getInvoices always returns NULL

[johnleyburn]

I'm fairly new to PHP and Xero but, so far have managed to get everything I need working. I do, however, have a problem with getInvoices that I just cannot solve.

My code is as follows:

  $config = XeroAPI\XeroPHP\Configuration::getDefaultConfiguration()->setAccessToken($setting['AccToken']);

  $apiInstance = new XeroAPI\XeroPHP\Api\AccountingApi(new GuzzleHttp\Client(), $config);
  $xeroTenantId = $setting['XTenantID'];
  $ifModifiedSince = null;
  $where = null;
  $order = null;
  $iDs = null;
  $invoiceNumbers = null;
  $contactIDs = array($setting["XMCDContactID"]);
  $statuses = null;
  $page = 1;
  $includeArchived = null;
  $createdByMyApp = null;
  $unitdp = null;
  $summaryOnly = true;

  try
  {
    $result = $apiInstance->getInvoices($xeroTenantId, $ifModifiedSince, $where, $order, $iDs, $invoiceNumbers, $contactIDs, $statuses, $page, $includeArchived, $createdByMyApp, $unitdp, $summaryOnly);
  }
  catch (Exception $e)
  {
    echo 'Exception when calling AccountingApi->getInvoices: ', $e->getMessage(), PHP_EOL;
  }

Which, I assume, should return all invoices for the ContactID ($setting["XMCDContactID"] is definitely populated with the correct ID) but it returns NULL.

I've also tried changing the following (both the invoices definitely exist in Xero).

  $invoiceNumbers = array("INV-0044", "INV-0045");
  $contactIDs = null;

But that also returns NULL.

I'm clearly missing something obvious but I just can't see it...

John

[pumpkinball]

Hi @johnleyburn you're right your code does look fine.
It may be worth popping in your parameters into API Explorer and running the same GET request, just to check that it returns what you're expecting there. https://api-explorer.xero.com/accounting/invoices/getinvoices

[johnleyburn]

Thanks again for that, I think sometimes you can't see the wood for the trees. I spent hours looking at this yesterday and, having followed your suggestion and gone back to my code, I suddenly realised that the function that my code was in had no return hence the null!

Sorry for wasting your time, must try harder next time...

John

[pumpkinball]

It happens to all of us 😄

[johnleyburn]

Thanks for the suggestion, I've just tried the API Explorer and it is returns exactly what I would expect...