added customer input fields doc block, changed try catch block for handling only validation exceptions

Author: Stepa4man

app/code/Magento/CustomerGraphQl/Model/Resolver/CreateCustomer.php

@@ -18,8 +18,11 @@
 use Magento\Framework\Exception\NoSuchEntityException;
 use Magento\Framework\GraphQl\Config\Element\Field;
 use Magento\Framework\GraphQl\Exception\GraphQlInputException;
+use Magento\Framework\GraphQl\Query\Resolver\ContextInterface;
+use Magento\Framework\GraphQl\Query\Resolver\Value;
 use Magento\Framework\GraphQl\Query\ResolverInterface;
 use Magento\Framework\GraphQl\Schema\Type\ResolveInfo;
+use Magento\Framework\Validator\Exception as ValidatorException;
 use Magento\Newsletter\Model\SubscriberFactory;
 use Magento\Store\Model\StoreManagerInterface;
 
@@ -82,7 +85,15 @@ public function __construct(
     }
 
     /**
-     * @inheritdoc
+     * @param Field $field
+     * @param ContextInterface $context
+     * @param ResolveInfo $info
+     * @param array|null $value
+     * @param array|null $args
+     * @return array|Value|mixed
+     * @throws GraphQlInputException
+     * @throws LocalizedException
+     * @throws NoSuchEntityException
      */
     public function resolve(
         Field $field,
@@ -104,7 +115,7 @@ public function resolve(
                 }
             }
             $data = $this->customerDataProvider->getCustomerById($customerId);
-        } catch (LocalizedException $e) {
+        } catch (ValidatorException $e) {
             throw new GraphQlInputException(__($e->getMessage()));
         }
 

app/code/Magento/CustomerGraphQl/etc/schema.graphqls

@@ -18,17 +18,17 @@ type CustomerToken {
 }
 
 input CustomerInput {
-    prefix: String
-    firstname: String
-    middlename: String
-    lastname: String
-    suffix: String
-    dob: String
-    taxvat: String
-    gender: Int
-    email: String
-    password: String
-    is_subscribed: Boolean
+    prefix: String @doc(description: "An honorific, such as Dr., Mr., or Mrs.")
+    firstname: String @doc(description: "The customer's first name")
+    middlename: String @doc(description: "The customer's middle name")
+    lastname: String @doc(description: "The customer's family name")
+    suffix: String @doc(description: "A value such as Sr., Jr., or III")
+    email: String @doc(description: "The customer's email address. Required")
+    dob: String @doc(description: "The customer's date of birth")
+    taxvat: String @doc(description: "The customer's Tax/VAT number (for corporate customers)")
+    gender: Int @doc(description: "The customer's gender(Male - 1, Female - 2)")
+    password: String @doc(description: "The customer's password")
+    is_subscribed: Boolean @doc(description: "Indicates whether the customer is subscribed to the company's newsletter")
 }
 
 type CustomerOutput {