Order book

This is a simple order book application that simulates a basic market where you can place limit orders, execute market orders, and view the current state of the order book. The order book is implemented with a FIFO matching engine.

Features

• Limit Orders: Users can place limit orders to either buy or sell at a specified price and quantity.
• Market Orders: Users can execute market orders, which will attempt to match with the best available orders in the order book.
• Order Book Depth: Users can view the current buy and sell orders in the order book, along with a proportional visual representation of the market depth.
• FIFO Matching Engine: The matching engine processes orders using the FIFO (First In First Out) rule, where the earliest placed orders are matched first.

Requirements

• Java 11 or later
• Maven 3.6 or later

Running the application

1. Clone or download the repository to your local machine.

2. Build the project

   mvn package

3. Run the application

   mvn exec:java

Future Planned Improvements

1. Trade history

• Implement support for trade history of executed trades. This will include storing and displaying details such as the price, quantity, and timestamp for each placed order.

2. Multiple Matching Rules Support

• Implement support for multiple matching rules (e.g., Pro-rata, Price-Time Priority etc).