####################################################################
$urlp = "$domain/api/v1/accounts/$account_id/reports/grade_export_csv"
$headers = @{"Authorization"="Bearer "+$token}
$ContentType = "application/json;"
$postParam = @{"enrollment_term_id"="201820_1"}

$id = Invoke-WebRequest -Headers $headers -Method Post -Uri $urlp -Body $postParam | ConvertFrom-Json|Select-Object -ExpandProperty ID

Write-Output $id

$urlg = "$domain/api/v1/accounts/$account_id/reports/grade_export_csv/$id"

Start-Sleep 60

$report = Invoke-WebRequest -Headers $headers -Method Get -ContentType $ContentType -Uri $urlg |ConvertFrom-Json|Select-Object -ExpandProperty file_url

Write-Output $report

Invoke-WebRequest -Uri $report -OutFile $output