Benfish Revelry Application - The goal was to build a food delivery service application with a delivery partner app, an admin panel, and a website, ensuring a seamless user experience and efficient backend management.

Phase 1: Benfish Revelry Application

Problem: The goal was to build a food delivery service application with a delivery partner app, an admin panel, and a website, ensuring a seamless user experience and efficient backend management.

Solution:

1. Benfish Revelry Application:A food delivery service application developed in Java using the MVVM design pattern.

   Features:

   • User-friendly interface for customers to browse and order food.
   • Real-time order tracking.
   • Integration with a delivery partner app.
2. Backend:
   • Admin panel and website built in PHP for managing orders, users, and other administrative tasks.
   • Database management using Room for efficient local data storage and synchronization.

Technology/Tools Used

 

XML

 

PHP

 

Java

 

Android

Phase 2: Infrastructure Upgrade and New System Design

Problem: The existing architecture had a single instance (t2 2x large) running both MySQL and Apache servers, which led to high costs and slow performance due to the generated logs and service loads.

Solution:

1. Infrastructure Upgrade

   Server Instance Separation:

   • Created two t3 small instances to balance the load, mapping load balancers to the domain.
   • For MySQL, set up a t3 small instance in AWS RDS, where AWS managed logs and backups, reducing overhead.
   • Implemented log rotation for Apache and utilized AWS S3 for log and image storage, resulting in shared space for instances at a lower cost.
2. Microservices Module

   Modular Architecture:

   • Developed separate modules for products, services, and notification services.
   • Ensured loose coupling between modules with separate tables.
3. REST APIs:
   • Designed REST APIs using Kotlin Multi Platform.
   • Created Model, View, and Rest Controllers for API management.
   • APIs integrated with the existing website and applications.
4. Control Panel:
   • Migrated control panels to Kotlin desktop.
   • Implemented caching for orders to prevent full module reloads, only updating from the last synced time.
5. BAM (Benfish Async Messaging)

   Messaging System:

   • Built a half-duplex Server-Sent Events (SSE) system for order status and delivery tracking using Java Maven.
   • Enhanced real-time communication and tracking for orders.

Technology/Tools Used

 

Kotlin

 

Ubuntu

 

Jetpack Compose

 

AWS

 

PHP

 

Java