requestJson function

Future<Map<String, dynamic>> requestJson({ required String provider, required Future<ResponseAcc> send(), })

HTTP リクエストを実行し、JSON マップを取り出す。

通信失敗は LLMNetworkException、非 2xx は LLMException.fromHttp、 JSON マップ以外のボディは LLMUnknownException に正規化する。

Implementation

Future<Map<String, dynamic>> requestJson({
  required String provider,
  required Future<ResponseAcc> Function() send,
}) async {
  ResponseAcc response;
  try {
    response = await send();
  } catch (e) {
    throw LLMNetworkException(
      'Network request failed',
      provider: provider,
      raw: e,
    );
  }
  final statusCode = int.tryParse(response.statusCode) ?? 0;
  final body = response.body;
  final mapData = body is MapJsonResponseBody ? body.data : null;
  if (statusCode < 200 || statusCode >= 300) {
    throw LLMException.fromHttp(
      statusCode,
      provider: provider,
      body: mapData ?? body,
    );
  }
  if (mapData != null) return mapData;
  throw LLMUnknownException(
    'Unexpected response body from $provider',
    provider: provider,
    raw: body,
  );
}