fromJson static method

ParticipantSessionDetails? fromJson(dynamic value)

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

Implementation

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

    return ParticipantSessionDetails(
      durationInSeconds: mapValueOfType<int>(json, r'duration_in_seconds'),
      joinedAt: mapDateTime(json, r'joined_at', r''),
      leftAt: mapDateTime(json, r'left_at', r''),
      publisherType: mapValueOfType<String>(json, r'publisher_type')!,
      roles: json[r'roles'] is Iterable
          ? (json[r'roles'] as Iterable)
              .cast<String>()
              .toList(growable: false)
          : const [],
      userId: mapValueOfType<String>(json, r'user_id')!,
      userSessionId: mapValueOfType<String>(json, r'user_session_id')!,
    );
  }
  return null;
}