$appManagementService = Get-SPServiceInstance | where {$_.TypeName -like ‘App Management Service‘}
if($appManagementService.Status -ne ‘Online‘) {
Write-Host ‘Starting App Management Service‘
Start-SPServiceInstance $appManagementService | Out-Null
}
else{
Write-Host ‘App Management Service was already started‘
}
# wait for App Management Service to start”
while ($service.Status -ne ‘Online‘) {
# delay 5 seconds then check to see if service has started sleep 5
$service = Get-SPServiceInstance | where {$_.TypeName -like ‘App Management Service‘}
}

$subscriptionSettingsService = Get-SPServiceInstance | where {$_.TypeName -like ‘Microsoft SharePoint Foundation Subscription Settings Service‘}
if($subscriptionSettingsService.Status -ne ‘Online‘) {
Write-Host ‘Starting Subscription Settings Service‘
Start-SPServiceInstance $subscriptionSettingsService | Out-Null
}
else{
Write-Host ‘Subscription Settings Service was already started‘
}
while ($service.Status -ne ‘Online‘) {
# delay 5 seconds then check to see if service has started sleep 5
$service = Get-SPServiceInstance | where {$_.TypeName -like ‘Microsoft SharePoint Foundation Subscription Settings Service‘}
}

$appManagemetnServiceApplicationName = ‘App Management Service‘
$appManagementServiceApplication = Get-SPServiceApplication | where {$_.Name -eq $appManagemetnServiceApplicationName}
# create an instance App Management Service Application and proxy if they do not exist
if($appManagementServiceApplication -eq $null) {
Write-Host ‘Creating App Management Service Application‘
$pool = Get-SPServiceApplicationPool ‘SharePoint Web Services Default‘
$appManagementServiceDB= ‘Sharepoint_AppManagementServiceDB‘
$appManagementServiceApplication = New-SPAppManagementServiceApplication `
-ApplicationPool $pool `
-Name $appManagemetnServiceApplicationName `
-DatabaseName $appManagementServiceDB
Write-Host ‘Creating App Management Service Application Proxy‘
$appManagementServicApplicationProxy = New-SPAppManagementServiceApplicationProxy `
-ServiceApplication $appManagementServiceApplication
}
else{
Write-Host ‘App Management Service Application already exist‘
}

$subscriptionSettingsServiceApplicationName = ‘Subscription Settings Service Application‘
$subscriptionSettingsServiceApplication = Get-SPServiceApplication | where {$_.Name -eq $subscriptionSettingsServiceApplicationName}
# create an instance Subscription Service Application and proxy if they do not exist
if($subscriptionSettingsServiceApplication -eq $null) {
Write-Host ‘Creating Subscription Settings Service Application‘
$pool = Get-SPServiceApplicationPool ‘SharePoint Web Services Default‘
$subscriptionSettingsServiceDB= ‘Sharepoint_SiteSubscriptionSettingsServiceDB‘
$subscriptionSettingsServiceApplication = New-SPSubscriptionSettingsServiceApplication `
-ApplicationPool $pool `
-Name $subscriptionSettingsServiceApplicationName `
-DatabaseName $subscriptionSettingsServiceDB
Write-Host ‘Creating Subscription Settings Service Application Proxy‘
$subscriptionSettingsServicApplicationProxy = New-SPSubscriptionSettingsServiceApplicationProxy `
-ServiceApplication $subscriptionSettingsServiceApplication
}
else{
Write-Host ‘Subscription Settings Service Application already exist‘
}
Set-SPAppDomain ‘apps.xxx.com‘ -Confirm:$false

Set-SPAppSiteSubscriptionName -Name ‘app‘ -Confirm:$false