Notification System

A scalable backend system for managing and delivering various types of notifications using modern technologies.

Overview

This project demonstrates a notification processing pipeline built with Java Spring Boot, Apache Kafka, and MongoDB. It processes notification requests from multiple sources and delivers them through different channels (email, SMS, push notifications).

Tech Stack

Java 17+: Core programming language
Spring Boot 3.2.x: Application framework
Apache Kafka: Message queue for notification processing
MongoDB: Database for storing notification records
Maven: Build and dependency management

Features

REST API for notification submission
Asynchronous processing with Kafka
Multiple notification types (Email, SMS, Push)
Status tracking and delivery confirmation
Retry mechanisms for failed notifications
Metrics and monitoring endpoints

Getting Started

Prerequisites

Java JDK 17 or 21
Maven (or use the Maven wrapper)
MongoDB (local installation or Docker)
Kafka (local installation or Docker)

Running the Application

Clone the repository

git clone https://www.alexselimov.com/git/aselimov/NotificationServer.git
cd NotificationServer

Build and run the application
```
mvn spring-boot:run
```
The service will be available at http://localhost:8080

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