diff --git a/nginx_proxy_manager_connector.module b/nginx_proxy_manager_connector.module
index f04c7c4..3f9a39b 100644
--- a/nginx_proxy_manager_connector.module
+++ b/nginx_proxy_manager_connector.module
@@ -2,14 +2,13 @@
 
 /**
  * @file
- * Functions for communicating with NginxProxyManagar instance
- * 
- * Use create_proxy_host() to add a new proxy_host
- * 
- * Use deploy_proxy_host() to enable the proxy_host
- * 
- * Use disable_proxy_host() to disable the proxy_host
- * 
+ * Functions for communicating with NginxProxyManagar instance.
+ *
+ * Use createProxyHost() to add a new proxy_host.
+ *
+ * Use deployProxyHost() to enable the proxy_host
+ *
+ * Use disableProxyHost() to disable the proxy_host
  */
 
 use Drupal\Core\Routing\RouteMatchInterface;
@@ -28,4 +27,4 @@ function nginx_proxy_manager_connector_help($route_name, RouteMatchInterface $ro
 
     default:
   }
-}
\ No newline at end of file
+}
diff --git a/src/Form/NginxProxySettingsForm.php b/src/Form/NginxProxySettingsForm.php
index 989ac43..b5e9bc0 100644
--- a/src/Form/NginxProxySettingsForm.php
+++ b/src/Form/NginxProxySettingsForm.php
@@ -63,14 +63,14 @@ class NginxProxySettingsForm extends ConfigFormBase {
     $form['email_nginx_proxy'] = [
       '#type' => 'email',
       '#title' => $this->t('Email'),
-      '#description' =>  $this->t('User credentials of Nginx Proxy Manager (Update .env file to modify the value)'),
+      '#description' => $this->t('User credentials of Nginx Proxy Manager (Update .env file to modify the value)'),
       '#disabled' => TRUE,
       '#default_value' => $_ENV['NGINX_PROXY_MANAGER_USER_EMAIL'],
     ];
     $form['password_nginx_proxy'] = [
       '#type' => 'textfield',
       '#title' => $this->t('Password'),
-      '#description' =>  $this->t('User credentials of Nginx Proxy Manager (Update .env file to modify the value)'),
+      '#description' => $this->t('User credentials of Nginx Proxy Manager (Update .env file to modify the value)'),
       '#disabled' => TRUE,
       '#maxlength' => 64,
       '#size' => 64,
diff --git a/src/Services/NginxProxyManagerService.php b/src/Services/NginxProxyManagerService.php
index be9c96c..472d5cc 100644
--- a/src/Services/NginxProxyManagerService.php
+++ b/src/Services/NginxProxyManagerService.php
@@ -44,17 +44,23 @@ class NginxProxyManagerService {
    * Create Proxy Host in NginxProxyManager.
    *
    * @param string $custom_domain
+   *   Add custom domain.
    * @param string $custom_subdomain
+   *   Add Sub Domain.
    * @param string $forward_host
+   *   Add host.
    * @param string $port
+   *   Add port number.
    * @param string $letsencrypt_email
+   *   Add email for certification.
    *
-   * @return array $response
+   * @return array
+   *   It is returning the boolean.
    */
-  public function create_proxy_host($custom_domain, $custom_subdomain, $forward_host = NULL, $port = NULL, $letsencrypt_email = NULL) {
+  public function createProxyHost($custom_domain, $custom_subdomain, $forward_host = NULL, $port = NULL, $letsencrypt_email = NULL) {
 
     // Initiate API calls configuration.
-    if (!$this->api_call_init()) {
+    if (!$this->apiCallInit()) {
       return ['failure' => 'Proxy host not created.'];
     }
 
@@ -77,14 +83,14 @@ class NginxProxyManagerService {
       $www_domain_name = 'www.' . $non_www_domain_name;
       $custom_domain_domain_names = '"' . $non_www_domain_name . '", "' . $www_domain_name . '"';
 
