/// <summary>
/// 调用接口
/// </summary>
/// <param name="outcoming">请求参数</param>
/// <param name="stream">正常情况下返回的数据流, 内容是 CSV 格式的数据</param>
/// <param name="incoming">出错时的返回结果</param>
/// <returns>正常情况: true, 出错时: false</returns>
public async Task <bool> Invoke(Outcoming outcoming, AsyncOutParameter <Stream> stream, AsyncOutParameter <Incoming> incoming)
{
var url = Stage.GetApiRootUrl(_sandbox) + "pay/downloadbill";
var response = await _requester.GetResponse(url, false, outcoming).ConfigureAwait(false);
var netStream = await response.Content.ReadAsStreamAsync().ConfigureAwait(false);
var peekStream = new PeekableStream(netStream, 1);
var buffer = new byte[1];
await peekStream.PeekAsync(buffer, 0, 1).ConfigureAwait(false);
if (buffer[0] != '<')
{
stream.SetValue(peekStream);
return(true);
}
using (var reader = new StreamReader(peekStream, Encoding.UTF8))
{
var responseBody = await reader.ReadToEndAsync().ConfigureAwait(false);
incoming.SetValue(_requester.ParseResponse <Incoming, ErrorCode>(responseBody, _checkSignature));
return(false);
}
}
private static async Task <string> FormatUrl(string url, ApiConfig config, AsyncOutParameter <string> token)
{
if (url.IndexOf("$acac$", StringComparison.InvariantCulture) < 0)
{
return(url);
}
var m = config?.AccessTokenManager ?? _defaultConfig.AccessTokenManager;
var accessToken = await m.GetToken().ConfigureAwait(false);
var escapedToken = Uri.EscapeDataString(accessToken);
token.SetValue(accessToken);
return(url.Replace("$acac$", "access_token=" + escapedToken));
}
