copilotretrievalapi.ps1

# Delegated token for the signed-in user with Files.Read.All + Sites.Read.All
$token = "<ACCESS_TOKEN>"

$body = @{
  queryString            = "What is our paternal leave policy?"
  dataSource             = "sharePoint"
  filterExpression       = 'path:"https://contoso.sharepoint.com/sites/HR1/"'
  resourceMetadata       = @("title","author")
  maximumNumberOfResults = 4
} | ConvertTo-Json -Depth 6

Invoke-RestMethod -Method Post `
  -Uri "https://graph.microsoft.com/v1.0/copilot/retrieval" `
  -Headers @{ Authorization = "Bearer $token"; "Content-Type" = "application/json" } `
  -Body $body