GraphQL-293: [Payment methods] Set Payment Method on Cart

Author: naydav

app/code/Magento/QuoteGraphQl/Model/Resolver/SelectedPaymentMethod.php

@@ -36,7 +36,7 @@ public function resolve(Field $field, $context, ResolveInfo $info, array $value
 
         return [
             'code' => $payment->getMethod(),
-            'po_number' => $payment->getPoNumber(),
+            'purchase_order_number' => $payment->getPoNumber(),
         ];
     }
 }

app/code/Magento/QuoteGraphQl/Model/Resolver/SetPaymentMethodOnCart.php

@@ -81,10 +81,7 @@ public function resolve(Field $field, $context, ResolveInfo $info, array $value
             throw new GraphQlInputException(__('Required parameter payment "code" is missing'));
         }
 
-        $poNumber = $this->arrayManager->get('input/payment_method/po_number', $args);
-        if (!$poNumber) {
-            throw new GraphQlInputException(__('Required parameter payment "po_number" is missing'));
-        }
+        $poNumber = $this->arrayManager->get('input/payment_method/purchase_order_number', $args);
 
         $cart = $this->getCartForUser->execute($maskedCartId, $context->getUserId());
         $payment = $this->paymentFactory->create([

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

@@ -110,7 +110,7 @@ input SetPaymentMethodOnCartInput {
 
 input PaymentMethodInput {
     code: String! @doc(description:"Payment method code")
-    po_number: String! @doc(description:"Purchase order number")
+    purchase_order_number: String @doc(description:"Purchase order number")
     additional_data: PaymentMethodAdditionalDataInput
 }
 
@@ -203,7 +203,7 @@ type AvailablePaymentMethod {
 
 type SelectedPaymentMethod {
     code: String @doc(description: "The payment method code")
-    po_number: String @doc(description: "The purchase order number.")
+    purchase_order_number: String @doc(description: "The purchase order number.")
     additional_data: SelectedPaymentMethodAdditionalData
 }