From b8e36b0398a72b1308564ad8d4ccabe076cf6f1f Mon Sep 17 00:00:00 2001
From: James Cole <james@firefly-iii.org>
Date: Sat, 3 Oct 2020 16:51:44 +0200
Subject: [PATCH] Replace string with constant.

---
 app/Api/V1/Controllers/AboutController.php    |  4 +--
 app/Api/V1/Controllers/AccountController.php  | 14 ++++----
 .../V1/Controllers/AttachmentController.php   |  8 ++---
 .../Controllers/AvailableBudgetController.php |  8 ++---
 app/Api/V1/Controllers/BillController.php     | 14 ++++----
 app/Api/V1/Controllers/BudgetController.php   | 14 ++++----
 .../V1/Controllers/BudgetLimitController.php  | 10 +++---
 app/Api/V1/Controllers/CategoryController.php | 12 +++----
 .../Controllers/ConfigurationController.php   |  4 +--
 app/Api/V1/Controllers/Controller.php         |  1 +
 app/Api/V1/Controllers/CurrencyController.php | 32 +++++++++----------
 .../CurrencyExchangeRateController.php        |  2 +-
 app/Api/V1/Controllers/LinkTypeController.php | 10 +++---
 .../V1/Controllers/ObjectGroupController.php  |  8 ++---
 .../V1/Controllers/PiggyBankController.php    | 12 +++----
 .../V1/Controllers/PreferenceController.php   |  6 ++--
 .../V1/Controllers/RecurrenceController.php   | 10 +++---
 app/Api/V1/Controllers/RuleController.php     | 14 ++++----
 .../V1/Controllers/RuleGroupController.php    | 16 +++++-----
 .../Controllers/Search/AccountController.php  |  2 +-
 .../Search/TransactionController.php          |  2 +-
 app/Api/V1/Controllers/TagController.php      | 12 +++----
 .../V1/Controllers/TransactionController.php  | 14 ++++----
 .../Controllers/TransactionLinkController.php |  8 ++---
 app/Api/V1/Controllers/UserController.php     |  8 ++---
 25 files changed, 123 insertions(+), 122 deletions(-)

diff --git a/app/Api/V1/Controllers/AboutController.php b/app/Api/V1/Controllers/AboutController.php
index 49a3d7381c..2646e30867 100644
--- a/app/Api/V1/Controllers/AboutController.php
+++ b/app/Api/V1/Controllers/AboutController.php
@@ -60,7 +60,7 @@ class AboutController extends Controller
             'driver'      => $currentDriver,
         ];
 
-        return response()->json(['data' => $data])->header('Content-Type', 'application/vnd.api+json');
+        return response()->json(['data' => $data])->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -78,6 +78,6 @@ class AboutController extends Controller
 
         $resource = new Item(auth()->user(), $transformer, 'users');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 }
diff --git a/app/Api/V1/Controllers/AccountController.php b/app/Api/V1/Controllers/AccountController.php
index 572a8e1c02..e22a69f0e3 100644
--- a/app/Api/V1/Controllers/AccountController.php
+++ b/app/Api/V1/Controllers/AccountController.php
@@ -102,7 +102,7 @@ class AccountController extends Controller
         $resource = new FractalCollection($attachments, $transformer, 'attachments');
         $resource->setPaginator(new IlluminatePaginatorAdapter($paginator));
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -155,7 +155,7 @@ class AccountController extends Controller
         $resource = new FractalCollection($accounts, $transformer, self::RESOURCE_KEY);
         $resource->setPaginator(new IlluminatePaginatorAdapter($paginator));
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
 
@@ -191,7 +191,7 @@ class AccountController extends Controller
         $resource = new FractalCollection($piggyBanks, $transformer, 'piggy_banks');
         $resource->setPaginator(new IlluminatePaginatorAdapter($paginator));
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
 
     }
 
@@ -211,7 +211,7 @@ class AccountController extends Controller
         $transformer->setParameters($this->parameters);
         $resource = new Item($account, $transformer, self::RESOURCE_KEY);
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -233,7 +233,7 @@ class AccountController extends Controller
 
