fromJson static method

BillingInfo? fromJson(dynamic value)

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

Implementation

// ignore: prefer_constructors_over_static_methods
static BillingInfo? 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'name'), 'Required key "BillingInfo[name]" is missing from JSON.');
      assert(json[r'name'] != null, 'Required key "BillingInfo[name]" has a null value in JSON.');
      assert(json.containsKey(r'address'), 'Required key "BillingInfo[address]" is missing from JSON.');
      assert(json[r'address'] != null, 'Required key "BillingInfo[address]" has a null value in JSON.');
      assert(json.containsKey(r'city'), 'Required key "BillingInfo[city]" is missing from JSON.');
      assert(json[r'city'] != null, 'Required key "BillingInfo[city]" has a null value in JSON.');
      assert(json.containsKey(r'state'), 'Required key "BillingInfo[state]" is missing from JSON.');
      assert(json[r'state'] != null, 'Required key "BillingInfo[state]" has a null value in JSON.');
      assert(json.containsKey(r'zip'), 'Required key "BillingInfo[zip]" is missing from JSON.');
      assert(json[r'zip'] != null, 'Required key "BillingInfo[zip]" has a null value in JSON.');
      assert(json.containsKey(r'country'), 'Required key "BillingInfo[country]" is missing from JSON.');
      assert(json[r'country'] != null, 'Required key "BillingInfo[country]" has a null value in JSON.');
      return true;
    }());

    return BillingInfo(
      name: mapValueOfType<String>(json, r'name')!,
      address: mapValueOfType<String>(json, r'address')!,
      city: mapValueOfType<String>(json, r'city')!,
      state: mapValueOfType<String>(json, r'state')!,
      zip: mapValueOfType<String>(json, r'zip')!,
      country: mapValueOfType<String>(json, r'country')!,
      currency: mapValueOfType<String>(json, r'currency'),
      email: mapValueOfType<String>(json, r'email'),
    );
  }
  return null;
}