fix : add error handler for addProduct and addBillingPlan from subscription helper

src/Traits/PayPalAPI/Subscriptions/Helpers.php

@@ -328,13 +328,19 @@ public function addProduct(string $name, string $description, string $type, stri
 
         $request_id = Str::random();
 
-        $this->product = $this->createProduct([
+        $product = $this->createProduct([
             'name'        => $name,
             'description' => $description,
             'type'        => $type,
             'category'    => $category,
         ], $request_id);
 
+        if ($error = data_get($product, 'error', false)) {
+            throw new \RuntimeException(data_get($error, 'details.0.description', 'Failed to add product'));
+        }
+
+        $this->product = $product;
+
         return $this;
     }
 
@@ -398,7 +404,11 @@ protected function addBillingPlan(string $name, string $description, array $bill
             ],
         ];
 
-        $this->billing_plan = $this->createPlan($plan_params, $request_id);
+        $billingPlan = $this->createPlan($plan_params, $request_id);
+        if ($error = data_get($billingPlan, 'error', false)) {
+            throw new \RuntimeException(data_get($error, 'details.0.description', 'Failed to add billing plan'));
+        }
+        $this->billing_plan = $billingPlan;
     }
 
     /**

tests/Feature/AdapterCreateSubscriptionHelpersTest.php

@@ -255,6 +255,52 @@ public function it_throws_exception_when_invalid_interval_is_provided_for_creati
         $this->client = $this->client->addCustomPlan('Demo Plan', 'Demo Plan', 100, 'MONTHLY', 3);
     }
 
+    /** @test */
+    public function it_throws_exception_when_get_error_for_creating_a_billing_plan()
+    {
+        $this->client->setAccessToken([
+            'access_token'  => self::$access_token,
+            'token_type'    => 'Bearer',
+        ]);
+
+        $this->client->setClient(
+            $this->mock_http_client(
+                $this->mockCreateCatalogProductsResponse()
+            )
+        );
+
+        $this->client = $this->client->addProduct('Demo Product', 'Demo Product', 'SERVICE', 'SOFTWARE');
+
+        $this->client->setClient(
+            $this->mock_http_client(
+                $this->mockCreatePlansErrorResponse()
+            )
+        );
+
+        $this->expectException(\RuntimeException::class);
+
+        $this->client = $this->client->addMonthlyPlan('Demo Plan', 'Demo Plan', 100);
+    }
+
+    /** @test */
+    public function it_throws_exception_when_get_error_for_creating_a_product()
+    {
+        $this->client->setAccessToken([
+            'access_token'  => self::$access_token,
+            'token_type'    => 'Bearer',
+        ]);
+
+        $this->client->setClient(
+            $this->mock_http_client(
+                $this->mockGetCatalogProductsErrorResponse()
+            )
+        );
+
+        $this->expectException(\RuntimeException::class);
+
+        $this->client = $this->client->addProduct('Demo Product', 'Demo Product', 'SERVICE', 'SOFTWARE');
+    }
+
     /** @test */
     public function it_can_create_a_subscription_without_trial()
     {

tests/Mocks/Responses/BillingPlans.php

@@ -274,6 +274,33 @@ private function mockGetPlansResponse(): array
       "method": "POST"
     }
   ]
+}', true);
+    }
+
+    /**
+     * @return array
+     */
+    private function mockCreatePlansErrorResponse(): array
+    {
+        return Utils::jsonDecode('{
+    "error": {
+        "name" : "UNPROCESSABLE_ENTITY",
+        "message" : "The requested action could not be performed, semantically incorrect, or failed business validation.",
+        "debug_id" : "7a944631e76bf",
+        "details" : [
+            {
+                "issue" : "CURRENCY_NOT_SUPPORTED_FOR_RECEIVER",
+                "description" : "This currency cannot be accepted for this recipient\'s account."
+            }
+        ],
+        "links" : [
+            {
+                "href" : "https://developer.paypal.com/docs/api/v1/billing/subscriptions#UNPROCESSABLE_ENTITY",
+                "rel" : "information_link",
+                "method" : "GET"
+            }
+        ]
+    }
 }', true);
     }
 }

tests/Mocks/Responses/CatalogProducts.php

@@ -119,6 +119,35 @@ private function mockGetCatalogProductsResponse(): array
       "method": "PATCH"
     }
   ]
+}', true);
+    }
+
+    /**
+     * @return array
+     */
+    private function mockGetCatalogProductsErrorResponse(): array
+    {
+        return Utils::jsonDecode('{
+    "error": {
+        "name": "INVALID_REQUEST",
+        "message": "Request is not well-formed, syntactically incorrect, or violates schema.",
+        "debug_id": "b2aaac7fe91d1",
+        "details": [
+            {
+                "field": "\/type",
+                "location": "body",
+                "issue": "MISSING_REQUIRED_PARAMETER",
+                "description": "A required field is missing."
+            }
+        ],
+        "links": [
+            {
+                "href": "https:\/\/developer.paypal.com\/docs\/api\/v1\/billing\/subscriptions#INVALID_REQUEST",
+                "rel": "information_link",
+                "method": "GET"
+            }
+        ]
+    }
 }', true);
     }
 }