Magento 2 access Rest API interface from root file - php

Question

I have created a script file in root and I want to create a new customer from that file below is my code for that.
use Magento\Framework\App\Bootstrap;
//use Magento\Customer\Api\Data\CustomerInterface;
require __DIR__ . '/../../app/bootstrap.php';
$bootstrap = Bootstrap::create(BP, $_SERVER);
$obj = $bootstrap->getObjectManager();
$obj->get('Magento\Framework\App\State')->setAreaCode('frontend');
$customerData = [
'customer' => [
'email' => 'demo#user.com',
'firstname' => 'John',
'lastname' => 'Wick',
],
'password' => 'John123'
];
$customer=$obj->get('\Magento\Customer\Api\AccountManagementInterface');
$customer->createAccount($customerData);
but when i run this code it gives me below error.
Fatal error: Uncaught TypeError: Argument 1 passed to Magento\Customer\Model\AccountManagement\Interceptor::createAccount() must be an instance of Magento\Customer\Api\Data\CustomerInterface, array given, called in C:\wamp64\www\mg\m2\rest\v3\Customer.php on line 82 and defined in C:\wamp64\www\mg\m2\generated\code\Magento\Customer\Model\AccountManagement\Interceptor.php:124
Stack trace:
0 C:\wamp64\www\mg\m2\rest\v3\Customer.php(82): Magento\Customer\Model\AccountManagement\Interceptor->createAccount(Array)
1 C:\wamp64\www\mg\m2\rest\v3\api.php(7): require_once('C:\wamp64\www\m...')
2 {main}
thrown in
C:\wamp64\www\mg\m2\generated\code\Magento\Customer\Model\AccountManagement\Interceptor.php on line
124
Please help. actually i want to access web api method directly from code and get response so that i can modify that response accordingly. because we already have app running in magento 1.9. so we don't want to change response

Answer 1

It's just like the error message says. You have to pass an implementation of Magento\Customer\Api\Data\CustomerInterface to the createAccount method.
So instead of passing a simple array like $customerData, you should create a new instance of a CustomerInterface implementation instead ... and fill it with the required data.
Searching through their github repo I found this:
Magento\Customer\Model\Data\Customer
https://github.com/magento/magento2/search?utf8=%E2%9C%93&q=%22implements+Magento%5CCustomer%5CApi%5CData%5CCustomerInterface%22&type=
So unless you want to create your own implementation, this is what you should pass to createAccount
You should be able to create one via the factory like so:
try {
$objectManager = $bootstrap->getObjectManager();
$objectManager->get(Magento\Framework\App\State::class)
->setAreaCode(\Magento\Framework\App\Area::AREA_FRONTEND);
/** #var \Magento\Customer\Api\Data\CustomerInterfaceFactory $customerFactory */
$customerFactory = $objectManager->create(\Magento\Customer\Api\Data\CustomerInterfaceFactory::class);
$customer = $customerFactory->create();
$customer
->setEmail('justincase#test123.xyz')
->setFirstname('Justin')
->setLastname('Case');
/** #var \Magento\Customer\Api\AccountManagementInterface $accountManager */
$accountManager = $objectManager->create(\Magento\Customer\Api\AccountManagementInterface::class);
$accountManager->createAccount($customer);
} catch (Exception $e) {
echo $e->getMessage();
}
Ok, since I was curious, I quickly (lol) installed magento2 myself. With the above example I was able to create a customer on a fresh magento2 install.