fromJson static method

CheckoutResponseSchema? fromJson(dynamic value)

Returns a new CheckoutResponseSchema instance and imports its values from value if it's a Map, null otherwise.

Implementation

// ignore: prefer_constructors_over_static_methods
static CheckoutResponseSchema? fromJson(dynamic value) {
  if (value is Map) {
    final json = value.cast<String, dynamic>();

    // Ensure that the map contains the required keys.
    // Note 1: the values aren't checked for validity beyond being non-null.
    // Note 2: this code is stripped in release mode!
    assert(() {
      assert(json.containsKey(r'checkout_url'),
          'Required key "CheckoutResponseSchema[checkout_url]" is missing from JSON.');
      assert(json[r'checkout_url'] != null,
          'Required key "CheckoutResponseSchema[checkout_url]" has a null value in JSON.');
      assert(json.containsKey(r'session_id'),
          'Required key "CheckoutResponseSchema[session_id]" is missing from JSON.');
      assert(json[r'session_id'] != null,
          'Required key "CheckoutResponseSchema[session_id]" has a null value in JSON.');
      return true;
    }());

    return CheckoutResponseSchema(
      checkoutUrl: mapValueOfType<String>(json, r'checkout_url')!,
      sessionId: mapValueOfType<String>(json, r'session_id')!,
    );
  }
  return null;
}