created all the customer endpoint requests.

src/Gateway.php

@@ -26,6 +26,11 @@ public function getDefaultParameters()
         ];
     }
 
+    /**
+     * Access Token getters and setters
+     * @return mixed
+     */
+
     public function getAccessToken()
     {
         return $this->getParameter('accessToken');
@@ -36,6 +41,11 @@ public function setAccessToken($value)
         return $this->setParameter('accessToken', $value);
     }
 
+    /**
+     * location Id getters and setters
+     * @return mixed
+     */
+
     public function getLocationId()
     {
         return $this->getParameter('locationId');
@@ -46,6 +56,11 @@ public function setLocationId($value)
         return $this->setParameter('locationId', $value);
     }
 
+    /**
+     * App Id getters and setters
+     * @return mixed
+     */
+
     public function getAppId()
     {
         return $this->getParameter('appId');
@@ -56,6 +71,12 @@ public function setAppId($value)
         return $this->setParameter('appId', $value);
     }
 
+
+    /**
+     * Idempotency key getters and setters
+     * @return mixed
+     */
+
     public function getIdempotencyKey()
     {
         return $this->getParameter('idempotencyKey');
@@ -66,6 +87,12 @@ public function setIdempotencyKey($value)
         return $this->setParameter('idempotencyKey', $value);
     }
 
+    /**
+     * Purchase request functions
+     * @param array $parameters
+     * @return \Omnipay\Common\Message\AbstractRequest|\Omnipay\Common\Message\RequestInterface
+     */
+
     public function purchase(array $parameters = [])
     {
         return $this->createRequest('\Omnipay\Square\Message\ChargeRequest', $parameters);
@@ -76,21 +103,72 @@ public function completePurchase(array $parameters = [])
         return $this->createRequest('\Omnipay\Square\Message\TransactionRequest', $parameters);
     }
 
+    /**
+     * Customer request functions
+     * @param array $parameters
+     * @return \Omnipay\Common\Message\AbstractRequest
+     */
+
     public function createCustomer(array $parameters = [])
     {
         return $this->createRequest('\Omnipay\Square\Message\CreateCustomerRequest', $parameters);
     }
 
+    public function updateCustomer(array $parameters = [])
+    {
+        return $this->createRequest('\Omnipay\Square\Message\UpdateCustomerRequest', $parameters);
+    }
+
+    public function fetchCustomer(array $parameters = [])
+    {
+        return $this->createRequest('\Omnipay\Square\Message\FetchCustomerRequest', $parameters);
+    }
+
+    public function deleteCustomer(array $parameters = [])
+    {
+        return $this->createRequest('Omnipay\Square\Message\DeleteCustomerRequest', $parameters);
+    }
+
+    /**
+     * Card request functions
+     * @param array $parameters
+     * @return \Omnipay\Common\Message\AbstractRequest|\Omnipay\Common\Message\RequestInterface
+     */
+
     public function createCard(array $parameters = [])
     {
         return $this->createRequest('\Omnipay\Square\Message\CreateCardRequest', $parameters);
     }
 
+    public function fetchCard(array $parameters = [])
+    {
+        return $this->createRequest('\Omnipay\Square\Message\FetchCardRequest', $parameters);
+    }
+
+    public function deleteCard(array $parameters = [])
+    {
+        return $this->createRequest('\Omnipay\Square\Message\DeleteCardRequest', $parameters);
+    }
+
+
+    /**
+     * Transaction request functions
+     * @param array $parameters
+     * @return \Omnipay\Common\Message\AbstractRequest
+     */
+
     public function listTransactions(array $parameters = [])
     {
         return $this->createRequest('\Omnipay\Square\Message\ListTransactionsRequest', $parameters);
     }
 
+
+    /**
+     * Refund request functions
+     * @param array $parameters
+     * @return \Omnipay\Common\Message\AbstractRequest
+     */
+
     public function listRefunds(array $parameters = [])
     {
         return $this->createRequest('\Omnipay\Square\Message\ListRefundsRequest', $parameters);

src/Message/CreateCardResponse.php → src/Message/CardResponse.php

@@ -8,7 +8,7 @@
 /**
  * Square Purchase Response
  */
-class CreateCardResponse extends AbstractResponse implements RedirectResponseInterface
+class CardResponse extends AbstractResponse implements RedirectResponseInterface
 {
 
     public function isSuccessful()
@@ -28,11 +28,21 @@ public function getErrorCode()
 
     public function getCard()
     {
-        return $this->data['card'];
+        if(isset($this->data['card'])){
+            if(!empty($this->data['card'])){
+                return $this->data['card'];
+            }
+        }
+        return null;
     }
 
     public function getCardReference()
     {
-        return $this->data['card']['id'];
+        if(isset($this->data['card'])){
+            if(!empty($this->data['card'])){
+                return $this->data['card']['id'];
+            }
+        }
+        return null;
     }
 }

src/Message/ChargeRequest.php

@@ -70,14 +70,15 @@ public function setNonce($value)
         return $this->setParameter('nonce', $value);
     }
 
