Net core application. I am trying to upload file to data lake through API. I have below controller method which accepts file.
[HttpPost]
public async Task<IActionResult> Upload(IFormFile files)
{
var path = Path.Combine(Directory.GetCurrentDirectory(), "Uploads", files.FileName);
var stream = new FileStream(path, FileMode.Create);
string containerName = "raw";
DataLakeServiceClient dataLakeServiceClient = _dataLakeRepository.GetDataLakeServiceClient("test");
DataLakeFileSystemClient dataLakeFileSystemClient = _dataLakeRepository.GetFileSystem(dataLakeServiceClient, containerName);
await _dataLakeRepository.UploadFile(dataLakeFileSystemClient, "directory2", "text1.txt", stream);
return Ok();
}
I have below DataLake method which will upload file to data lake.
public async Task UploadFile(DataLakeFileSystemClient fileSystemClient, string directoryName, string fileName, Stream content)
{
DataLakeDirectoryClient directoryClient = fileSystemClient.GetDirectoryClient(directoryName);
DataLakeFileClient fileClient = await directoryClient.CreateFileAsync(fileName);
long fileSize = content.Length;
await fileClient.AppendAsync(content, offset: 0);
await fileClient.FlushAsync(position: fileSize);
}
Below method to get file system client
public DataLakeFileSystemClient GetFileSystem(DataLakeServiceClient serviceClient, string FileSystemName)
{
return serviceClient.GetFileSystemClient(FileSystemName);
}
I tried to upload file and In below line
await fileClient.AppendAsync(content, offset: 0);
I got below error
Azure.RequestFailedException: The value for one of the HTTP headers is not in the correct format.
Status: 400 (The value for one of the HTTP headers is not in the correct format.)
ErrorCode: InvalidHeaderValue
Also when I debug I see content.Length is also zero. I think I am missing something in stream because I am having some issue with stream. I am not able to figure out the issue. Can someone help me to fix this. Any help would be appreciated. Thanks
