Working on API functionality

app/Http/Controllers/AccountApiController.php

@@ -71,6 +71,7 @@ class AccountApiController extends BaseAPIController
             'invoices' => ['invoice_items', 'user', 'client', 'payments'],
             'products' => [],
             'tax_rates' => [],
+            'expenses' => ['client', 'invoice', 'vendor']
         ];
 
         foreach ($map as $key => $values) {

app/Http/Controllers/InvoiceApiController.php

@@ -85,6 +85,19 @@ class InvoiceApiController extends BaseAPIController
         return $this->response($data);
     }
 
+    public function show($publicId)
+    {
+
+        $invoice = Invoice::scope($publicId)->withTrashed()->first();
+
+        if(!$invoice)
+            return $this->errorResponse(['message'=>'Invoice does not exist!'], 404);
+
+        $transformer = new InvoiceTransformer(\Auth::user()->account, Input::get('serializer'));
+        $data = $this->createItem($invoice, $transformer, 'invoice');
+
+        return $this->response($data);
+    }
 
     /**
      * @SWG\Post(

app/Http/Controllers/PaymentApiController.php

@@ -218,8 +218,8 @@ class PaymentApiController extends BaseAPIController
                 $query->withTrashed();
             }])->first();
 
-            $transformer = new InvoiceTransformer(\Auth::user()->account, Input::get('serializer'));
+            $transformer = new PaymentTransformer(\Auth::user()->account, Input::get('serializer'));
-            $data = $this->createItem($invoice, $transformer, 'invoice');
+            $data = $this->createItem($payment, $transformer, 'invoice');
 
             return $this->response($data);
         }

app/Models/Account.php

@@ -164,6 +164,10 @@ class Account extends Eloquent
         return $this->belongsTo('App\Models\TaxRate');
     }
 
+    public function expenses()
+    {
+        return $this->hasMany('App\Models\Expense','account_id','id')->withTrashed();
+    }
 
     public function setIndustryIdAttribute($value)
     {

app/Ninja/Transformers/ExpenseTransformer.php

@@ -8,6 +8,7 @@ class ExpenseTransformer extends EntityTransformer
 {
     public function transform(Expense $expense)
     {
+
         return [
             'id' => (int) $expense->public_id,
             'private_notes' => $expense->private_notes,
@@ -24,6 +25,9 @@ class ExpenseTransformer extends EntityTransformer
             'exchange_rate' => (float) $expense->exchange_rate,
             'invoice_currency_id' => (int) $expense->invoice_currency_id,
             'is_deleted' => (bool) $expense->is_deleted,
+            'client_id' => isset($expense->client->public_id) ? (int) $expense->client->public_id : null,
+            'invoice_id' => isset($expense->invoice->public_id) ? (int) $expense->invoice->public_id : null,
+            'vendor_id' => isset($expense->vendor->public_id) ? (int) $expense->vendor->public_id : null,
         ];
     }
 }