-      $proxy_host_id = $this->get_proxy_host_id($non_www_domain_name);
+      $proxy_host_id = $this->getProxyHostId($non_www_domain_name);
 
       if ($proxy_host_id == 0) {
         // Create Proxy Host for custom domain.
-        $api_response_custom_domain = Json::decode($this->api_call_create_proxy_host_without_certificate($custom_domain_domain_names, $forward_host, $port));
+        $api_response_custom_domain = Json::decode($this->apiCallCreateProxyHostWithoutCertificate($custom_domain_domain_names, $forward_host, $port));
       }
       else {
-        $api_response_custom_domain = Json::decode($this->api_call_enable_proxy_host($proxy_host_id));
+        $api_response_custom_domain = Json::decode($this->apiCallEnableProxyHost($proxy_host_id));
       }
       // If error, send appropriate failure response.
       // Show subdomain error, if both throw error.
@@ -94,17 +100,17 @@ class NginxProxyManagerService {
       }
     }
 
-    if ($this->get_proxy_host_id($custom_subdomain) == 0) {
+    if ($this->getProxyHostId($custom_subdomain) == 0) {
 
       $custom_subdomain_domain_names = '"' . $custom_subdomain . '"';
 
       // Get certificate for custom subdomain and create if needed.
-      $this->api_call_create_certificate($custom_subdomain, $letsencrypt_email);
+      $this->apiCallCreateCertificate($custom_subdomain, $letsencrypt_email);
 
-      $certificate_id = $this->get_certificate_id($custom_subdomain);
+      $certificate_id = $this->getCertificateId($custom_subdomain);
 
       // Create Proxy Host for custom subdomain.
-      $api_response_custom_subdomain = Json::decode($this->api_call_create_proxy_host($custom_subdomain_domain_names, $forward_host, $certificate_id, $port));
+      $api_response_custom_subdomain = Json::decode($this->apiCallCreateProxyHost($custom_subdomain_domain_names, $forward_host, $certificate_id, $port));
       // If error, send appropriate failure response.
       // Show subdomain error, if both throw error.
       if (isset($api_response_custom_subdomain['error'])) {
@@ -127,22 +133,25 @@ class NginxProxyManagerService {
    * Deploy Proxy Host in NginxProxyManager.
    *
    * @param string $custom_domain
+   *   Call custom domain.
    * @param int $proxy_host_id
+   *   Define proxy host id.
    *
    * @return bool
+   *   It is returning boolean
    */
-  public function deploy_proxy_host($custom_domain, $proxy_host_id = 0) {
+  public function deployProxyHost($custom_domain, $proxy_host_id = 0) {
 
     // Initiate API calls configuration.
-    if (!$this->api_call_init()) {
+    if (!$this->apiCallInit()) {
       return ['failure' => 'Proxy host not enabled.'];
     }
 
     // If Proxy Host Id is not provided find it by custom_domain.
     if ($proxy_host_id == 0) {
-      $proxy_host_id = $this->get_proxy_host_id($custom_domain);
+      $proxy_host_id = $this->getProxyHostId($custom_domain);
     }
-    $response = Json::decode($this->api_call_enable_proxy_host($proxy_host_id));
+    $response = Json::decode($this->apiCallEnableProxyHost($proxy_host_id));
     if (isset($response['error'])) {
       \Drupal::logger('nginx_proxy_manager_connector')->error("Nginx Proxy Manager Error, Code:" . $response['error']['code'] . ", Message:" . $response['error']['message']);
     }
@@ -153,21 +162,24 @@ class NginxProxyManagerService {
    * Disable Proxy Host in NginxProxyManager.
    *
    * @param string $custom_domain
+   *   Call custom domain.
    * @param int $proxy_host_id
+   *   Define proxy host id.
    *
    * @return bool
+   *   It is returning boolean
    */
-  public function disable_proxy_host($custom_domain, $proxy_host_id = 0) {
+  public function disableProxyHost($custom_domain, $proxy_host_id = 0) {
     // Initiate API calls configuration.
-    if (!$this->api_call_init()) {
+    if (!$this->apiCallInit()) {
       return ['failure' => 'Proxy host not disabled.'];
     }
 
