Magento 2: Get customer data in GraphQL

By using GraphQL, You can get data of logged in customers.

Magento 2 can directly call api to get data by resolver.

Module name : Magemonkeys::Custom

create file schema.graphqls in etc folder in that module

type Query
{
    getCustomerData: Response 
    @resolver(class:"Magemonkeys\\Custom\\Model\\Resolver\\Getdataforcustomer")
}

type Response
{
    customer_id: String
    customer_name: String
}

type Query

{

getCustomerData: Response

@resolver(class:"Magemonkeys\\Custom\\Model\\Resolver\\Getdataforcustomer")

}

type Response

{

customer_id: String

customer_name: String

}

Create Getdataforcustomer.php in Model/Resolver Folder in that module

namespace Magemonkeys\Custom\Model\Resolver;

use Magento\Framework\GraphQl\Query\ResolverInterface;
use Magento\Framework\GraphQl\Config\Element\Field;
use Magento\Framework\GraphQl\Schema\Type\ResolveInfo;
use Magento\Framework\GraphQl\Exception\GraphQlNoSuchEntityException;
use Magento\Framework\GraphQl\Exception\GraphQlAuthorizationException;
use Magento\CustomerGraphQl\Model\Customer\GetCustomer;

class Getdataforcustomer implements ResolverInterface
{
   private $getdataforCustomer;
     
   public function __construct(GetCustomer $getdataforCustomer)
   {
      $this->getCustomer = $getdataforCustomer;
   }
   public function resolve(Field $field, $context, ResolveInfo $info, array $value = null, array $args = null)
   {
      try
      {
         if (false === $context->getExtensionAttributes()->getIsCustomer())
         {
            throw new GraphQlAuthorizationException(__('The current customer not getting'));
         }
         $customerdata = $this->getCustomer->execute($context);
         $customername = $customerdata->getFirstName()." ".$customerdata->getLastName();
         $result = ['customer_id' => $customer->getId(),
                    'customer_name' => $customername
                   ];   
         return $result;
      }
      catch(\Exception $exception)
      {
          throw new GraphQlNoSuchEntityException(__($exception->getMessage()));
      }
   }
}

namespace Magemonkeys\Custom\Model\Resolver;

use Magento\Framework\GraphQl\Query\ResolverInterface;

use Magento\Framework\GraphQl\Config\Element\Field;

use Magento\Framework\GraphQl\Schema\Type\ResolveInfo;

use Magento\Framework\GraphQl\Exception\GraphQlNoSuchEntityException;

use Magento\Framework\GraphQl\Exception\GraphQlAuthorizationException;

use Magento\CustomerGraphQl\Model\Customer\GetCustomer;

class Getdataforcustomer implements ResolverInterface

{

private $getdataforCustomer;

public function __construct(GetCustomer $getdataforCustomer)

{

$this->getCustomer = $getdataforCustomer;

}

public function resolve(Field $field, $context, ResolveInfo $info, array $value = null, array $args = null)

{

try

{

if (false === $context->getExtensionAttributes()->getIsCustomer())

{

throw new GraphQlAuthorizationException(__('The current customer not getting'));

}

$customerdata = $this->getCustomer->execute($context);

$customername = $customerdata->getFirstName()." ".$customerdata->getLastName();

$result = ['customer_id' => $customer->getId(),

'customer_name' => $customername

];

return $result;

}

catch(\Exception $exception)

{

throw new GraphQlNoSuchEntityException(__($exception->getMessage()));

}

After that run command to call api url

That’s it.

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