REST Stockmarket

REST Stockmarket sample REST API for a stockmarket-like application, It demonstrates how this can be implemented in Python, using MongoDB + Bottle, and different techniques to implement transactional behaviours with this stack.

A Stockmarket

• GET /portofolio/X . Retrieves the portofolio for user "X" as a JSON object :

    { user : X , content :
     	{ market_name : 
     		{ stock_name : count, 
    		  stock_name : count
    		 }
    } 
  

• POST /stockexchange/distribute. Distribute a set of stocks to a user. Accepts a JSON object with similar structure

    { 
    	"user" : X, content : ... 
    }
  

• POST /stockexchange/trade. Exchange a set of stocks between two users. Accept a JSON object

    { 
    "portofolio_1" : { user : U1, content : ... }, 
    "portofolio_2" : { user : U2, content : ... }
    }
  

  The content described in portofolio_1 is transfered from U1 to U2, and the content from portofolio_2 is transfered from U2 to U1

Several implementation are featured:

• naive_stockmarket.py : A Naive implementation, with no validation or transactional guarantees

• lessnative_stockmarket.py : Features MongoDB atomic operations. No validation of transfers ..

• lock_stockmarket.py : Performs validation of transfers. Ensure consistency by locking.

• transac_stockmarket.py : Performs validation and use two-phase commits to ensure proper transactional behaviour