     // If Proxy Host Id is not provided find it by custom_domain.
     if ($proxy_host_id == 0) {
-      $proxy_host_id = $this->get_proxy_host_id($custom_domain);
+      $proxy_host_id = $this->getProxyHostId($custom_domain);
     }
-    $response = Json::decode($this->api_call_disable_proxy_host($proxy_host_id));
+    $response = Json::decode($this->apiCallDisableProxyHost($proxy_host_id));
     if (isset($response['error'])) {
       \Drupal::logger('nginx_proxy_manager_connector')->error("Nginx Proxy Manager Error, Code:" . $response['error']['code'] . ", Message:" . $response['error']['message']);
     }
@@ -178,22 +190,27 @@ class NginxProxyManagerService {
    * Update Proxy Host in NginxProxyManager.
    *
    * @param string $old_custom_domain
+   *   Call old custom domain.
    * @param string $new_custom_domain
+   *   Call new custom domain.
    * @param int $proxy_host_id
+   *   Call current proxy host id.
    * @param int $enable_ssl
+   *   Add ssh status enable/disable.
    *
    * @return bool
+   *   It is returning boolean.
    */
-  public function update_proxy_host($old_custom_domain, $new_custom_domain, $proxy_host_id = 0, $enable_ssl = 0) {
+  public function updateProxyHost($old_custom_domain, $new_custom_domain, $proxy_host_id = 0, $enable_ssl = 0) {
 
     // Initiate API calls configuration.
-    if (!$this->api_call_init()) {
+    if (!$this->apiCallInit()) {
       return ['failure' => 'Proxy host not updated.'];
     }
 
     // If Proxy Host Id is not provided find it by custom_domain.
     if ($old_custom_domain !== "" && $proxy_host_id == 0) {
-      $proxy_host_id = $this->get_proxy_host_id($old_custom_domain);
+      $proxy_host_id = $this->getProxyHostId($old_custom_domain);
     }
 
     // Set domain names.
@@ -207,14 +224,14 @@ class NginxProxyManagerService {
       $forward_host = $_ENV['NGINX_PROXY_MANAGER_DEFAULT_FORWARD_HOST'];
       $port = $config->get('default_forward_host_port');
       // Create Proxy Host for custom domain.
-      $response = Json::decode($this->api_call_create_proxy_host_without_certificate($custom_domain_domain_names, $forward_host, $port));
+      $response = Json::decode($this->apiCallCreateProxyHostWithoutCertificate($custom_domain_domain_names, $forward_host, $port));
     }
     else {
-      $response = Json::decode($this->api_call_update_proxy_host($custom_domain_domain_names, $proxy_host_id));
+      $response = Json::decode($this->apiCallUpdateProxyHost($custom_domain_domain_names, $proxy_host_id));
     }
 
     if ($enable_ssl) {
-      $cert_response = $this->update_proxy_host_certificate($new_custom_domain);
+      $cert_response = $this->updateProxyHostCertificate($new_custom_domain);
       if (isset($cert_response['error'])) {
         \Drupal::logger('nginx_proxy_manager_connector')->error("Nginx Proxy Manager Error, Code:" . $response['error']['code'] . ", Message:" . $response['error']['message']);
       }
@@ -230,16 +247,21 @@ class NginxProxyManagerService {
    * Update Proxy Host in NginxProxyManager.
    *
    * @param string $custom_domain
+   *   Get custom domain.
    * @param string $action
+   *   Define the action.
    * @param string $letsencrypt_email
+   *   Add user email id for letsencrypt.
    * @param int $proxy_host_id
+   *   Use current proxy host id.
    *
    * @return bool
+   *   Boolean.
    */
-  public function update_proxy_host_certificate($custom_domain, $action = "add", $letsencrypt_email = NULL, $proxy_host_id = 0) {
+  public function updateProxyHostCertificate($custom_domain, $action = "add", $letsencrypt_email = NULL, $proxy_host_id = 0) {
 
