Return a basic error message when DB connection is lost

server/middleware/dbCheck.js

@@ -0,0 +1,13 @@
+import mongoose from 'mongoose';
+import config from '../config.js';
+
+export default (req, res, next)=>{
+	// Bypass DB checks during testing
+	if(config.get('node_env') == 'test') return next();
+
+	if(mongoose.connection.readyState == 1) return next();
+	return res.status(503).send({
+		message : 'Unable to connect to database',
+		state   : mongoose.connection.readyState
+	});
+};