CloudAppendBlob.AppendBlockAsync Method
Definition
Important
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Overloads
AppendBlockAsync(Stream, String)
Initiates an asynchronous operation to commit a new block of data to the end of the blob.
[Microsoft.Azure.Storage.DoesServiceRequest]
public virtual System.Threading.Tasks.Task<long> AppendBlockAsync (System.IO.Stream blockData, string contentMD5 = default);[<Microsoft.Azure.Storage.DoesServiceRequest>]
abstract member AppendBlockAsync : System.IO.Stream * string -> System.Threading.Tasks.Task<int64>
override this.AppendBlockAsync : System.IO.Stream * string -> System.Threading.Tasks.Task<int64>Public Overridable Function AppendBlockAsync (blockData As Stream, Optional contentMD5 As String = Nothing) As Task(Of Long)Parameters
- contentMD5
- String
An optional hash value used to ensure transactional integrity. May be null or an empty string.
Returns
A Task object that represents the asynchronous operation.
- Attributes
Remarks
Clients may send the Content-MD5 header for a given Append Block operation as a means to ensure transactional integrity over the wire. The contentMD5 parameter permits clients who already have access to a pre-computed MD5 value for a given byte range to provide it. If the BlobRequestOptions.UseTransactionalMd5 property is set to true and the contentMD5 parameter is set to null, then the client library will calculate the MD5 value internally.
Applies to
AppendBlockAsync(Stream, String, CancellationToken)
Initiates an asynchronous operation to commit a new block of data to the end of the blob.
[Microsoft.Azure.Storage.DoesServiceRequest]
public virtual System.Threading.Tasks.Task<long> AppendBlockAsync (System.IO.Stream blockData, string contentMD5, System.Threading.CancellationToken cancellationToken);[<Microsoft.Azure.Storage.DoesServiceRequest>]
abstract member AppendBlockAsync : System.IO.Stream * string * System.Threading.CancellationToken -> System.Threading.Tasks.Task<int64>
override this.AppendBlockAsync : System.IO.Stream * string * System.Threading.CancellationToken -> System.Threading.Tasks.Task<int64>Public Overridable Function AppendBlockAsync (blockData As Stream, contentMD5 As String, cancellationToken As CancellationToken) As Task(Of Long)Parameters
- contentMD5
- String
An optional hash value used to ensure transactional integrity. May be null or an empty string.
- cancellationToken
- CancellationToken
A CancellationToken to observe while waiting for a task to complete.
Returns
A Task object that represents the asynchronous operation.
- Attributes
Remarks
Clients may send the Content-MD5 header for a given Put Block operation as a means to ensure transactional integrity over the wire. The contentMD5 parameter permits clients who already have access to a pre-computed MD5 value for a given byte range to provide it. If the BlobRequestOptions.UseTransactionalMd5 property is set to true and the contentMD5 parameter is set to null, then the client library will calculate the MD5 value internally.
Applies to
AppendBlockAsync(Stream, String, AccessCondition, BlobRequestOptions, OperationContext)
Initiates an asynchronous operation to commit a new block of data to the end of the blob.
[Microsoft.Azure.Storage.DoesServiceRequest]
public virtual System.Threading.Tasks.Task<long> AppendBlockAsync (System.IO.Stream blockData, string contentMD5, Microsoft.Azure.Storage.AccessCondition accessCondition, Microsoft.Azure.Storage.Blob.BlobRequestOptions options, Microsoft.Azure.Storage.OperationContext operationContext);[<Microsoft.Azure.Storage.DoesServiceRequest>]
abstract member AppendBlockAsync : System.IO.Stream * string * Microsoft.Azure.Storage.AccessCondition * Microsoft.Azure.Storage.Blob.BlobRequestOptions * Microsoft.Azure.Storage.OperationContext -> System.Threading.Tasks.Task<int64>
override this.AppendBlockAsync : System.IO.Stream * string * Microsoft.Azure.Storage.AccessCondition * Microsoft.Azure.Storage.Blob.BlobRequestOptions * Microsoft.Azure.Storage.OperationContext -> System.Threading.Tasks.Task<int64>Public Overridable Function AppendBlockAsync (blockData As Stream, contentMD5 As String, accessCondition As AccessCondition, options As BlobRequestOptions, operationContext As OperationContext) As Task(Of Long)Parameters
- contentMD5
- String
An optional hash value used to ensure transactional integrity. May be null or an empty string.
- accessCondition
- AccessCondition
An AccessCondition object that represents the condition that must be met in order for the request to proceed. If null, no condition is used.