         $resource = new Item($account, $transformer, self::RESOURCE_KEY);
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -283,7 +283,7 @@ class AccountController extends Controller
         $resource = new FractalCollection($groups, $transformer, 'transactions');
         $resource->setPaginator(new IlluminatePaginatorAdapter($paginator));
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -306,6 +306,6 @@ class AccountController extends Controller
         $transformer->setParameters($this->parameters);
         $resource = new Item($account, $transformer, self::RESOURCE_KEY);
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 }
diff --git a/app/Api/V1/Controllers/AttachmentController.php b/app/Api/V1/Controllers/AttachmentController.php
index b89eaab5bf..77ca07819b 100644
--- a/app/Api/V1/Controllers/AttachmentController.php
+++ b/app/Api/V1/Controllers/AttachmentController.php
@@ -160,7 +160,7 @@ class AttachmentController extends Controller
         $resource = new FractalCollection($attachments, $transformer, 'attachments');
         $resource->setPaginator(new IlluminatePaginatorAdapter($paginator));
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -179,7 +179,7 @@ class AttachmentController extends Controller
 
         $resource = new Item($attachment, $transformer, 'attachments');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -202,7 +202,7 @@ class AttachmentController extends Controller
 
         $resource = new Item($attachment, $transformer, 'attachments');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -225,7 +225,7 @@ class AttachmentController extends Controller
 
         $resource = new Item($attachment, $transformer, 'attachments');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
diff --git a/app/Api/V1/Controllers/AvailableBudgetController.php b/app/Api/V1/Controllers/AvailableBudgetController.php
index 973d15bb76..4a1d8e8955 100644
--- a/app/Api/V1/Controllers/AvailableBudgetController.php
+++ b/app/Api/V1/Controllers/AvailableBudgetController.php
@@ -111,7 +111,7 @@ class AvailableBudgetController extends Controller
         $resource = new FractalCollection($availableBudgets, $transformer, 'available_budgets');
         $resource->setPaginator(new IlluminatePaginatorAdapter($paginator));
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -132,7 +132,7 @@ class AvailableBudgetController extends Controller
 
         $resource = new Item($availableBudget, $transformer, 'available_budgets');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -165,7 +165,7 @@ class AvailableBudgetController extends Controller
 
         $resource = new Item($availableBudget, $transformer, 'available_budgets');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
 
@@ -205,7 +205,7 @@ class AvailableBudgetController extends Controller
 
         $resource = new Item($availableBudget, $transformer, 'available_budgets');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
 
     }
 }
diff --git a/app/Api/V1/Controllers/BillController.php b/app/Api/V1/Controllers/BillController.php
index 560713d202..123c4b7ec4 100644
--- a/app/Api/V1/Controllers/BillController.php
+++ b/app/Api/V1/Controllers/BillController.php
@@ -103,7 +103,7 @@ class BillController extends Controller
         $resource = new FractalCollection($attachments, $transformer, 'attachments');
         $resource->setPaginator(new IlluminatePaginatorAdapter($paginator));
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -143,7 +143,7 @@ class BillController extends Controller
         $resource = new FractalCollection($bills, $transformer, 'bills');
         $resource->setPaginator(new IlluminatePaginatorAdapter($paginator));
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -178,7 +178,7 @@ class BillController extends Controller
         $resource = new FractalCollection($rules, $transformer, 'rules');
         $resource->setPaginator(new IlluminatePaginatorAdapter($paginator));
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
 
     }
 
@@ -199,7 +199,7 @@ class BillController extends Controller
 
         $resource = new Item($bill, $transformer, 'bills');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -221,7 +221,7 @@ class BillController extends Controller
 
         $resource = new Item($bill, $transformer, 'bills');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -279,7 +279,7 @@ class BillController extends Controller
         $resource = new FractalCollection($transactions, $transformer, 'transactions');
         $resource->setPaginator(new IlluminatePaginatorAdapter($paginator));
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -302,7 +302,7 @@ class BillController extends Controller
 
         $resource = new Item($bill, $transformer, 'bills');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
 
