fromJson static method

StaticDataPageDropRateSchema? fromJson(dynamic value)

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

Implementation

// ignore: prefer_constructors_over_static_methods
static StaticDataPageDropRateSchema? 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'data'),
          'Required key "StaticDataPageDropRateSchema[data]" is missing from JSON.');
      assert(json[r'data'] != null,
          'Required key "StaticDataPageDropRateSchema[data]" has a null value in JSON.');
      assert(json.containsKey(r'total'),
          'Required key "StaticDataPageDropRateSchema[total]" is missing from JSON.');
      assert(json[r'total'] != null,
          'Required key "StaticDataPageDropRateSchema[total]" has a null value in JSON.');
      assert(json.containsKey(r'page'),
          'Required key "StaticDataPageDropRateSchema[page]" is missing from JSON.');
      assert(json[r'page'] != null,
          'Required key "StaticDataPageDropRateSchema[page]" has a null value in JSON.');
      assert(json.containsKey(r'size'),
          'Required key "StaticDataPageDropRateSchema[size]" is missing from JSON.');
      assert(json[r'size'] != null,
          'Required key "StaticDataPageDropRateSchema[size]" has a null value in JSON.');
      assert(json.containsKey(r'pages'),
          'Required key "StaticDataPageDropRateSchema[pages]" is missing from JSON.');
      assert(json[r'pages'] != null,
          'Required key "StaticDataPageDropRateSchema[pages]" has a null value in JSON.');
      return true;
    }());

    return StaticDataPageDropRateSchema(
      data: DropRateSchema.listFromJson(json[r'data']),
      total: mapValueOfType<int>(json, r'total')!,
      page: mapValueOfType<int>(json, r'page')!,
      size: mapValueOfType<int>(json, r'size')!,
      pages: mapValueOfType<int>(json, r'pages')!,
    );
  }
  return null;
}