googleSubscription static method

VerificationResult googleSubscription(Map<String, dynamic> json, { required DateTime now, })

Parses purchases.subscriptionsv2.get.

Valid when the state grants access (active, canceled or grace period) and the latest line item has not expired yet. A canceled subscription keeps access until expiryTime; a pending one does not.

Implementation

static VerificationResult googleSubscription(
  Map<String, dynamic> json, {
  required DateTime now,
}) {
  final state =
      _googleSubscriptionStates[json['subscriptionState']] ??
      VerificationState.unknown;

  final lineItems = (json['lineItems'] as List<dynamic>? ?? [])
      .cast<Map<String, dynamic>>();
  Map<String, dynamic>? latest;
  DateTime? expiresAt;
  for (final item in lineItems) {
    final expiry = DateTime.tryParse(item['expiryTime'] as String? ?? '');
    if (latest == null ||
        (expiry != null &&
            (expiresAt == null || expiry.isAfter(expiresAt)))) {
      latest = item;
      expiresAt = expiry;
    }
  }

  final grantsAccess =
      state == VerificationState.active ||
      state == VerificationState.canceled ||
      state == VerificationState.gracePeriod;
  final notExpired = expiresAt == null
      ? state != VerificationState.canceled
      : expiresAt.isAfter(now);

  final autoRenewingPlan = latest?['autoRenewingPlan'] as Map?;
  final bool? willAutoRenew = autoRenewingPlan != null
      ? autoRenewingPlan['autoRenewEnabled'] as bool? ?? false
      : (latest?['prepaidPlan'] != null ? false : null);

  return VerificationResult(
    isValid: grantsAccess && notExpired,
    state: state,
    platform: StorePlatform.google,
    productId: latest?['productId'] as String?,
    expiresAt: expiresAt,
    willAutoRenew: willAutoRenew,
    isSandbox: json.containsKey('testPurchase'),
    raw: json,
  );
}