     }
 }
diff --git a/app/Api/V1/Controllers/BudgetController.php b/app/Api/V1/Controllers/BudgetController.php
index 8b144d7bf4..e22726aacb 100644
--- a/app/Api/V1/Controllers/BudgetController.php
+++ b/app/Api/V1/Controllers/BudgetController.php
@@ -109,7 +109,7 @@ class BudgetController extends Controller
         $resource = new FractalCollection($budgetLimits, $transformer, 'budget_limits');
         $resource->setPaginator(new IlluminatePaginatorAdapter($paginator));
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -138,7 +138,7 @@ class BudgetController extends Controller
         $resource = new FractalCollection($attachments, $transformer, 'attachments');
         $resource->setPaginator(new IlluminatePaginatorAdapter($paginator));
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -185,7 +185,7 @@ class BudgetController extends Controller
         $resource = new FractalCollection($budgets, $transformer, 'budgets');
         $resource->setPaginator(new IlluminatePaginatorAdapter($paginator));
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -206,7 +206,7 @@ class BudgetController extends Controller
 
         $resource = new Item($budget, $transformer, 'budgets');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -229,7 +229,7 @@ class BudgetController extends Controller
 
         $resource = new Item($budget, $transformer, 'budgets');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -293,7 +293,7 @@ class BudgetController extends Controller
         $resource = new FractalCollection($transactions, $transformer, 'transactions');
         $resource->setPaginator(new IlluminatePaginatorAdapter($paginator));
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -316,7 +316,7 @@ class BudgetController extends Controller
 
         $resource = new Item($budget, $transformer, 'budgets');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
 
     }
 
diff --git a/app/Api/V1/Controllers/BudgetLimitController.php b/app/Api/V1/Controllers/BudgetLimitController.php
index 7973104360..8fad0ff3a8 100644
--- a/app/Api/V1/Controllers/BudgetLimitController.php
+++ b/app/Api/V1/Controllers/BudgetLimitController.php
@@ -129,7 +129,7 @@ class BudgetLimitController extends Controller
         $resource = new FractalCollection($budgetLimits, $transformer, 'budget_limits');
         $resource->setPaginator(new IlluminatePaginatorAdapter($paginator));
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -150,7 +150,7 @@ class BudgetLimitController extends Controller
 
         $resource = new Item($budgetLimit, $transformer, 'budget_limits');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -178,7 +178,7 @@ class BudgetLimitController extends Controller
 
         $resource = new Item($budgetLimit, $transformer, 'budget_limits');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -231,7 +231,7 @@ class BudgetLimitController extends Controller
         $resource = new FractalCollection($transactions, $transformer, 'transactions');
         $resource->setPaginator(new IlluminatePaginatorAdapter($paginator));
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -254,7 +254,7 @@ class BudgetLimitController extends Controller
 
         $resource = new Item($budgetLimit, $transformer, 'budget_limits');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
 
     }
 }
diff --git a/app/Api/V1/Controllers/CategoryController.php b/app/Api/V1/Controllers/CategoryController.php
index 9f242de7e4..312af6a738 100644
--- a/app/Api/V1/Controllers/CategoryController.php
+++ b/app/Api/V1/Controllers/CategoryController.php
@@ -99,7 +99,7 @@ class CategoryController extends Controller
         $resource = new FractalCollection($attachments, $transformer, 'attachments');
         $resource->setPaginator(new IlluminatePaginatorAdapter($paginator));
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -147,7 +147,7 @@ class CategoryController extends Controller
         $resource = new FractalCollection($categories, $transformer, 'categories');
         $resource->setPaginator(new IlluminatePaginatorAdapter($paginator));
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
 
@@ -169,7 +169,7 @@ class CategoryController extends Controller
 
         $resource = new Item($category, $transformer, 'categories');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -191,7 +191,7 @@ class CategoryController extends Controller
 
         $resource = new Item($category, $transformer, 'categories');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -247,7 +247,7 @@ class CategoryController extends Controller
         $resource = new FractalCollection($transactions, $transformer, 'transactions');
         $resource->setPaginator(new IlluminatePaginatorAdapter($paginator));
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -270,7 +270,7 @@ class CategoryController extends Controller
 
         $resource = new Item($category, $transformer, 'categories');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
 
