package mw

import "gitoa.ru/go-4devs/cache/mw"

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

Package Files ¶

fallback.go gc.go metrics.go

func HandleByErr ¶ Uses

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

HandleByErr checks if cache return err.

func LabelName ¶ Uses

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

LabelName sets static name.

func LabelPreficKey ¶ Uses

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

LabelPreficKey gets lebale by item prefix.

func WithClearByContext ¶ Uses

func WithClearByContext(ctxKey interface{}) cache.Configure

WithClearByContext clear cache if context done.

func WithClearByTTL ¶ Uses

func WithClearByTTL() cache.Configure

WithClearByTTL clear cache by key after ttl.

func WithFallback ¶ Uses

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 ¶ Uses

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 ¶ Uses

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

WithMetrics cache middleware metrics.

type Fallback ¶ Uses

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

func LockFallback ¶ Uses

func LockFallback(fallback Fallback) Fallback

LockFallback locks run fallback by item key.

type Getter ¶ Uses

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

type Metrics ¶ Uses

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.

Directories ¶