DataLakeFileSystemClient.ExistsAsync(CancellationToken) Method

Definition

Namespace:

Azure.Storage.Files.DataLake

Assembly:

Azure.Storage.Files.DataLake.dll

Package:

Azure.Storage.Files.DataLake v12.20.1

Source:

DataLakeFileSystemClient.cs

The ExistsAsync(CancellationToken) operation can be called on a DataLakeFileSystemClient to see if the associated file system exists on the storage account in the storage service.

public virtual System.Threading.Tasks.Task<Azure.Response<bool>> ExistsAsync (System.Threading.CancellationToken cancellationToken = default);

abstract member ExistsAsync : System.Threading.CancellationToken -> System.Threading.Tasks.Task<Azure.Response<bool>>
override this.ExistsAsync : System.Threading.CancellationToken -> System.Threading.Tasks.Task<Azure.Response<bool>>

Public Overridable Function ExistsAsync (Optional cancellationToken As CancellationToken = Nothing) As Task(Of Response(Of Boolean))

Parameters

cancellationToken

CancellationToken

Optional CancellationToken to propagate notifications that the operation should be cancelled.

Returns

Task<Response<Boolean>>

Returns true if the file system exists.

Remarks

A RequestFailedException will be thrown if a failure occurs. If you want to create the file system if it doesn't exist, use CreateIfNotExistsAsync(DataLakeFileSystemCreateOptions, CancellationToken) instead.