fromJson static method

ContactProvider? fromJson(dynamic value)

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

Implementation

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

    return ContactProvider(
      id: mapValueOfType<String>(json, r'id')!,
      name: mapValueOfType<String>(json, r'name')!,
      displayName: mapValueOfType<String>(json, r'display_name'),
      description: mapValueOfType<String>(json, r'description'),
      isSystem: mapValueOfType<bool>(json, r'is_system'),
    );
  }
  return null;
}