     }
 
diff --git a/app/Api/V1/Controllers/ConfigurationController.php b/app/Api/V1/Controllers/ConfigurationController.php
index c9bf085b99..28d7e61d61 100644
--- a/app/Api/V1/Controllers/ConfigurationController.php
+++ b/app/Api/V1/Controllers/ConfigurationController.php
@@ -71,7 +71,7 @@ class ConfigurationController extends Controller
     {
         $configData = $this->getConfigData();
 
-        return response()->json(['data' => $configData])->header('Content-Type', 'application/vnd.api+json');
+        return response()->json(['data' => $configData])->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -88,7 +88,7 @@ class ConfigurationController extends Controller
         app('fireflyconfig')->set($name, $data['value']);
         $configData = $this->getConfigData();
 
-        return response()->json(['data' => $configData])->header('Content-Type', 'application/vnd.api+json');
+        return response()->json(['data' => $configData])->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
diff --git a/app/Api/V1/Controllers/Controller.php b/app/Api/V1/Controllers/Controller.php
index 888ab89e76..477e2f3a14 100644
--- a/app/Api/V1/Controllers/Controller.php
+++ b/app/Api/V1/Controllers/Controller.php
@@ -46,6 +46,7 @@ abstract class Controller extends BaseController
 
     protected ParameterBag $parameters;
 
+    protected const CONTENT_TYPE = self::CONTENT_TYPE;
 
     /**
      * Controller constructor.
diff --git a/app/Api/V1/Controllers/CurrencyController.php b/app/Api/V1/Controllers/CurrencyController.php
index ec6acf1aa5..69b6b13c14 100644
--- a/app/Api/V1/Controllers/CurrencyController.php
+++ b/app/Api/V1/Controllers/CurrencyController.php
@@ -148,7 +148,7 @@ class CurrencyController extends Controller
         $resource = new FractalCollection($accounts, $transformer, 'accounts');
         $resource->setPaginator(new IlluminatePaginatorAdapter($paginator));
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -193,7 +193,7 @@ class CurrencyController extends Controller
         $resource = new FractalCollection($availableBudgets, $transformer, 'available_budgets');
         $resource->setPaginator(new IlluminatePaginatorAdapter($paginator));
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -233,7 +233,7 @@ class CurrencyController extends Controller
         $resource = new FractalCollection($bills, $transformer, 'bills');
         $resource->setPaginator(new IlluminatePaginatorAdapter($paginator));
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -264,7 +264,7 @@ class CurrencyController extends Controller
         $resource = new FractalCollection($budgetLimits, $transformer, 'budget_limits');
         $resource->setPaginator(new IlluminatePaginatorAdapter($paginator));
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -295,7 +295,7 @@ class CurrencyController extends Controller
         $resource = new FractalCollection($exchangeRates, $transformer, 'currency_exchange_rates');
         $resource->setPaginator(new IlluminatePaginatorAdapter($paginator));
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -354,7 +354,7 @@ class CurrencyController extends Controller
 
         $resource = new Item($currency, $transformer, 'currencies');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
 
     }
 
@@ -380,7 +380,7 @@ class CurrencyController extends Controller
 
         $resource = new Item($currency, $transformer, 'currencies');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
 
     }
 
@@ -412,7 +412,7 @@ class CurrencyController extends Controller
         $resource = new FractalCollection($currencies, $transformer, 'currencies');
         $resource->setPaginator(new IlluminatePaginatorAdapter($paginator));
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -440,7 +440,7 @@ class CurrencyController extends Controller
 
         $resource = new Item($currency, $transformer, 'currencies');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
 
     }
 
@@ -492,7 +492,7 @@ class CurrencyController extends Controller
         $resource = new FractalCollection($piggyBanks, $transformer, 'recurrences');
         $resource->setPaginator(new IlluminatePaginatorAdapter($paginator));
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
 
     }
 
@@ -541,7 +541,7 @@ class CurrencyController extends Controller
         $resource = new FractalCollection($rules, $transformer, 'rules');
         $resource->setPaginator(new IlluminatePaginatorAdapter($paginator));
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
 
     }
 
@@ -565,7 +565,7 @@ class CurrencyController extends Controller
 
         $resource = new Item($currency, $transformer, 'currencies');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -586,7 +586,7 @@ class CurrencyController extends Controller
 