- options
- BlobRequestOptions
A BlobRequestOptions object that specifies additional options for the request.
- operationContext
- OperationContext
An OperationContext object that represents the context for the current operation.
Returns
A Task object that represents the asynchronous operation.
- Attributes
Remarks
Clients may send the Content-MD5 header for a given Append Block operation as a means to ensure transactional integrity over the wire. The contentMD5 parameter permits clients who already have access to a pre-computed MD5 value for a given byte range to provide it. If the BlobRequestOptions.UseTransactionalMd5 property is set to true and the contentMD5 parameter is set to null, then the client library will calculate the MD5 value internally.
Applies to
AppendBlockAsync(Stream, String, AccessCondition, BlobRequestOptions, OperationContext, CancellationToken)
Initiates an asynchronous operation to commit a new block of data to the end of the blob.
[Microsoft.Azure.Storage.DoesServiceRequest]
public virtual System.Threading.Tasks.Task<long> AppendBlockAsync (System.IO.Stream blockData, string contentMD5, Microsoft.Azure.Storage.AccessCondition accessCondition, Microsoft.Azure.Storage.Blob.BlobRequestOptions options, Microsoft.Azure.Storage.OperationContext operationContext, System.Threading.CancellationToken cancellationToken);[<Microsoft.Azure.Storage.DoesServiceRequest>]
abstract member AppendBlockAsync : System.IO.Stream * string * Microsoft.Azure.Storage.AccessCondition * Microsoft.Azure.Storage.Blob.BlobRequestOptions * Microsoft.Azure.Storage.OperationContext * System.Threading.CancellationToken -> System.Threading.Tasks.Task<int64>
override this.AppendBlockAsync : System.IO.Stream * string * Microsoft.Azure.Storage.AccessCondition * Microsoft.Azure.Storage.Blob.BlobRequestOptions * Microsoft.Azure.Storage.OperationContext * System.Threading.CancellationToken -> System.Threading.Tasks.Task<int64>Public Overridable Function AppendBlockAsync (blockData As Stream, contentMD5 As String, accessCondition As AccessCondition, options As BlobRequestOptions, operationContext As OperationContext, cancellationToken As CancellationToken) As Task(Of Long)Parameters
- contentMD5
- String
An optional hash value used to ensure transactional integrity. May be null or an empty string.
- accessCondition
- AccessCondition
An AccessCondition object that represents the condition that must be met in order for the request to proceed. If null, no condition is used.
- options
- BlobRequestOptions
A BlobRequestOptions object that specifies additional options for the request.
- operationContext
- OperationContext
An OperationContext object that represents the context for the current operation.
- cancellationToken
- CancellationToken
A CancellationToken to observe while waiting for a task to complete.
Returns
A Task object that represents the asynchronous operation.
- Attributes
Remarks
Clients may send the Content-MD5 header for a given Append Block operation as a means to ensure transactional integrity over the wire. The contentMD5 parameter permits clients who already have access to a pre-computed MD5 value for a given byte range to provide it. If the BlobRequestOptions.UseTransactionalMd5 property is set to true and the contentMD5 parameter is set to null, then the client library will calculate the MD5 value internally.
Applies to
AppendBlockAsync(Stream, String, AccessCondition, BlobRequestOptions, OperationContext, IProgress<StorageProgress>, CancellationToken)
Initiates an asynchronous operation to commit a new block of data to the end of the blob.
[Microsoft.Azure.Storage.DoesServiceRequest]
public virtual System.Threading.Tasks.Task<long> AppendBlockAsync (System.IO.Stream blockData, string contentMD5, Microsoft.Azure.Storage.AccessCondition accessCondition, Microsoft.Azure.Storage.Blob.BlobRequestOptions options, Microsoft.Azure.Storage.OperationContext operationContext, IProgress<Microsoft.Azure.Storage.Core.Util.StorageProgress> progressHandler, System.Threading.CancellationToken cancellationToken);[<Microsoft.Azure.Storage.DoesServiceRequest>]
abstract member AppendBlockAsync : System.IO.Stream * string * Microsoft.Azure.Storage.AccessCondition * Microsoft.Azure.Storage.Blob.BlobRequestOptions * Microsoft.Azure.Storage.OperationContext * IProgress<Microsoft.Azure.Storage.Core.Util.StorageProgress> * System.Threading.CancellationToken -> System.Threading.Tasks.Task<int64>
override this.AppendBlockAsync : System.IO.Stream * string * Microsoft.Azure.Storage.AccessCondition * Microsoft.Azure.Storage.Blob.BlobRequestOptions * Microsoft.Azure.Storage.OperationContext * IProgress<Microsoft.Azure.Storage.Core.Util.StorageProgress> * System.Threading.CancellationToken -> System.Threading.Tasks.Task<int64>Public Overridable Function AppendBlockAsync (blockData As Stream, contentMD5 As String, accessCondition As AccessCondition, options As BlobRequestOptions, operationContext As OperationContext, progressHandler As IProgress(Of StorageProgress), cancellationToken As CancellationToken) As Task(Of Long)Parameters
- contentMD5
- String
An optional hash value used to ensure transactional integrity. May be null or an empty string.
