[Hotfix] Fix wrong context on hook handlers (#23)

Hooks handlers were bound to the PrometheusPlugin instance instead of the PrometheusController instance

lib/PrometheusPlugin.ts

@@ -90,12 +90,12 @@ export class PrometheusPlugin extends Plugin {
     };
 
     this.hooks = {
-      'connection:new': this.prometheusController.recordConnections.bind(this),
-      'connection:remove': this.prometheusController.recordConnections.bind(this),
-      'core:hotelClerk:addSubscription': this.prometheusController.recordRooms.bind(this),
-      'core:hotelClerk:removeRoomForCustomer': this.prometheusController.recordRooms.bind(this),
-      'request:onSuccess': this.prometheusController.recordRequests.bind(this),
-      'request:onError': this.prometheusController.recordRequests.bind(this)
+      'connection:new': this.prometheusController.recordConnections.bind(this.prometheusController),
+      'connection:remove': this.prometheusController.recordConnections.bind(this.prometheusController),
+      'core:hotelClerk:addSubscription': this.prometheusController.recordRooms.bind(this.prometheusController),
+      'core:hotelClerk:removeRoomForCustomer': this.prometheusController.recordRooms.bind(this.prometheusController),
+      'request:onSuccess': this.prometheusController.recordRequests.bind(this.prometheusController),
+      'request:onError': this.prometheusController.recordRequests.bind(this.prometheusController)
     };
   }
 }

lib/controllers/PrometheusController.ts

@@ -37,8 +37,8 @@ export class PrometheusController {
 
   /**
    * PrometheusController constructor
-   * @param config 
-   * @param context 
+   * @param config
+   * @param context
    */
   constructor (config: JSONObject, context: PluginContext) {
     this.config = config;

package.json

@@ -1,6 +1,6 @@
 {
   "name": "kuzzle-plugin-prometheus",
-  "version": "3.0.2",
+  "version": "3.0.3",
   "description": "Kuzzle plugin: monitoring Kuzzle using Prometheus",
   "author": {
     "name": "The Kuzzle Team <[email protected]>"