AppendBlobClient.CreateIfNotExistsAsync Method
Definition
Important
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The CreateIfNotExistsAsync(AppendBlobCreateOptions, CancellationToken) operation creates a new 0-length append blob. If the append blob already exists, the content of the existing append blob will remain unchanged. To add content to the append blob, call the Azure.Storage.Blobs.Specialized.AppendBlobClient.AppendBlockAsync(System.IO.Stream,System.Byte[],Azure.Storage.Blobs.Models.AppendBlobRequestConditions,System.IProgress{System.Int64},System.Threading.CancellationToken) operation.
For more information, see Put Blob.
public virtual System.Threading.Tasks.Task<Azure.Response<Azure.Storage.Blobs.Models.BlobContentInfo>> CreateIfNotExistsAsync (Azure.Storage.Blobs.Models.AppendBlobCreateOptions options, System.Threading.CancellationToken cancellationToken = default);abstract member CreateIfNotExistsAsync : Azure.Storage.Blobs.Models.AppendBlobCreateOptions * System.Threading.CancellationToken -> System.Threading.Tasks.Task<Azure.Response<Azure.Storage.Blobs.Models.BlobContentInfo>>
override this.CreateIfNotExistsAsync : Azure.Storage.Blobs.Models.AppendBlobCreateOptions * System.Threading.CancellationToken -> System.Threading.Tasks.Task<Azure.Response<Azure.Storage.Blobs.Models.BlobContentInfo>>Public Overridable Function CreateIfNotExistsAsync (options As AppendBlobCreateOptions, Optional cancellationToken As CancellationToken = Nothing) As Task(Of Response(Of BlobContentInfo))Parameters
- options
- AppendBlobCreateOptions
Optional parameters.
- cancellationToken
- CancellationToken
Optional CancellationToken to propagate notifications that the operation should be cancelled.
Returns
If the append blob does not already exist, a Response<T>
describing the newly created append blob. Otherwise, null.
Remarks
A RequestFailedException will be thrown if a failure occurs.
