fromJson static method

AggregationRequest? fromJson(dynamic value)

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

Implementation

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

    return AggregationRequest(
      query: QueryPredicate.listFromJson(json[r'query']),
      resourceName: mapValueOfType<String>(json, r'resourceName')!,
      groupBy: json[r'groupBy'] is Iterable
          ? (json[r'groupBy'] as Iterable).cast<String>().toList(growable: false)
          : const [],
      operations: AggregationOperation.listFromJson(json[r'operations']),
      sort: AggregationRequestSort.fromJson(json[r'sort']),
    );
  }
  return null;
}