diff --git a/.eslintrc.json b/.eslintrc.json
index 7e4d14d..8945670 100644
--- a/.eslintrc.json
+++ b/.eslintrc.json
@@ -76,10 +76,10 @@
         ],
         "lines-around-comment": "warn",
         "lines-around-directive": "warn",
-        "lines-between-class-members": [
-            "warn",
-            "always"
-        ],
+        // "lines-between-class-members": [
+        //     "warn",
+        //     "always"
+        // ],
         "max-classes-per-file": "warn",
         "max-nested-callbacks": "warn",
         "new-parens": "warn",
diff --git a/options.json b/options.json
index eacc17f..e832b07 100644
--- a/options.json
+++ b/options.json
@@ -9,7 +9,8 @@
         "http": {
             "port": 4000
         },
-        "validUserTypes": ["user", "service", "system"]
+        "validUserTypes": ["user", "service", "system"],
+        "registrationEnabled": true
     },
     "logger": {
         "customTypes": ["access", "unauthorised"],
diff --git a/src/server/Server.js b/src/server/Server.js
index ccc765c..af91328 100644
--- a/src/server/Server.js
+++ b/src/server/Server.js
@@ -50,6 +50,7 @@ class Server extends EventEmitter {
         this.port = httpOpts.port + this._shardId;
         this.domain = NODE_ENV === 'development' ? `localhost:${this.port}` : options.domain;
         this.serveFiles = null;
+        this.registrationEnabled = options.registrationEnabled;
         if (options.serveFiles) this.serveFiles = path.resolve(options.serveFiles);
 
         this.server = null;
@@ -84,9 +85,9 @@ class Server extends EventEmitter {
         this.app.use(helmet());
         this.app.use(express.json({ limit: '10mb' }));
         this.app.use(express.urlencoded({ extended: true }));
-        this.app.use(this.logRequest.bind(this)); // Logs every request
-        this.app.use(this.logError.bind(this)); // Logs endpoints that error and sends a 500
-        this.app.use(this.ready.bind(this)); // denies requests before the server is ready
+        this.app.use(this.#logRequest.bind(this)); // Logs every request
+        this.app.use(this.#logError.bind(this)); // Logs endpoints that error and sends a 500
+        this.app.use(this.#ready.bind(this)); // denies requests before the server is ready
 
         process.on('message', this._handleMessage.bind(this));
 
@@ -119,19 +120,19 @@ class Server extends EventEmitter {
     }
     
     // eslint-disable-next-line no-unused-vars
-    logError (err, req, res, next) {
+    #logError (err, req, res, next) {
         this.logger.error(`Unhandled error:\n${err.stack || err}`);
         res.status(500).send('An internal error was encountered');
     }
 
-    logRequest (req, res, next) {
+    #logRequest (req, res, next) {
         res.once('finish', () => {
             this.logger[[ 401, 403 ].includes(res.statusCode) ? 'unauthorised' : 'access'](`[${req.get('X-Forwarded-For') || req.socket.remoteAddress}] [STATUS: ${res.statusCode}] Request to [${req.method}] ${req.route?.path || req.path}`);
         });
         next();
     }
 
-    ready (req, res, next) {
+    #ready (req, res, next) {
         if (!this._ready) return res.status(503).send('Server not ready');
         next();
     }
@@ -156,6 +157,7 @@ class Server extends EventEmitter {
         if (msg._shutdown) this.shutdown();
     }
     
+    // Helper function to pass options to the logger in a unified way
     createLogger (comp) {
         return new LoggerClient({ name: comp.constructor.name, ...this._options.logger });
     }
diff --git a/src/server/database/MongoDB.js b/src/server/database/MongoDB.js
index a35abe0..c1938b4 100644
--- a/src/server/database/MongoDB.js
+++ b/src/server/database/MongoDB.js
@@ -127,6 +127,23 @@ class MongoDB {
 
     }
 
+    /**
+     * Insert document.
+     *
+     * @param {String} db The collection in which the data is to be updated
+     * @param {Object} filter The filter that is used to find the data
+     * @param {Object} data The updated data
+     * @returns {WriteResult} Object containing the followint counts: Matched, Upserted, Modified
+     * @memberof Database
+     */
+    async insertOne (db, data) {
+
+        this.logger.debug(`Incoming insertOne query for ${db} with parameters ${JSON.stringify(data)}`);
+        const result = await this.db.collection(db).insertOne(data);
+        return result;
+
+    }
+
     /**
      * Push data to an array
      *