backend

Documentation

Index

• Variables
• type Backend
  • func Func(name string, fn func(context.Context, string) ([]byte, error)) Backend
• type ValueUnmarshaler

Variables

var (
	// ErrNotFound is returned by the backends given key is not found.
	ErrNotFound = errors.New("key not found")
)

Types

type Backend

type Backend interface {
	Get(ctx context.Context, key string) ([]byte, error)
	Name() string
}

A Backend is used to fetch values from a given key.

func Func

func Func(name string, fn func(context.Context, string) ([]byte, error)) Backend

Func creates a Backend from a function.

type ValueUnmarshaler

type ValueUnmarshaler interface {
	UnmarshalValue(ctx context.Context, key string, to interface{}) error
}

A ValueUnmarshaler decodes a value identified by a key into a target.