pushgateway

type Config struct {
	SealingKeys      []SealingKey     // [0] seals new handles; every entry opens them
	Android          *Platform        // FCM; nil: android registrations answer 400
	IOS              *Platform        // APNs; nil: ios registrations answer 400. The gateway sets setting "sandbox" per send from the handle's apns_env
	ServerPerSecond  float64          // per server key; 0 means 50; burst = ceil(rate), at least 1
	HandlePerMinute  float64          // per device (platform and token); 0 means 30; burst = ceil(rate), at least 1
	Logger           *slog.Logger     // nil means slog.Default()
	Now              func() time.Time // nil means time.Now; addition for tests
	PlaceholderTitle string           // iOS alert shown until the extension decrypts; "" means "Notification"
	PlaceholderBody  string           // "" means "New notification"
}

type Platform struct {
	Driver      driver.Driver
	Credentials map[string]string
	Settings    map[string]string
}

type SealingKey struct {
	ID  string // appears in handles as h1.<ID>.<...>; 1 to 32 chars of [A-Za-z0-9_-]
	Key []byte // 32 bytes, AES-256-GCM
}