I can't even get Dwolla's sample code to work.
Take this for example. I copied this PHP code from https://developers.dwolla.com/.
DwollaSwagger\Configuration::$auth_token = 'GnlMMOlLLTTwRRC44gGPkjfsVbVtwzkptDVdIB0fwGwLnV481N';
$apiClient = new DwollaSwagger\ApiClient("https://api-sandbox.dwolla.com/");
$transfer_request = array (
'href' => 'https://api-sandbox.dwolla.com/funding-sources/118b08b9-e1eb-48b7-94ad-866989b0764e',
'href' => 'https://api-sandbox.dwolla.com/funding-sources/2fa64102-185d-443d-9001-dda9bc37651d',
'currency' => 'USD',
'value' => '9.00',
$transferApi = new DwollaSwagger\TransfersApi($apiClient);
$myAccount = $transferApi->create($transfer_request);
Pasted it into my file, saved, loaded it into a browser and WHAM!
Fatal error: Uncaught Error: Access to undeclared static property: DwollaSwagger\Configuration::$auth_token
so I comment out that line and WHAM!
Fatal error: Uncaught DwollaSwagger\ApiException:  Error connecting to the API (https://api-sandbox.dwolla.com//transfers)
Also, notice how on the last line it's trying to print a variable that wasn't created?
How is anybody getting anything done with this documentation?