         $resource = new Item($currency, $transformer, 'currencies');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -614,7 +614,7 @@ class CurrencyController extends Controller
 
         $resource = new Item($currency, $transformer, 'currencies');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -670,7 +670,7 @@ class CurrencyController extends Controller
         $resource = new FractalCollection($transactions, $transformer, 'transactions');
         $resource->setPaginator(new IlluminatePaginatorAdapter($paginator));
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -702,7 +702,7 @@ class CurrencyController extends Controller
 
         $resource = new Item($currency, $transformer, 'currencies');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
 
     }
 }
diff --git a/app/Api/V1/Controllers/CurrencyExchangeRateController.php b/app/Api/V1/Controllers/CurrencyExchangeRateController.php
index af3ab1ae04..3bb085808a 100644
--- a/app/Api/V1/Controllers/CurrencyExchangeRateController.php
+++ b/app/Api/V1/Controllers/CurrencyExchangeRateController.php
@@ -107,6 +107,6 @@ class CurrencyExchangeRateController extends Controller
         $transformer->setParameters($this->parameters);
         $resource = new Item($rate, $transformer, 'currency_exchange_rates');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 }
diff --git a/app/Api/V1/Controllers/LinkTypeController.php b/app/Api/V1/Controllers/LinkTypeController.php
index cbbea428ec..36f5e359f6 100644
--- a/app/Api/V1/Controllers/LinkTypeController.php
+++ b/app/Api/V1/Controllers/LinkTypeController.php
@@ -122,7 +122,7 @@ class LinkTypeController extends Controller
         $resource = new FractalCollection($linkTypes, $transformer, 'link_types');
         $resource->setPaginator(new IlluminatePaginatorAdapter($paginator));
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
 
     }
 
@@ -143,7 +143,7 @@ class LinkTypeController extends Controller
 
         $resource = new Item($linkType, $transformer, 'link_types');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
 
     }
 
@@ -173,7 +173,7 @@ class LinkTypeController extends Controller
         $transformer->setParameters($this->parameters);
         $resource = new Item($linkType, $transformer, 'link_types');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
 
     }
 
@@ -232,7 +232,7 @@ class LinkTypeController extends Controller
         $resource = new FractalCollection($transactions, $transformer, 'transactions');
         $resource->setPaginator(new IlluminatePaginatorAdapter($paginator));
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
 
@@ -267,7 +267,7 @@ class LinkTypeController extends Controller
 
         $resource = new Item($linkType, $transformer, 'link_types');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
 
     }
 }
diff --git a/app/Api/V1/Controllers/ObjectGroupController.php b/app/Api/V1/Controllers/ObjectGroupController.php
index 2e68c799d7..ae6ad31dfc 100644
--- a/app/Api/V1/Controllers/ObjectGroupController.php
+++ b/app/Api/V1/Controllers/ObjectGroupController.php
@@ -111,7 +111,7 @@ class ObjectGroupController extends Controller
         $resource = new FractalCollection($objectGroups, $transformer, 'object_groups');
         $resource->setPaginator(new IlluminatePaginatorAdapter($paginator));
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
 
@@ -147,7 +147,7 @@ class ObjectGroupController extends Controller
         $resource = new FractalCollection($piggyBanks, $transformer, 'piggy_banks');
         $resource->setPaginator(new IlluminatePaginatorAdapter($paginator));
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
 
     }
 
@@ -167,7 +167,7 @@ class ObjectGroupController extends Controller
         $transformer->setParameters($this->parameters);
         $resource = new Item($objectGroup, $transformer, 'object_groups');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -190,6 +190,6 @@ class ObjectGroupController extends Controller
         $transformer->setParameters($this->parameters);
         $resource = new Item($objectGroup, $transformer, 'object_groups');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 }
diff --git a/app/Api/V1/Controllers/PiggyBankController.php b/app/Api/V1/Controllers/PiggyBankController.php
index dda2c1e60e..d5a3c6257d 100644
--- a/app/Api/V1/Controllers/PiggyBankController.php
+++ b/app/Api/V1/Controllers/PiggyBankController.php
@@ -109,7 +109,7 @@ class PiggyBankController extends Controller
         $resource = new FractalCollection($attachments, $transformer, 'attachments');
         $resource->setPaginator(new IlluminatePaginatorAdapter($paginator));
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -140,7 +140,7 @@ class PiggyBankController extends Controller
         $resource = new FractalCollection($piggyBanks, $transformer, 'piggy_banks');
         $resource->setPaginator(new IlluminatePaginatorAdapter($paginator));
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
 
