cache

package

v0.2.0 Latest Latest Go to latest Published: Jun 11, 2026 License: BSD-3-Clause Imports: 3 Imported by: 0

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const DefaultTTL = 24 * time.Hour

DefaultTTL is the default time-to-live for cached flags. Matches the JS SDK's DEFAULT_CACHE_TTL (24 * 60 * 60 * 1000 ms).

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

MemoryCache is a simple in-memory CacheAdapter with TTL. Safe for concurrent use.

func NewMemoryCache(ttl time.Duration) *MemoryCache

NewMemoryCache returns a new MemoryCache with the given TTL. Use DefaultTTL for the standard 24-hour TTL. A TTL of zero disables flag expiry.

func (m *MemoryCache) LoadContext(apiKey string) (*flagmint.EvaluationContext, error)

LoadContext returns the cached evaluation context for apiKey, or nil if none exists.

func (m *MemoryCache) LoadFlags(apiKey string) (*flagmint.FeatureFlags, error)

LoadFlags returns the cached flags for apiKey, or nil if the entry is absent or has expired.

func (m *MemoryCache) SaveContext(apiKey string, ctx *flagmint.EvaluationContext) error

SaveContext persists the evaluation context for apiKey.

func (m *MemoryCache) SaveFlags(apiKey string, flags flagmint.FeatureFlags) error

SaveFlags stores flags for apiKey, resetting the TTL timer.

type NopCache struct{}

NopCache is a no-op CacheAdapter that discards all writes and returns nil on all reads. Use it when caching is disabled.

func (NopCache) LoadContext(_ string) (*flagmint.EvaluationContext, error)

LoadContext always returns nil, nil (cache miss).

func (NopCache) LoadFlags(_ string) (*flagmint.FeatureFlags, error)

LoadFlags always returns nil, nil (cache miss).

func (NopCache) SaveContext(_ string, _ *flagmint.EvaluationContext) error

SaveContext discards the context without storing it.

func (NopCache) SaveFlags(_ string, _ flagmint.FeatureFlags) error

SaveFlags discards the flags without storing them.