listDerivatives method

Future<CoinGeckoResult<List<Derivative>>> listDerivatives({ String includeTickers = DerivativeTickersFilter.unexpired, })

List all derivative tickers.

includeTickers filters tickers by expiration. Use DerivativeTickersFilter enumeration as values. Default is DerivativeTickersFilter.unexpired.

Query: /derivatives

Implementation

Future<CoinGeckoResult<List<Derivative>>> listDerivatives({
  String includeTickers = DerivativeTickersFilter.unexpired,
}) async {
  final response = await _dio.get(
    '/derivatives',
    queryParameters: {
      'include_tickers': includeTickers,
    },
  );
  if (response.statusCode == 200) {
    final data = Convert.toList(response.data, []);
    final list = data.map((e) => Derivative.fromJson(e)).toList();
    return CoinGeckoResult(list);
  } else {
    return CoinGeckoResult(
      [],
      errorCode: response.statusCode ?? null,
      errorMessage: '${response.statusMessage} - ${response.data.toString()}',
      isError: true,
    );
  }
}