     // Initiate API calls configuration.
-    if (!$this->api_call_init()) {
+    if (!$this->apiCallInit()) {
       return ['failure' => 'Proxy host not updated.'];
     }
     if ($custom_domain == '') {
@@ -253,12 +275,12 @@ class NginxProxyManagerService {
     if ($action == "add") {
 
       // Check if certificate exists.
-      $certificate_id_from_list = $this->get_certificate_id($custom_domain);
+      $certificate_id_from_list = $this->getCertificateId($custom_domain);
       // Create if it doesn't exist.
       if ($certificate_id_from_list == 0) {
         // Create certificate.
-        $this->api_call_create_certificate($custom_domain, $letsencrypt_email);
-        $certificate_id_from_list = $this->get_certificate_id($custom_domain);
+        $this->apiCallCreateCertificate($custom_domain, $letsencrypt_email);
+        $certificate_id_from_list = $this->getCertificateId($custom_domain);
 
         if ($certificate_id_from_list == 0) {
           return ["failure" => "Certificate not generated"];
@@ -272,10 +294,10 @@ class NginxProxyManagerService {
 
     // If Proxy Host Id is not provided find it by custom_domain.
     if ($proxy_host_id == 0) {
-      $proxy_host_id = $this->get_proxy_host_id($custom_domain);
+      $proxy_host_id = $this->getProxyHostId($custom_domain);
     }
 
-    $response = Json::decode($this->api_call_update_proxy_host_certificate($certificate_id, $proxy_host_id));
+    $response = Json::decode($this->apiCallUpdateProxyHostCertificate($certificate_id, $proxy_host_id));
     if (isset($response['error'])) {
       \Drupal::logger('nginx_proxy_manager_connector')->error("Nginx Proxy Manager Error, Code:" . $response['error']['code'] . ", Message:" . $response['error']['message']);
     }
@@ -286,17 +308,19 @@ class NginxProxyManagerService {
    * Get Proxy Host Id using domain name.
    *
    * @param string $custom_domain
+   *   Use the custom domain to get proxy host id.
    *
    * @return int
+   *   Return int.
    */
-  public function get_proxy_host_id($custom_domain) {
+  public function getProxyHostId($custom_domain) {
     // Initiate API calls configuration.
-    if (!$this->api_call_init()) {
+    if (!$this->apiCallInit()) {
       return ['failure' => 'Proxy host not created.'];
     }
 
     // Get list of proxy hosts.
-    $proxy_hosts_list = Json::decode($this->api_call_get_proxy_hosts());
+    $proxy_hosts_list = Json::decode($this->apiCallGetProxyHosts());
 
     foreach ($proxy_hosts_list as $proxy_host) {
       if (in_array($custom_domain, $proxy_host['domain_names'])) {
@@ -310,17 +334,19 @@ class NginxProxyManagerService {
    * Get Proxy Host Id using domain name.
    *
    * @param string $custom_domain
+   *   Use the custom domain to get proxy host name.
    *
    * @return int
+   *   Return int.
    */
-  public function get_proxy_host_certificate($custom_domain) {
+  public function getProxyHostCertificate($custom_domain) {
     // Initiate API calls configuration.
-    if (!$this->api_call_init()) {
+    if (!$this->apiCallInit()) {
       return ['failure' => 'Proxy host not created.'];
     }
 
     // Get list of proxy hosts.
-    $proxy_hosts_list = Json::decode($this->api_call_get_proxy_hosts());
+    $proxy_hosts_list = Json::decode($this->apiCallGetProxyHosts());
 
     foreach ($proxy_hosts_list as $proxy_host) {
       if (in_array($custom_domain, $proxy_host['domain_names'])) {
@@ -334,17 +360,19 @@ class NginxProxyManagerService {
    * Get Certificate Id using domain name.
    *
    * @param string $custom_domain
+   *   Use the custom domain to get certificate id.
    *
    * @return int
+   *   Return int.
    */
-  public function get_certificate_id($custom_domain) {
+  public function getCertificateId($custom_domain) {
     // Initiate API calls configuration.
-    if (!$this->api_call_init()) {
+    if (!$this->apiCallInit()) {
       return ['failure' => 'Proxy host not created.'];
     }
 
