Orderbook Microservice

A simple order book implementation with HTTP API for managing orders and matching trades.

Features

• Order placement and cancellation
• Order book snapshots
• Best bid/ask queries
• Order matching engine
• Real-time trade execution

Quick Start

1. Start the server:

go run cmd/api/main.go

2. Place an order:

curl -X POST http://localhost:8080/orders/place \
  -H "Content-Type: application/json" \
  -d '{"side": "BUY", "price": 100.0, "amount": 1.0}'

API Endpoints

• POST /orders/place - Place new order
• DELETE /orders/cancel - Cancel existing order
• PATCH /orders/modify - Modify order
• GET /orderbook/snapshot - Get orderbook state
• GET /orderbook/best-bid - Get best bid
• GET /orderbook/best-ask - Get best ask
• POST /orders/process - Process order

TODO List

Priority items:

• Better Performance Implementation
• Add authentication
• Add logging system

Future enhancements:

• Add persistence layer
• Implement websocket for real-time updates
• Support for different order types (market, limit)
• Trade history