bank_mvp

A Sample Banking application in Elixir

Register User

To register a user account, the following function needs to be called with email, password and the deposit amount. you will be getting an unique id which is your user id. you need to have this user id to do all other operations

iex(1)> BankMvp.Bank.register_user("bankmvp53@gmail.com", "password", 500)
{:ok, "4923263703768902"}

iex(2)> BankMvp.Bank.register_user("bsyed6@gmail.com", "password", 450)
{:error, :minimum_deposit_amount_is_500}

To Deposit money into your account

To deposit money into your account, the following function needs to be called with user id, password and amount needs to be deposited.

you will get your user id and new balance in your account as a response

iex(3)> BankMvp.Bank.credit("4923263703768902", "password", 1250)
{"4923263703768902", 1750}

iex(4)> BankMvp.Bank.credit("4923263703768902", "password", 50)
{:error, :minimum_credit_amount_is_100}

To withdraw money from your account

To withdraw money from your account, the following function needs to be called with user id, password and amount needs to be withdraw.

you will get your user id and new balance in your account as a response. you will be charged 5% of minimum balance for every debit

iex(4)> BankMvp.Bank.debit("4923263703768902", "password", 500)
{"4923263703768902", 1225}

iex(5)> BankMvp.Bank.debit("4923263703768902", "password", 1500)
{:error, :amount_greater_than_balance}

To email the transaction

To email the transaction history, the following function needs to be called with user id. Swoosh library is added as deps, in order to send email to the user

iex(6)> BankMvp.Bank.email_transaction("4923263703768902")
{:ok, %{id: xxxxxxxxx}}

To transfer money to another user account

To transfer money to another user account, the following function needs to be called with user id, password, amount and the receipient user id

iex(7)> BankMvp.Bank.register_user("dummy@gmail.com", "password", 500)   
{:ok, "4276563703768910"}

iex(8)> BankMvp.Bank.transfer_money("4923263703768902", "password", 225, "4276563703768910")
{"4276563703768910", 725.0}
{"4923263703768902", 975.0}

iex(9)> BankMvp.Bank.transfer_money("4923263703768902", "password", 350, "4923263703768902") 
{:errror, :cant_transfer_to_same_account}

iex(10)> BankMvp.Bank.transfer_money("4923263703768902", "password", 150, "4276563703768910")
{:error, :minimum_transfer_amount_is_200}

To close the account

To close the account, the following function needs to be called with user id and password

iex(11)> BankMvp.Bank.close_account("4923263703768902", "password")
{:ok, :account_closed}

Note

For every hour, you will get the transaction history in your email. If you have not maintained your minimum balance, then for every hour 10% of minimum balance will be charged from your account.