-    public function getCustomerId()
+    public function setCustomerReference($value)
     {
-        return $this->getParameter('customerId');
+        return $this->setParameter('customerReference', $value);
     }
 
-    public function setCustomerId($value)
+
+    public function getCustomerReference()
     {
-        return $this->setParameter('customerId', $value);
+        return $this->getParameter('customerReference');
     }
 
     public function getCustomerCardId()
@@ -130,7 +131,7 @@ public function getData()
             'currency' => $this->getCurrency()
         ];
         $data['card_nonce'] = $this->getNonce();
-        $data['customer_id'] = $this->getCustomerId();
+        $data['customer_id'] = $this->getCustomerReference();
         $data['customer_card_id'] = $this->getCustomerCardId();
         $data['reference_id'] = $this->getReferenceId();
         $data['order_id'] = $this->getOrderId();

src/Message/CreateCardRequest.php

@@ -20,34 +20,24 @@ public function setAccessToken($value)
         return $this->setParameter('accessToken', $value);
     }
 
-    public function getCustomerId()
+    public function setCustomerReference($value)
     {
-        return $this->getParameter('customerId');
+        return $this->setParameter('customerReference', $value);
     }
 
-    public function setCustomerId($value)
+    public function getCustomerReference()
     {
-        return $this->setParameter('customerId', $value);
+        return $this->getParameter('customerReference');
     }
 
-    public function getLocationId()
+    public function getCard()
     {
-        return $this->getParameter('locationId');
+        return $this->getParameter('card');
     }
 
-    public function setLocationId($value)
+    public function setCard($value)
     {
-        return $this->setParameter('locationId', $value);
-    }
-
-    public function getCardNonce()
-    {
-        return $this->getParameter('cardNonce');
-    }
-
-    public function setCardNonce($value)
-    {
-        return $this->setParameter('cardNonce', $value);
+        return $this->setParameter('card', $value);
     }
 
     public function getCardholderName()
@@ -64,8 +54,8 @@ public function getData()
     {
         $data = [];
 
-        $data['customer_id'] = $this->getCustomerId();
-        $data['card_nonce'] = $this->getCardNonce();
+        $data['customer_id'] = $this->getCustomerReference();
+        $data['card_nonce'] = $this->getCard();
         $data['cardholder_name'] = $this->getCardholderName();
 
         return $data;
@@ -105,6 +95,6 @@ public function sendData($data)
 
     public function createResponse($response)
     {
-        return $this->response = new CreateCardResponse($this, $response);
+        return $this->response = new CardResponse($this, $response);
     }
 }

src/Message/CreateCustomerRequest.php

@@ -105,6 +105,6 @@ public function sendData($data)
 
     public function createResponse($response)
     {
-        return $this->response = new CreateCustomerResponse($this, $response);
+        return $this->response = new CustomerResponse($this, $response);
     }
 }

src/Message/CustomerResponse.php

@@ -0,0 +1,56 @@
+<?php
+
+namespace Omnipay\Square\Message;
+
+use Omnipay\Common\Message\AbstractResponse;
+use Omnipay\Common\Message\RedirectResponseInterface;
+
+/**
+ * Square Purchase Response
+ */
+class CustomerResponse extends AbstractResponse implements RedirectResponseInterface
+{
+
+    public function isSuccessful()
+    {
+        return $this->data['status'] === 'success';
+    }
+
+    public function getErrorDetail()
+    {
+        return $this->data['detail'];
+    }
+
+    public function getErrorCode()
+    {
+        return $this->data['code'];
+    }
+
+    public function getCustomer()
+    {
+        if(isset($this->data['customer'])){
+            if(!empty($this->data['customer'])){
+                return $this->data['customer'];
+            }
+        }
+        return null;
+    }
+
+    public function getCustomerReference(){
+        if(isset($this->data['customer'])){
+            if(!empty($this->data['customer'])){
+                return $this->data['customer']['id'];
+            }
+        }
+        return null;
+    }
+
+    public function getCustomerCards(){
+        if(isset($this->data['customer'])){
+            if(!empty($this->data['customer'])){
+                return $this->data['customer']['cards'];
+            }
+        }
+        return null;
+    }
+}