puppy

Documentation

Index

• Constants
• type Error
  • func (e *Error) Error() string
• type Puppy
• type Storer

Constants

const (
	ErrNegativePuppyID = 400
	ErrPuppyNotFound   = 404
)

Error codes

Types

type Error

type Error struct {
	Message string
	Code    int
}

Error (our custom error type) wraps errors with code, message and error itself - what does this even mean??

func (*Error) Error

func (e *Error) Error() string

Error() method lets us satisfy error interface for our custom error type

type Puppy

type Puppy struct {
	ID     int
	Breed  string
	Colour string
	Value  float64
}

Puppy data structure stores puppy properties

type Storer

type Storer interface {
	CreatePuppy(puppy *Puppy) (int, error) // takes a pointer which makes sense since you are modifying that object
	ReadPuppy(id int) (*Puppy, error)
	UpdatePuppy(id int, puppy *Puppy) error
	DeletePuppy(id int) error
}

Storer defines standard CRUD operations for Pets