Pizza Order App – Monorepo

This repository contains the Pizza Order App system, structured using a microservices architecture. It includes an API Service for handling signup, an Email Service for sending email notifications, a Search Service for searching restaurants and pizzas based on location, and an Order Service for handling pizza orders. The services communicate via asynchronous messaging.

Services Overview

api-service – User Signup API – Message Producer

• Handles user signups via REST APIs.
• Publishes signup events (e.g., user.registered) to a message broker.
• Implements Domain-Driven Design architecture.

email-service – Email Sending Service – Message Consumer

• Listens to order events from the broker.
• Sends confirmation emails to customers.
• A lightweight background service.

search-service – Search API – Message Consumer

• Handles events from the broker (e.g., RabbitMQ) and indexes them.
• Exposes search API via Gin and Elasticsearch.
• Supports location-based and text-based search.

order-service – Pizza Ordering API – Message Producer

• Handles customer orders via REST APIs.
• Publishes order events (e.g., order.placed) to a message broker.
• Implements Domain-Driven Design architecture.

Tech Stack

• Language: Go (Golang)
• Database: PostgreSQL
• Search: Elasticsearch
• Architecture: Domain-Driven Design Architecture
• Messaging: RabbitMQ

Project Structure

pizza-order-app/
│── api-service/               # API Service (Producer)
│   ├── cmd/                   # Entry point
│   │   ├── main.go            # Starts HTTP API, publishes events
│   ├── internal/
│   │   ├── application/       # Application logic/use cases
│   │   ├── domain/            # Domain models and interfaces
│   │   ├── infrastructure/    # DB, messaging
│   │   ├── interfaces/        # API controllers
│
│── email-service/             # Email Sending Service (Consumer)
│   ├── cmd/                   # Entry point
│   │   ├── main.go            # Starts email consumer
│   ├── internal/
│   │   ├── application/       # Email handling logic
│   │   ├── domain/            # Email domain models and interfaces
│   │   ├── infrastructure/    # Email transport, message broker
│
│── search-service/            # Uses events to sync ES data (Consumer)
│   ├── cmd/                   # Entry point
│   │   ├── main.go            # Starts search API and consumer
│   ├── internal/
│   │   ├── application/       # Search handling logic
│   │   ├── domain/            # Search domain models and interfaces
│   │   ├── infrastructure/    # Elasticsearch adapter, event consumer
│
├── order-service/             # Order Service (Producer)
│
├── web-user/                  # Frontend UI for users (React)
│
│── .gitignore                 # .gitignore file
│── README.md                  # You are here

Project Status

Note: This project is under active development.
Some features may be incomplete or subject to change.
You're welcome to explore or provide feedback!