feat(mongodb): add support for collection prefix in ErrsoleMongoDB

lib/index.js

@@ -63,22 +63,31 @@ class ErrsoleMongoDB extends EventEmitter {
    */
   constructor (uri, dbNameOrOptions, options = {}) {
     super();
+
     this.name = packageJSON.name;
     this.version = packageJSON.version || '0.0.0';
 
+    const { collectionPrefix, ...connectionOptions } = typeof dbNameOrOptions === 'object' ? dbNameOrOptions : options;
+
     this.uri = uri;
     this.dbName = typeof dbNameOrOptions === 'string' ? dbNameOrOptions : undefined;
-    this.connectionOptions = typeof dbNameOrOptions === 'object' ? dbNameOrOptions : options;
+    this.connectionOptions = connectionOptions;
+
+    const prefix = collectionPrefix
+      ? `${collectionPrefix.toLowerCase().replace(/[^a-z0-9]/g, '')}_`
+      : 'errsole_';
 
     this.client = new MongoClient(this.uri, this.connectionOptions);
-    this.logsCollectionName = 'errsole_logs';
-    this.notificationsCollectionName = 'errsole_notifications';
-    this.usersCollectionName = 'errsole_users';
-    this.configCollectionName = 'errsole_config';
+    this.logsCollectionName = `${prefix}logs`;
+    this.notificationsCollectionName = `${prefix}notifications`;
+    this.usersCollectionName = `${prefix}users`;
+    this.configCollectionName = `${prefix}config`;
+
     this.isConnectionInProgress = true;
     this.pendingLogs = [];
     this.batchSize = 100;
     this.flushInterval = 1000;
+
     this.init();
   }