flaxoos / ktor-webinar-real-time-event-system

Example project for webinar on Ktor Plugins

Ktor Webinar: Real-time Event System with Plugins

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Overview

This repository showcases the power of Ktor plugins to build a real-time event processing system. The plugins are available in https://github.com/Flaxoos/extra-ktor-plugins

The system is comprised of:

• Event Producers: Multiple Ktor servers generate events and publish them to a Kafka cluster, configured using the Ktor Kafka plugin. Event production is orchestrated using the Ktor Task Scheduler plugin.
• Event Consumer: A Ktor server consumes events from Kafka (also using the Ktor Kafka plugin) and exposes a REST endpoint to retrieve the latest events. Rate limiting is implemented on this endpoint using the Ktor Rate Limiting plugin.
• Client: A Ktor client demonstrates consumption of the consumer's endpoint, leveraging the Ktor Circuit Breaker plugin to prevent excessive requests and handle potential failures gracefully.

Features

• Plugin-Driven Architecture: Demonstrates how Ktor plugins streamline the implementation of common, non-functional concerns for microservices.
• Real-time Event Processing: Provides a working example of event streaming and asynchronous communication with Kafka.
• API Resilience: Incorporates rate limiting and circuit breaking to safeguard the system's reliability.

Prerequisites

• Java (Version 17 or later)
• Gradle
• Docker
• Docker Compose

Getting Started

• Start Infrastructure:

  docker-compose up -d

• Run the Run system run configuration

• Explore the documentation, the various plugin configurations and source code

• Tweak the configurations as you see fit and see the effects on the system

Webinar Recording

• coming soon