     // Get list of proxy hosts.
-    $certificates_list = Json::decode($this->api_call_get_certificates());
+    $certificates_list = Json::decode($this->apiCallGetCertificates());
 
     foreach ($certificates_list as $certificate) {
       if (in_array($custom_domain, $certificate['domain_names'])) {
@@ -361,18 +389,19 @@ class NginxProxyManagerService {
    * Check Nginx Proxy Manager status and generate token.
    *
    * @return array
+   *   Return the array.
    */
-  public function api_call_init() {
+  public function apiCallInit() {
 
     // Check if Nginx Proxy Manager is online.
-    if (Json::decode($this->api_call_health_status())['status'] == 'OK') {
+    if (Json::decode($this->apiCallHealthStatus())['status'] == 'OK') {
 
       // Check if user credentials are configured.
       if ($_ENV['NGINX_PROXY_MANAGER_USER_EMAIL'] !== NULL && $_ENV['NGINX_PROXY_MANAGER_PASSWORD'] !== NULL) {
 
         // Generate token.
-        if (isset(Json::decode($this->api_call_generate_token())['token'])) {
-          \Drupal::state()->set('api_calls_token', Json::decode($this->api_call_generate_token())['token']);
+        if (isset(Json::decode($this->apiCallGenerateToken())['token'])) {
+          \Drupal::state()->set('api_calls_token', Json::decode($this->apiCallGenerateToken())['token']);
           return TRUE;
         }
         else {
@@ -392,8 +421,9 @@ class NginxProxyManagerService {
    * API Call for checking Nginx Proxy Manager status.
    *
    * @return \Drupal\Component\Serialization\Json
+   *   Return the json data.
    */
-  public function api_call_health_status() {
+  public function apiCallHealthStatus() {
 
     // Make request and return response.
     return $this->httpClient->request('GET', $this->api_calls_base_url)->getBody()->getContents();
@@ -402,9 +432,10 @@ class NginxProxyManagerService {
   /**
    * API Call for generating token for authentication.
    *
-   * @return \Drupal\Component\Serialization\Json $response_json
+   * @return \Drupal\Component\Serialization\Json
+   *   Return the json data.
    */
-  public function api_call_generate_token() {
+  public function apiCallGenerateToken() {
 
     // Set data.
     $data = [
@@ -434,13 +465,18 @@ class NginxProxyManagerService {
    * API Call.
    *
    * @param string $domain_names
+   *   Use domain name to create proxy host.
    * @param string $forward_host
+   *   Use host.
    * @param int $certificate_id
+   *   Add certificate id for ssl.
    * @param string $port
+   *   Add port number.
    *
-   * @return \Drupal\Component\Serialization\Json $json
+   * @return \Drupal\Component\Serialization\Json
+   *   Return the json data.
    */
-  public function api_call_create_proxy_host($domain_names, $forward_host, $certificate_id, $port) {
+  public function apiCallCreateProxyHost($domain_names, $forward_host, $certificate_id, $port) {
 
     // Set data.
     $data = [
@@ -486,12 +522,16 @@ class NginxProxyManagerService {
    * API Call.
    *
    * @param string $domain_names
+   *   Use domain name to create proxy host.
    * @param string $forward_host
+   *   Use host.
    * @param string $port
+   *   Add port number.
    *
-   * @return \Drupal\Component\Serialization\Json $json
+   * @return \Drupal\Component\Serialization\Json
+   *   Return the json data.
    */
-  public function api_call_create_proxy_host_without_certificate($domain_names, $forward_host, $port) {
+  public function apiCallCreateProxyHostWithoutCertificate($domain_names, $forward_host, $port) {
 
