week-7-task-node08

Setup

1. Your are required to use TypeScript for the task and build the APIs (endpoints) with express
2. Use and setup the project with Yarn
3. Install docker on your Mac Download
4. Create a docker Registry on Create Account
5. Containerize your application with Docker.

Problem Description:

Imagine you are asked to develop a transfer service with APIs to transfer money between two accounts You application is expected to have the following database structure

• TABLE 1 - transactions

  • reference (unique)
  • senderAccount nr
  • amount
  • receiverAccount nr
  • transferDescription
  • createdAt

• TABLE 2 - balances

  • account nr (unique)
  • balance
  • createdAt

The transaction table registers any transaction in an account (ie. today I paid N2000 for a movie with my card), the balances table represents the account balance of customers (ie. I have N50k in my bank account). If a sender is trying to make a transaction of an amount of money more than his current balance, an error should be returned indicating insufficient funds

The API you are to develop should be able to handle a transfer request of the form below and updates the transactions/balances table accordingly.

{
    from: account,
    to: account,
    amount: money
}

Endpoints to test

Method	Endpoint	Enable a user to:
POST	/create-account	Enable user to create an account stored in the balance table
GET	/balance/:accountNumber	Getting balance for a particular account number
GET	/balance	Getting all accounts and their balance
POST	/transfer	To make a transaction to another account

Test coverage

• Make sure you write test to cover your application using supertest

Hosting

• Host your application on Heroku