featureflags

May 20, 2026

Changes in this version

+ var ErrFlagAlreadyRegistered = errors.New("feature flag already registered")

+ var ErrFlagEnterpriseOnly = errors.New("feature flag is enterprise-only")

+ var ErrFlagIDInvalid = errors.New("feature flag id is invalid")

+ var ErrFlagLocked = errors.New("feature flag is locked by config.json")

+ var ErrFlagNotFound = errors.New("feature flag not found")

+ var ErrFlagUnregistered = errors.New("feature flag has no code registration")

+ func MustRegister(def FlagDef)

+ func Register(def FlagDef) error

+ type Config struct

+ IsEnterprise bool

+ type EntrySnapshot struct

+ type FlagDef struct

+ Default bool

+ Description string

+ DisplayName string

+ EnterpriseOnly bool

+ ID string

+ func LookupDef(id string) (FlagDef, bool)

+ func RegisteredDefs() []FlagDef

+ type FlagStatus struct

+ Default bool

+ Description string

+ DisplayName string

+ Enabled bool

+ EnterpriseOnly bool

+ ID string

+ Locked bool

+ Registered bool

+ Source Source

+ UpdatedAt int64

+ type HydrationRow struct

+ Enabled bool

+ ID string

+ UpdatedAt int64

+ type Source string

+ const SourceDB

+ const SourceDefault

+ const SourceFile

+ const SourceRemote

+ type Store struct

+ func New(cfg Config) (*Store, error)

+ func (s *Store) ApplyFile(id string, enabled bool)

+ func (s *Store) ApplyRemote(id string, enabled bool, writtenAt int64)

+ func (s *Store) Hydrate(rows []HydrationRow)

+ func (s *Store) IsEnabled(id string) bool

+ func (s *Store) List() []FlagStatus

+ func (s *Store) Restore(id string, snap EntrySnapshot, hadEntry bool)

+ func (s *Store) Set(_ context.Context, id string, enabled bool) (FlagStatus, error)

+ func (s *Store) SetDelegate(d SyncDelegate)

+ func (s *Store) Snapshot(id string) (EntrySnapshot, bool)

+ func (s *Store) Status(id string) (FlagStatus, error)

+ type SyncDelegate interface

+ OnSet func(id string, enabled bool, writtenAt int64)