     }
 
@@ -173,7 +173,7 @@ class PiggyBankController extends Controller
         $resource = new FractalCollection($events, $transformer, 'piggy_bank_events');
         $resource->setPaginator(new IlluminatePaginatorAdapter($paginator));
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
 
     }
 
@@ -195,7 +195,7 @@ class PiggyBankController extends Controller
 
         $resource = new Item($piggyBank, $transformer, 'piggy_banks');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
 
     }
 
@@ -218,7 +218,7 @@ class PiggyBankController extends Controller
 
         $resource = new Item($piggyBank, $transformer, 'piggy_banks');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -245,7 +245,7 @@ class PiggyBankController extends Controller
 
         $resource = new Item($piggyBank, $transformer, 'piggy_banks');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
 
     }
 }
diff --git a/app/Api/V1/Controllers/PreferenceController.php b/app/Api/V1/Controllers/PreferenceController.php
index 3fcb35b165..754c8cbeb7 100644
--- a/app/Api/V1/Controllers/PreferenceController.php
+++ b/app/Api/V1/Controllers/PreferenceController.php
@@ -101,7 +101,7 @@ class PreferenceController extends Controller
 
         $resource = new FractalCollection($preferences, $transformer, 'preferences');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
 
     }
 
@@ -122,7 +122,7 @@ class PreferenceController extends Controller
 
         $resource = new Item($preference, $transformer, 'preferences');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -161,7 +161,7 @@ class PreferenceController extends Controller
 
         $resource = new Item($result, $transformer, 'preferences');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
 
     }
 }
diff --git a/app/Api/V1/Controllers/RecurrenceController.php b/app/Api/V1/Controllers/RecurrenceController.php
index 6878712c67..2ef5f5d1dd 100644
--- a/app/Api/V1/Controllers/RecurrenceController.php
+++ b/app/Api/V1/Controllers/RecurrenceController.php
@@ -119,7 +119,7 @@ class RecurrenceController extends Controller
         $resource = new FractalCollection($piggyBanks, $transformer, 'recurrences');
         $resource->setPaginator(new IlluminatePaginatorAdapter($paginator));
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
 
     }
 
@@ -141,7 +141,7 @@ class RecurrenceController extends Controller
 
         $resource = new Item($recurrence, $transformer, 'recurrences');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
 
 
     }
@@ -166,7 +166,7 @@ class RecurrenceController extends Controller
 
         $resource = new Item($recurrence, $transformer, 'recurrences');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -222,7 +222,7 @@ class RecurrenceController extends Controller
         $resource = new FractalCollection($transactions, $transformer, 'transactions');
         $resource->setPaginator(new IlluminatePaginatorAdapter($paginator));
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -270,7 +270,7 @@ class RecurrenceController extends Controller
 
         $resource = new Item($category, $transformer, 'recurrences');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
 
     }
 }
diff --git a/app/Api/V1/Controllers/RuleController.php b/app/Api/V1/Controllers/RuleController.php
index 07bdae9d44..2c854455ee 100644
--- a/app/Api/V1/Controllers/RuleController.php
+++ b/app/Api/V1/Controllers/RuleController.php
@@ -122,7 +122,7 @@ class RuleController extends Controller
         $resource = new FractalCollection($rules, $transformer, 'rules');
         $resource->setPaginator(new IlluminatePaginatorAdapter($paginator));
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
 
     }
 
@@ -143,7 +143,7 @@ class RuleController extends Controller
 
         $resource = new Item($rule, $transformer, 'rules');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
 
     }
 
@@ -164,7 +164,7 @@ class RuleController extends Controller
 
         $resource = new Item($rule, $transformer, 'rules');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
 
     }
 
@@ -185,7 +185,7 @@ class RuleController extends Controller
 
         $resource = new Item($rule, $transformer, 'rules');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
 
