Azure Powershell Set ConnectionStrings and App Settings

AzurePowershellSetConnectionStrings.ps1

function UpdateConnectionStrings { 
    param( 
       [string]$ResourceGroup, 
       [string]$WebAppName, 
       [string]$Slot, 
       [hashtable]$ConnectionStrings,
       [hashtable]$AppSettings 
   )
   
       Write-Host "Loading Existing Connectionstrings"
       $webApp = Get-AzureRmWebAppSlot -ResourceGroupName  $ResourceGroup -Name $WebAppName -Slot $Slot
       
       Write-Host "Applying New AppSettings"
       $appSettinghash = @{}
       ForEach ($kvp in $webApp.SiteConfig.AppSettings) {
           $appSettinghash[$kvp.Name] = $kvp.Value
       }
   
       ForEach ($key in $AppSettings.Keys) {
           $appSettinghash[$key] = $AppSettings[$key]
       }
       
       Write-Host "Applying New Connectionstrings"
       $connstringhash = @{}
       # adds existings connections strings to the hash so they are lost
       ForEach ($kvp in $webApp.SiteConfig.ConnectionStrings) {
           $connstringhash[$kvp.Name] = @{ Type=$kvp.Type; Value = $kvp.ConnectionString } 
           Write-Host $connstringhash[$kvp.Name]
       }
   
       # adds new connection strings to has
       ForEach ($key in $ConnectionStrings.Keys) {
           $connstringhash[$key] = $ConnectionStrings[$key]
           Write-Host $connstringhash[$kvp.Name]
       }
   
       Write-Host "Saving ConnectionStrings and App Settings"
       
       Set-AzureRMWebAppSlot -ResourceGroupName $ResourceGroup -Name $WebAppName -ConnectionStrings $connstringhash -AppSettings $appSettinghash -Slot $Slot | Out-Null
       Write-Host "ConnectionStrings Updated"
   }