- accessCondition
- AccessCondition
An AccessCondition object that represents the condition that must be met in order for the request to proceed. If null, no condition is used.
- options
- BlobRequestOptions
A BlobRequestOptions object that specifies additional options for the request.
- operationContext
- OperationContext
An OperationContext object that represents the context for the current operation.
- progressHandler
- IProgress<StorageProgress>
A IProgress<T> object to handle StorageProgress messages.
- cancellationToken
- CancellationToken
A CancellationToken to observe while waiting for a task to complete.
Returns
A Task object that represents the asynchronous operation.
- Attributes
Remarks
Clients may send the Content-MD5 header for a given Append Block operation as a means to ensure transactional integrity over the wire. The contentMD5 parameter permits clients who already have access to a pre-computed MD5 value for a given byte range to provide it. If the BlobRequestOptions.UseTransactionalMd5 property is set to true and the contentMD5 parameter is set to null, then the client library will calculate the MD5 value internally.
Applies to
AppendBlockAsync(Uri, Int64, Int64, String, AccessCondition, AccessCondition, BlobRequestOptions, OperationContext, CancellationToken)
Commits a new block of data to the end of the blob.
[Microsoft.Azure.Storage.DoesServiceRequest]
public virtual System.Threading.Tasks.Task<long> AppendBlockAsync (Uri sourceUri, long offset, long count, string sourceContentMd5, Microsoft.Azure.Storage.AccessCondition sourceAccessCondition, Microsoft.Azure.Storage.AccessCondition destAccessCondition, Microsoft.Azure.Storage.Blob.BlobRequestOptions options, Microsoft.Azure.Storage.OperationContext operationContext, System.Threading.CancellationToken cancellationToken);[<Microsoft.Azure.Storage.DoesServiceRequest>]
abstract member AppendBlockAsync : Uri * int64 * int64 * string * Microsoft.Azure.Storage.AccessCondition * Microsoft.Azure.Storage.AccessCondition * Microsoft.Azure.Storage.Blob.BlobRequestOptions * Microsoft.Azure.Storage.OperationContext * System.Threading.CancellationToken -> System.Threading.Tasks.Task<int64>
override this.AppendBlockAsync : Uri * int64 * int64 * string * Microsoft.Azure.Storage.AccessCondition * Microsoft.Azure.Storage.AccessCondition * Microsoft.Azure.Storage.Blob.BlobRequestOptions * Microsoft.Azure.Storage.OperationContext * System.Threading.CancellationToken -> System.Threading.Tasks.Task<int64>Public Overridable Function AppendBlockAsync (sourceUri As Uri, offset As Long, count As Long, sourceContentMd5 As String, sourceAccessCondition As AccessCondition, destAccessCondition As AccessCondition, options As BlobRequestOptions, operationContext As OperationContext, cancellationToken As CancellationToken) As Task(Of Long)Parameters
- offset
- Int64
The byte offset in the source at which to begin retrieving content.
- count
- Int64
The number of bytes from the source to return, or null to return all bytes through the end of the blob.
- sourceContentMd5
- String
An optional hash value that will be used to set the ContentMD5 property
on the blob. May be null or an empty string.
- sourceAccessCondition
- AccessCondition
An AccessCondition object that represents the access conditions for the source blob. If null, no condition is used.
- destAccessCondition
- AccessCondition
An AccessCondition object that represents the access conditions for the destination blob. If null, no condition is used.
- options
- BlobRequestOptions
A BlobRequestOptions object that specifies additional options for the request.
- operationContext
- OperationContext
An OperationContext object that represents the context for the current operation.
- cancellationToken
- CancellationToken
A CancellationToken to observe while waiting for a task to complete.
Returns
A Task that represents an asynchronous action.
- Attributes
Applies to
Azure SDK for .NET