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Silver Bars Marketplace - Live Order Board

an implementation of a Live Order Board for Silver Bars Marketplace has the following functionality:

  • register an order.
    • register(order: Order) : userId
  • cancel an order.
    • cancel(id: String)
  • get summary information of live orders.
    • summary : List<Order>
    • summaryBuy : List<Order>
    • summarySell : List<Order>

Tech Stack

Technical decisions

  • both price and quantity in kg is modeled as a double and no units/measurement system
  • different order summary information for BUYs and SELLs and ALL as aggregated
  • TDD Applied
  • gradle has been used for assembly
  • implementation is not synchronized
  • orders modeled as final classes
  • YAGNI applied

Prerequisites

Download the app

  • git clone git@github.com:eevirgen/sbmp-live-order-board.git

Build the app

  • gradle clean build (runs the Unit Tests and and creates the distribution as build/libs/sbmp-live-order-board.jar)

Main class

  • com.silverbarsmp.MainKt

Run the app

  • gradle run
  • or can be done in an IDE
  • or can be run by using jar which has been created by build :
    • java -jar build/libs/sbmp-live-order-board.jar

Run the tests only

  • to run with the console outputs
    • gradle test
  • to run without the console outputs
    • gradle cleanTest