fromJson static method

ReferenceSet? fromJson(dynamic value)

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

Implementation

// ignore: prefer_constructors_over_static_methods
static ReferenceSet? 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(() {
      requiredKeys.forEach((key) {
        assert(json.containsKey(key), 'Required key "ReferenceSet[$key]" is missing from JSON.');
        assert(json[key] != null, 'Required key "ReferenceSet[$key]" has a null value in JSON.');
      });
      return true;
    }());

    return ReferenceSet(
      age: mapValueOfType<String>(json, r'age'),
      asOf: mapValueOfType<String>(json, r'asOf'),
      keys: mapValueOfType<int>(json, r'keys'),
      kind: mapValueOfType<String>(json, r'kind'),
      match: mapValueOfType<String>(json, r'match'),
      maxAge: mapValueOfType<String>(json, r'maxAge'),
      overrides: mapValueOfType<int>(json, r'overrides'),
      refusal: mapValueOfType<String>(json, r'refusal'),
      set_: mapValueOfType<String>(json, r'set'),
      sources: ReferenceSource.listFromJson(json[r'sources']),
      stale: mapValueOfType<bool>(json, r'stale'),
      version: mapValueOfType<String>(json, r'version'),
      what: mapValueOfType<String>(json, r'what'),
    );
  }
  return null;
}