/// <summary> /// 下载临时素材 /// </summary> /// <param name="media_id">媒体文件ID</param> /// <param name="config"></param> /// <returns></returns> public static async Task <Stream> Get(string media_id, ApiConfig config = null) { using (var s = await ApiHelper.GetStream($"https://api.weixin.qq.com/cgi-bin/media/get?$acac$&media_id={Uri.EscapeDataString(media_id)}", config).ConfigureAwait(false)) { var ms = new MemoryStream(); await s.CopyToAsync(ms).ConfigureAwait(false); //估计错误消息应该不会大于400字节 if (ms.Length < 400) { var buffer = ms.ToArray(); var text = Encoding.UTF8.GetString(buffer); //如果是失败消息, 这里会抛出异常 ApiHelper.BuildVoid(text, config); } ms.Position = 0; return(ms); } }
/// <summary> /// 下载临时素材 /// </summary> /// <param name="media_id">媒体文件ID</param> /// <param name="config"></param> /// <returns></returns> public static Task <Stream> Get(string media_id, ApiConfig config = null) { return(ApiHelper.GetStream($"https://api.weixin.qq.com/cgi-bin/media/get?$acac$&media_id={Uri.EscapeDataString(media_id)}", config)); }