     // Set data.
     $data = [
@@ -536,9 +576,10 @@ class NginxProxyManagerService {
   /**
    * API Call.
    *
-   * @return \Drupal\Component\Serialization\Json $json
+   * @return \Drupal\Component\Serialization\Json
+   *   Return the Json data.
    */
-  public function api_call_get_proxy_hosts() {
+  public function apiCallGetProxyHosts() {
 
     // Make request.
     $response_json = $this->httpClient->request(
@@ -562,10 +603,12 @@ class NginxProxyManagerService {
    * API Call.
    *
    * @param int $proxy_host_id
+   *   Use the proxy host id to enable the host.
    *
    * @return bool
+   *   Return the boolean.
    */
-  public function api_call_enable_proxy_host($proxy_host_id) {
+  public function apiCallEnableProxyHost($proxy_host_id) {
 
     // Make request.
     $response_json = $this->httpClient->request(
@@ -589,10 +632,12 @@ class NginxProxyManagerService {
    * API Call.
    *
    * @param int $proxy_host_id
+   *   Use the proxy host id to enable the host.
    *
    * @return bool
+   *   Return the boolean.
    */
-  public function api_call_disable_proxy_host($proxy_host_id) {
+  public function apiCallDisableProxyHost($proxy_host_id) {
     // Make request.
     $response_json = $this->httpClient->request(
           'POST',
@@ -615,11 +660,14 @@ class NginxProxyManagerService {
    * API Call.
    *
    * @param string $domain_names
+   *   Use domain name.
    * @param int $proxy_host_id
+   *   Use proxy host id.
    *
-   * @return \Drupal\Component\Serialization\Json $json
+   * @return \Drupal\Component\Serialization\Json
+   *   Return json data.
    */
-  public function api_call_update_proxy_host($domain_names, $proxy_host_id) {
+  public function apiCallUpdateProxyHost($domain_names, $proxy_host_id) {
     // Set data.
     $data = ["domain_names" => ""];
     $data = str_replace('"domain_names":""', '"domain_names": [' . $domain_names . ']', json_encode($data, JSON_FORCE_OBJECT));
@@ -646,11 +694,14 @@ class NginxProxyManagerService {
    * API Call.
    *
    * @param int $certificate_id
+   *   Call certificate id.
    * @param int $proxy_host_id
+   *   Call host id.
    *
-   * @return \Drupal\Component\Serialization\Json $json
-   */
-  public function api_call_update_proxy_host_certificate($certificate_id, $proxy_host_id) {
+   * @return \Drupal\Component\Serialization\Json
+   *   Return json data.
+   *    */
+  public function apiCallUpdateProxyHostCertificate($certificate_id, $proxy_host_id) {
 
     // Set data.
     $data = [
@@ -680,11 +731,14 @@ class NginxProxyManagerService {
    * API Call.
    *
    * @param string $custom_domain
+   *   Use domain name.
    * @param string $letsencrypt_email
+   *   Use email id.
    *
-   * @return \Drupal\Component\Serialization\Json $json
+   * @return \Drupal\Component\Serialization\Json
+   *   Return json data.
    */
-  public function api_call_create_certificate($custom_domain, $letsencrypt_email) {
+  public function apiCallCreateCertificate($custom_domain, $letsencrypt_email) {
     $non_www_domain_name = preg_replace('/^www\./', '', $custom_domain);
     $www_domain_name = 'www.' . $non_www_domain_name;
 
@@ -726,9 +780,10 @@ class NginxProxyManagerService {
   /**
    * API Call for getting list og all certificates.
    *
-   * @return \Drupal\Component\Serialization\Json $json
+   * @return \Drupal\Component\Serialization\Json
+   *   Return json data.
    */
-  public function api_call_get_certificates() {
+  public function apiCallGetCertificates() {
     // Make request.
     $response_json = $this->httpClient->request(
           'GET',