     }
 
@@ -206,7 +206,7 @@ class RuleController extends Controller
 
         $resource = new Item($rule, $transformer, 'rules');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -255,7 +255,7 @@ class RuleController extends Controller
         $resource = new FractalCollection($transactions, $transformer, 'transactions');
         $resource->setPaginator(new IlluminatePaginatorAdapter($paginator));
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -315,6 +315,6 @@ class RuleController extends Controller
 
         $resource = new Item($rule, $transformer, 'rules');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 }
diff --git a/app/Api/V1/Controllers/RuleGroupController.php b/app/Api/V1/Controllers/RuleGroupController.php
index 4716bca2fa..d3b835c1fb 100644
--- a/app/Api/V1/Controllers/RuleGroupController.php
+++ b/app/Api/V1/Controllers/RuleGroupController.php
@@ -122,7 +122,7 @@ class RuleGroupController extends Controller
         $resource = new FractalCollection($ruleGroups, $transformer, 'rule_groups');
         $resource->setPaginator(new IlluminatePaginatorAdapter($paginator));
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -142,7 +142,7 @@ class RuleGroupController extends Controller
 
         $resource = new Item($ruleGroup, $transformer, 'rule_groups');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -162,7 +162,7 @@ class RuleGroupController extends Controller
 
         $resource = new Item($ruleGroup, $transformer, 'rule_groups');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -193,7 +193,7 @@ class RuleGroupController extends Controller
         $resource = new FractalCollection($rules, $transformer, 'rules');
         $resource->setPaginator(new IlluminatePaginatorAdapter($paginator));
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
 
     }
 
@@ -214,7 +214,7 @@ class RuleGroupController extends Controller
 
         $resource = new Item($ruleGroup, $transformer, 'rule_groups');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
 
     }
 
@@ -236,7 +236,7 @@ class RuleGroupController extends Controller
 
         $resource = new Item($ruleGroup, $transformer, 'rule_groups');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
 
     }
 
@@ -291,7 +291,7 @@ class RuleGroupController extends Controller
         $resource = new FractalCollection($transactions, $transformer, 'transactions');
         $resource->setPaginator(new IlluminatePaginatorAdapter($paginator));
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -357,6 +357,6 @@ class RuleGroupController extends Controller
 
         $resource = new Item($ruleGroup, $transformer, 'rule_groups');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 }
diff --git a/app/Api/V1/Controllers/Search/AccountController.php b/app/Api/V1/Controllers/Search/AccountController.php
index 3c52be2688..d6b652b325 100644
--- a/app/Api/V1/Controllers/Search/AccountController.php
+++ b/app/Api/V1/Controllers/Search/AccountController.php
@@ -97,6 +97,6 @@ class AccountController extends Controller
         $resource = new FractalCollection($accounts, $transformer, 'accounts');
         $resource->setPaginator(new IlluminatePaginatorAdapter($paginator));
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 }
diff --git a/app/Api/V1/Controllers/Search/TransactionController.php b/app/Api/V1/Controllers/Search/TransactionController.php
index 767fbd2471..6db862591e 100644
--- a/app/Api/V1/Controllers/Search/TransactionController.php
+++ b/app/Api/V1/Controllers/Search/TransactionController.php
@@ -65,6 +65,6 @@ class TransactionController extends Controller
         $resource = new Collection($transactions, $transformer, 'transactions');
         $resource->setPaginator(new IlluminatePaginatorAdapter($groups));
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 }
diff --git a/app/Api/V1/Controllers/TagController.php b/app/Api/V1/Controllers/TagController.php
index 0ba1bc2698..bb370d6f47 100644
--- a/app/Api/V1/Controllers/TagController.php
+++ b/app/Api/V1/Controllers/TagController.php
@@ -115,7 +115,7 @@ class TagController extends Controller
         $resource = new FractalCollection($rules, $transformer, 'tags');
         $resource->setPaginator(new IlluminatePaginatorAdapter($paginator));
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
 
@@ -145,7 +145,7 @@ class TagController extends Controller
         $resource = new FractalCollection($attachments, $transformer, 'attachments');
         $resource->setPaginator(new IlluminatePaginatorAdapter($paginator));
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -165,7 +165,7 @@ class TagController extends Controller
 
