DataLakePathClient.ExistsAsync(CancellationToken) Method
Definition
Important
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The ExistsAsync(CancellationToken) operation can be called on a DataLakePathClient to see if the associated file or directory exists in the file system.
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
Returns true if the file or directory 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(PathResourceType, DataLakePathCreateOptions, CancellationToken) instead.
