bank

Documentation

Index

• Variables
• type Bitcoin
  • func (b Bitcoin) String() string
• type Wallet
  • func (w *Wallet) Balance() Bitcoin
  • func (w *Wallet) Deposit(amount Bitcoin)
  • func (w *Wallet) Withdraw(amount Bitcoin) error

Variables

var ErrInsufficientFunds = errors.New("cannot withdraw, insufficient funds")

ErrInsufficientFunds means wallet doesnot have enough funds

Types

type Bitcoin

type Bitcoin int

Bitcoin represents the number of bit coins

func (Bitcoin) String

func (b Bitcoin) String() string

type Wallet

type Wallet struct {
	// contains filtered or unexported fields
}

Wallet stroers the number of bitcoins someone owns

func (*Wallet) Balance

func (w *Wallet) Balance() Bitcoin

Balance returns current balance

func (*Wallet) Deposit

func (w *Wallet) Deposit(amount Bitcoin)

Deposit will add some bitcoin to current balance

func (*Wallet) Withdraw

func (w *Wallet) Withdraw(amount Bitcoin) error

Withdraw will withdraw some bitcoin to current balance