$url =  "https://yourdomain.teamdynamix.com/TDWebApi/api"
$action = "/auth/loginadmin"
$endpoint = $url+$action

$request = '{
    "BEID": "YourTDXAPIBEID",
    "WebServicesKey": "YourWebServicesKey"
}'

$jwt = Invoke-RestMethod -Method Post -Uri $endpoint -Body $request -ContentType "application/json; charset=utf-8"

return $jwt