mw

package

v0.2.1 Latest Latest Go to latest Published: Sep 29, 2020 License: MIT Imports: 6 Imported by: 0

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Repository

gitoa.ru/go-4devs/cache

Documentation ¶

Index ¶

func HandleByErr(_ *cache.Item, err error) bool
func LabelName(name string) func(ctx context.Context, item *cache.Item) string
func LabelPreficKey(ctx context.Context, item *cache.Item) string
func WithClearByContext(ctxKey interface{}) cache.Configure
func WithClearByTTL() cache.Configure
func WithFallback(fallback Fallback, isHandleFallback func(*cache.Item, error) bool) cache.Configure
func WithLockGetter(getter Getter, isHandle func(*cache.Item, error) bool) cache.Configure
func WithMetrics(m Metrics, labelCallback func(ctx context.Context, item *cache.Item) string) cache.Configure
type Fallback
- func LockFallback(fallback Fallback) Fallback
type Getter
type Metrics

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

func HandleByErr ¶

func HandleByErr(_ *cache.Item, err error) bool

HandleByErr checks if cache return err.

func LabelName ¶

func LabelName(name string) func(ctx context.Context, item *cache.Item) string

LabelName sets static name.

func LabelPreficKey ¶

func LabelPreficKey(ctx context.Context, item *cache.Item) string

LabelPreficKey gets lebale by item prefix.

func WithClearByContext ¶

func WithClearByContext(ctxKey interface{}) cache.Configure

WithClearByContext clear cache if context done.

func WithClearByTTL ¶

func WithClearByTTL() cache.Configure

WithClearByTTL clear cache by key after ttl.

func WithFallback ¶

func WithFallback(fallback Fallback, isHandleFallback func(*cache.Item, error) bool) cache.Configure

WithFallback sets fallback when cache handle success and set result in cache.

func WithLockGetter ¶ added in v0.2.0

func WithLockGetter(getter Getter, isHandle func(*cache.Item, error) bool) cache.Configure

WithLockGetter sets values from getter when cache handle success and set result in cache.

func WithMetrics ¶

func WithMetrics(m Metrics, labelCallback func(ctx context.Context, item *cache.Item) string) cache.Configure

WithMetrics cache middleware metrics.

Types ¶

type Fallback ¶ added in v0.2.0

type Fallback func(ctx context.Context, key, value interface{}) error

func LockFallback ¶

func LockFallback(fallback Fallback) Fallback

LockFallback locks run fallback by item key.

type Getter ¶ added in v0.2.0

type Getter func(ctx context.Context, key interface{}) (interface{}, error)

type Metrics ¶

type Metrics interface {
	Hit(label string)
	Miss(label string)
	Expired(label string)
	Err(label string, operation string)
	Observe(label string, operation string, start time.Time)
}

Metrics interface for middleware.

Source Files ¶

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Directories ¶

Path	Synopsis
prometheus

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