race

Documentation

Index

• Variables
• func Spend(tx Transactioner, userID int, amount int) error
• type PsqlUserStore
  • func (pus *PsqlUserStore) Create(user *User) error
  • func (pus *PsqlUserStore) Delete(id int) error
  • func (pus *PsqlUserStore) Find(id int) (*User, error)
  • func (pus *PsqlUserStore) Tx(fn func(us UserStore) error) error
  • func (pus *PsqlUserStore) Update(user *User) error
• type Transactioner
• type User
• type UserStore

Variables

var (
	ErrNotFound = errors.New("race: resource could not be located")
)

Common errors that you will likely want to account for in your code. Any other errors are wrapped with context vai the github.com/pkg/errors package and returned but are harder to use an if/switch to match.

Functions

func Spend

func Spend(tx Transactioner, userID int, amount int) error

Types

type PsqlUserStore

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

PsqlUserStore is used to interact with our user store.

func (*PsqlUserStore) Create

func (pus *PsqlUserStore) Create(user *User) error

Create will create a new user in the DB using the provided user and will update the ID of the provided user. If there is an error it will be wrapped and returned.

func (*PsqlUserStore) Delete

func (pus *PsqlUserStore) Delete(id int) error

Delete will delete a user form the DB. If there is an error it will be wrapped and returned.

func (*PsqlUserStore) Find

func (pus *PsqlUserStore) Find(id int) (*User, error)

Find will retrieve a user with the provided ID or return ErrNotFount if the user isn't located. Other errors are wrapped with context but are otherwise wrapped as-is.

func (*PsqlUserStore) Tx

func (pus *PsqlUserStore) Tx(fn func(us UserStore) error) error

func (*PsqlUserStore) Update

func (pus *PsqlUserStore) Update(user *User) error

Update will update a user in the DB with the provided info.

type Transactioner

type Transactioner interface {
	Tx(func(UserStore) error) error
}

type User

type User struct {
	ID      int
	Name    string
	Email   string
	Balance int
}

User is an example user model. This typically wouldn't be defined in this package but is done here for simplicity.

type UserStore

type UserStore interface {
	Tx(func(UserStore) error) error
	Find(id int) (*User, error)
	Create(user *User) error
	Update(user *User) error
	Delete(id int) error
}