaultParameterSetName = "Default", SupportsShouldProcess = $true)]
    param (
        [parameter(Mandatory = $true)]
        [DbaInstanceParameter]$Source,
        [PSCredential]
        $SourceSqlCredential,
        [parameter(Mandatory = $true)]
        [DbaInstanceParameter]$Destination,
        [PSCredential]
        $DestinationSqlCredential,
        [object[]]$Endpoint,
        [object[]]$ExcludeEndpoint,
        [switch]$Force,
        [switch]$Silent
    )

    begin {

        $sourceServer = Connect-SqlInstance -SqlInstance $Source -SqlCredential $SourceSqlCredential
        $destServer = Connect-SqlInstance -SqlInstance $Destination -SqlCredential $DestinationSqlCredential

        $source = $sourceServer.DomainInstanceName
        $destination = $destServer.DomainInstanceName

        if ($sourceServer.VersionMajor -lt 9 -or $destServer.VersionMajor -lt 9) {
            throw "Server Endpoints are only supported in SQL Server 2008 and above. Quitting."
        }
    }
    process {

        $serverEndpoints = $sourceServer.Endpoints | Where-Object IsSystemObject -eq $false
        $destEndpoints = $destServer.Endpoints

        foreach ($currentEndpoint in $serverEndpoints) {
            $endpointName = $currentEndpoint.Name

            $copyEndpointStatus = [pscustomobject]@{
                SourceServer        = $sourceServer.Name
                DestinationServer   = $destServer.Name
                Name                = $endpointName
                Status              = $null
                DateTime            = [DbaDateTime](Get-Date)
            }

            if ($Endpoint -and $Endpoint -notcontains $endpointName -or $ExcludeEndpoint -contains $endpointName) {
                continue
            }

            if ($destEndpoints.Name -contains $endpointName) {
                if ($force -eq $false) {
                    $copyEndpointStatus.Status = "Skipped"
                    $copyEndpointStatus

                    Write-Message -Level Warning -Message "Server endpoint $endpointName exists at destination. Use -Force to drop and migrate."
                    continue
                }
                else {
                    if ($Pscmdlet.ShouldProcess($destination, "Dropping server endpoint $endpointName and recreating.")) {
                        try {
                            Write-Message -Level Verbose -Message "Dropping server endpoint $endpointName."
                            $destServer.Endpoints[$endpointName].Drop()
                        }
                        catch {
                            $copyEndpointStatus.Status = "Failed"
                            $copyEndpointStatus

                            Stop-Function -Message "Issue dropping server endpoint." -Target $endpointName -InnerErrorRecord $_ -Continue
                        }
                    }
                }
            }

            if ($Pscmdlet.ShouldProcess($destination, "Creating server endpoint $endpointName.")) {
                try {
                    Write-Message -Level Verbose -Message "Copying server endpoint $endpointName."
                    $destServer.Query($currentEndpoint.Script()) | Out-Null

                    $copyEndpointStatus.Status = "Successful"
                    $copyEndpointStatus
                }
                catch {
                    $copyEndpointStatus.Status = "Failed"
                    $copyEndpointStatus

                    Stop-Function -Message "Issue creating server endpoint." -Target $endpointName -InnerErrorRecord $_
                }
            }
        }
    }
    end {
        Test-DbaDeprecation -DeprecatedOn "1.0.0" -Silent:$false -Alias Copy-SqlEndpoint
    }
}