Native powershell implementation of Publish-AzWebApp (currently C# based)

PublishAzWebApp.ps1

$publishingUsername = '$xxx'
$publishingPassword = 'xxx'
$scmUri = 'https://xxx.scm.azurewebsites.net'

$zipFile = "xxx.zip"

$deployUrl = "$scmUri/api/zipdeploy?isAsync=true"
$deployStatusUrl = "$scmUri/api/deployments/latest"
$byteArray = [System.Text.Encoding]::ASCII.GetBytes($publishingUsername + ":" + $publishingPassword)
$authHeader = "Basic $([Convert]::ToBase64String($byteArray))"

$headers = @{
    "Authorization" = $authHeader
    "Content-Type" = "application/zip"
}

$null = Invoke-WebRequest -Method POST -Headers $headers -Uri $deployUrl -InFile $zipFile
Write-Host "Sent zip file"

$numStatusChecks = 600
$numChecks = 0;
$result = $null
do
{
    Start-Sleep -Seconds 2
    $result = Invoke-WebRequest -Headers $headers -Uri $deployStatusUrl
    $numChecks++;
    Write-Host "Check $numChecks - status is currently $([System.Net.HttpStatusCode]$result.StatusCode)"
} while ($result.StatusCode -eq [int][System.Net.HttpStatusCode]::Accepted -and $numChecks -lt $numStatusChecks);

if ($result.StatusCode -eq [int][System.Net.HttpStatusCode]::Accepted -and $numChecks -ge $numStatusChecks)
{
    Write-Error "Maximum status polling time exceeded. Deployment is still in progress."
}
elseif ($result.StatusCode -ne [int][System.Net.HttpStatusCode]::OK)
{
    Write-Error "Deployment failed with status code " + $result.StatusCode
}
else {
    Write-Host "Deployment successful"
}