         $resource = new Item($tag, $transformer, 'tags');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
 
     }
 
@@ -186,7 +186,7 @@ class TagController extends Controller
 
         $resource = new Item($rule, $transformer, 'tags');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -239,7 +239,7 @@ class TagController extends Controller
         $resource = new FractalCollection($transactions, $transformer, 'transactions');
         $resource->setPaginator(new IlluminatePaginatorAdapter($paginator));
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -260,7 +260,7 @@ class TagController extends Controller
 
         $resource = new Item($rule, $transformer, 'tags');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
 
     }
 }
diff --git a/app/Api/V1/Controllers/TransactionController.php b/app/Api/V1/Controllers/TransactionController.php
index ee37ac37e6..2a1b310538 100644
--- a/app/Api/V1/Controllers/TransactionController.php
+++ b/app/Api/V1/Controllers/TransactionController.php
@@ -107,7 +107,7 @@ class TransactionController extends Controller
 
         $resource = new FractalCollection($attachments, $transformer, 'attachments');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -127,7 +127,7 @@ class TransactionController extends Controller
 
         $resource = new FractalCollection($journalLinks, $transformer, 'transaction_links');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -208,7 +208,7 @@ class TransactionController extends Controller
         $resource = new FractalCollection($transactions, $transformer, 'transactions');
         $resource->setPaginator(new IlluminatePaginatorAdapter($paginator));
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -231,7 +231,7 @@ class TransactionController extends Controller
 
         $resource = new FractalCollection($events, $transformer, 'piggy_bank_events');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -266,7 +266,7 @@ class TransactionController extends Controller
         $transformer->setParameters($this->parameters);
         $resource = new Item($selectedGroup, $transformer, 'transactions');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -352,7 +352,7 @@ class TransactionController extends Controller
         $transformer->setParameters($this->parameters);
         $resource = new Item($selectedGroup, $transformer, 'transactions');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
 
@@ -395,6 +395,6 @@ class TransactionController extends Controller
         $transformer->setParameters($this->parameters);
         $resource = new Item($selectedGroup, $transformer, 'transactions');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 }
diff --git a/app/Api/V1/Controllers/TransactionLinkController.php b/app/Api/V1/Controllers/TransactionLinkController.php
index 7ed1c6d8cd..c70fe46366 100644
--- a/app/Api/V1/Controllers/TransactionLinkController.php
+++ b/app/Api/V1/Controllers/TransactionLinkController.php
@@ -126,7 +126,7 @@ class TransactionLinkController extends Controller
         $resource = new FractalCollection($journalLinks, $transformer, 'transaction_links');
         $resource->setPaginator(new IlluminatePaginatorAdapter($paginator));
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
 
     }
 
@@ -148,7 +148,7 @@ class TransactionLinkController extends Controller
 
         $resource = new Item($journalLink, $transformer, 'transaction_links');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
 
     }
 
@@ -179,7 +179,7 @@ class TransactionLinkController extends Controller
 
         $resource = new Item($journalLink, $transformer, 'transaction_links');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -209,7 +209,7 @@ class TransactionLinkController extends Controller
 
         $resource = new Item($journalLink, $transformer, 'transaction_links');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
 
     }
 }
diff --git a/app/Api/V1/Controllers/UserController.php b/app/Api/V1/Controllers/UserController.php
index bb87e1d4d4..2c3f088a5b 100644
--- a/app/Api/V1/Controllers/UserController.php
+++ b/app/Api/V1/Controllers/UserController.php
@@ -113,7 +113,7 @@ class UserController extends Controller
         $resource = new FractalCollection($users, $transformer, 'users');
         $resource->setPaginator(new IlluminatePaginatorAdapter($paginator));
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -135,7 +135,7 @@ class UserController extends Controller
 
         $resource = new Item($user, $transformer, 'users');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -159,7 +159,7 @@ class UserController extends Controller
 
         $resource = new Item($user, $transformer, 'users');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
     /**
@@ -182,7 +182,7 @@ class UserController extends Controller
 
         $resource = new Item($user, $transformer, 'users');
 
-        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', 'application/vnd.api+json');
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
 
     }