Distributed Systems

Airbnb Distributed Booking

Cloud-native Airbnb clone with 5 microservices, Kafka event streaming, Kubernetes orchestration, and an AI travel planner powered by LangChain + Ollama.

Source Code
ReactNode.jsKafkaMongoDBDockerK8sLangChain

Services

5 Microservices

4 Node.js/Express + 1 Python/FastAPI

Traveler Service

Node.js

User auth, profiles, favorites management

:7001

Owner Service

Node.js

Property management, availability control

:7002

Property Service

Node.js

Listings CRUD, search, filtering

:7003

Booking Service

Node.js

Reservations and payment handling

:7004

AI Agent

Python

LangChain travel planner with Ollama LLM

:7000

Messaging

Kafka Event Streaming

Producer
booking.createdbooking.confirmedreview.submitted
Consumer

Async communication between services via event topics

Architecture

Tech Stack

Frontend
React 18Redux ToolkitViteTailwind
Backend
Node.js/Express ×4Python/FastAPI ×1
Messaging
Apache KafkaZookeeper
Data
MongoDB 7.0
Infra
Docker ComposeKubernetesNginxOllama

Infrastructure

Container Orchestration

Docker Compose

10 interconnected services in airbnb_network

Kubernetes

K8s manifests for all services, MongoDB, Kafka

MongoDB 7.0

Shared persistence across all microservices

Kafka + Zookeeper

Event-driven async communication

Features

What It Does

▸5 microservices — 4 Node.js/Express + 1 Python/FastAPI AI agent
▸Kafka event streaming — booking.created, booking.confirmed, review.submitted topics
▸LangChain AI travel planner with local Ollama LLM integration
▸Kubernetes manifests with deploy script, secrets, and configmaps
▸Redux Toolkit state management with React Router DOM
▸Playwright E2E testing framework
Source Code
5 Services10 ContainersK8s Ready