Transactions

Coding Challenge #3

Table of Contents

1. Summary
2. Approach
3. Usage

Summary

The purpose of this coding challenge is to design an API that allows for the transfer of money between two bank accounts.

The bank's database has the following structure:

TABLE transactions
	- reference (unique)
	- amount
	- account number

The transactions table registers any transaction in an account (i.e. Person A paid $20 for a movie).

TABLE balances
	- account number (unique)
	- balance

The balances table represents the account balance of customers (i.e. Person A has $5000 in account).

The bank uses a relational database (MySQL) to store information. The task is to write the transfer API method.