我正在嘗試從 cloudinary 下載音頻。我在uploadParams 中添加轉換后，它開始拋出錯誤。但它適用于影像。收到以下錯誤：
{
"innerException": "at System.Threading.Tasks.Task.ThrowIfExceptional(Boolean includeTaskCanceledExceptions)\r\n
at System.Threading.Tasks.Task`1.GetResultCore(Boolean waitCompletionNotification)\r\n at System.Threading.Tasks.Task`1.get_Result()\r\n
at gspark.API.Controllers.TracksController.UpdateTrack(DtoUpdateTrack dtoUpdateTrack, Int32 id, IFormFile file) in C:\\Users\\GSpark\\source\\repos\\gspark\\gspark\\Controllers\\TracksController.cs:line 69\r\n
at Microsoft.AspNetCore.Mvc.Infrastructure.ActionMethodExecutor.TaskOfIActionResultExecutor.Execute(IActionResultTypeMapper mapper, ObjectMethodExecutor executor, Object controller, Object[] arguments)\r\n
at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.<InvokeActionMethodAsync>g__Awaited|12_0(ControllerActionInvoker invoker, ValueTask`1 actionResultValueTask)\r\n
at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.<InvokeNextActionFilterAsync>g__Awaited|10_0(ControllerActionInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)\r\n
at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Rethrow(ActionExecutedContextSealed context)\r\n
at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)\r\n
at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.<InvokeInnerFilterAsync>g__Awaited|13_0(ControllerActionInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)\r\n
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeNextResourceFilter>g__Awaited|25_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)\r\n
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Rethrow(ResourceExecutedContextSealed context)\r\n at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)\r\n
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeFilterPipelineAsync>g__Awaited|20_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)\r\n
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeAsync>g__Awaited|17_0(ResourceInvoker invoker, Task task, IDisposable scope)\r\n at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeAsync>g__Awaited|17_0(ResourceInvoker invoker, Task task, IDisposable scope)\r\n at Microsoft.AspNetCore.Routing.EndpointMiddleware.<Invoke>g__AwaitRequestTask|6_0(Endpoint endpoint, Task requestTask, ILogger logger)\r\n
at Swashbuckle.AspNetCore.SwaggerUI.SwaggerUIMiddleware.Invoke(HttpContext httpContext)\r\n at Swashbuckle.AspNetCore.Swagger.SwaggerMiddleware.Invoke(HttpContext httpContext, ISwaggerProvider swaggerProvider)\r\n
at Microsoft.AspNetCore.Authorization.AuthorizationMiddleware.Invoke(HttpContext context)\r\n
at Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context)\r\n at Microsoft.AspNetCore.Diagnostics.StatusCodePagesMiddleware.Invoke(HttpContext context)\r\n at gspark.Middleware.ExceptionMiddleware.InvokeAsync(HttpContext context) in C:\\Users\\GSpark\\source\\repos\\gspark\\gspark\\Middleware\\ExceptionMiddleware.cs:line 24",
"statusCode": 500,
"message": "One or more errors occurred. (An error has occured while uploading file (status code: InternalServerError). General Error)"
}
ERROR|gspark.Middleware.ExceptionMiddleware|One or more errors occurred. (An error has occured while uploading file (status code: InternalServerError). General Error) System.Exception: An error has occured while uploading file (status code: InternalServerError). General Error
at CloudinaryDotNet.Cloudinary.CheckUploadResult[T](T result)
at CloudinaryDotNet.Cloudinary.UploadLargeAsync[T](BasicRawUploadParams parameters, Int32 bufferSize, Nullable`1 cancellationToken)
at gspark.Service.Implementation.FileService.AddFileAsync(IFormFile file) in C:\Users\GSpark\source\repos\gspark\gspark.Service\Implementation\FileService.cs:line 55|url: http://localhost/api/tracks/edit/12|action: UpdateTrack|gspark.Middleware.ExceptionMiddleware.InvokeAsync| body:
檔案服務實作：
public async Task<VideoUploadResult> AddFileAsync(IFormFile file)
{
var uploadResult = new VideoUploadResult();
if (file.Length > 0)
{
using var stream = file.OpenReadStream();
var uploadParams = new VideoUploadParams()
{
File = new FileDescription(file.Name, stream),
Transformation = new Transformation().Flags($"attachment:{file.Name}")
};
ERROR -> uploadResult = await _cloudinary.UploadLargeAsync(uploadParams);
}
return uploadResult;
}
我的控制器：
[HttpPut("edit/{id}")]
public async Task<IActionResult> UpdateTrack([ModelBinder(BinderType = typeof(JsonModelBinder))] DtoUpdateTrack dtoUpdateTrack,
int id, IFormFile file)
{
var user = await _unitOfWork.UserRepository.GetUserByName(User.FindFirstValue(ClaimTypes.GivenName));
var track = await _unitOfWork.Repository<Track>().GetByIdAsync(id);
var result = _fileService.AddFileAsync(file);
ERROR ->if (result.Result.Error != null)
{
_logger.LogError(result.Result.Error.Message);
return BadRequest(result.Result.Error.Message);
}
var resultFile = new File()
{
Url = result.Result.Url.AbsoluteUri,
PublicId = result.Result.PublicId,
UserId = user.Id
};
...
如果我將 file.Name 更改為實際檔案名，我會收到此錯誤：
One or more errors occurred. (An error has occured while uploading file (status code: BadRequest). Transformation Invalid flag in transformation: mp3)"
uj5u.com熱心網友回復：
fl_attachement將需要下載檔案的名稱，而不需要此處描述的擴展名。資產必須上傳到您的媒體庫帳戶：
var uploadParams = new VideoUploadParams()
{
File = new FileDescription(file.Name, stream)
};
然后，使用 public_id，您可以構建交付 URL。例如：
var deliveryUrl = cloudinary.Api.UrlVideoUp.Transform(new Transformation().Flags($"attachment:audio").FetchFormat("mp3")).BuildUrl("audio.mp3");
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