Package com.azure.storage.blob.specialized

Class BlockBlobAsyncClient

  • public final class BlockBlobAsyncClient
extends BlobAsyncClientBase
    Client to a block blob. It may only be instantiated through a SpecializedBlobClientBuilder or via the method BlobAsyncClient.getBlockBlobAsyncClient(). This class does not hold any state about a particular blob, but is instead a convenient way of sending appropriate requests to the resource on the service.

    Please refer to the Azure Docs for more information.

    Note this client is an async client that returns reactive responses from Spring Reactor Core project (https://projectreactor.io/). Calling the methods in this client will NOT start the actual network operation, until .subscribe() is called on the reactive response. You can simply convert one of these responses to a CompletableFuture object through Mono.toFuture().

    • Field Detail

      • MAX_UPLOAD_BLOB_BYTES_LONG

        public static final long MAX_UPLOAD_BLOB_BYTES_LONG
        Indicates the maximum number of bytes that can be sent in a call to upload.
        See Also:
        Constant Field Values

      • MAX_STAGE_BLOCK_BYTES_LONG

        public static final long MAX_STAGE_BLOCK_BYTES_LONG
        Indicates the maximum number of bytes that can be sent in a call to stageBlock.
        See Also:
        Constant Field Values

      • MAX_BLOCKS

        public static final int MAX_BLOCKS
        Indicates the maximum number of blocks allowed in a block blob.
        See Also:
        Constant Field Values

    • Method Detail

      • upload

        public Mono<BlockBlobItem> upload​(Flux<ByteBuffer> data,
                                  long length)
        Creates a new block blob. By default, this method will not overwrite an existing blob. Updating an existing block blob overwrites any existing metadata on the blob. Partial updates are not supported with PutBlob; the content of the existing blob is overwritten with the new content. To perform a partial update of a block blob's, use PutBlock and PutBlockList. For more information, see the Azure Docs.

        Note that the data passed must be replayable if retries are enabled (the default). In other words, the Flux must produce the same data each time it is subscribed to.

        Code Samples

         client.upload(data, length).subscribe(response ->
     System.out.printf("Uploaded BlockBlob MD5 is %s%n",
         Base64.getEncoder().encodeToString(response.getContentMd5())));
        Parameters:
        data - The data to write to the blob. Note that this Flux must be replayable if retries are enabled (the default). In other words, the Flux must produce the same data each time it is subscribed to.
        length - The exact length of the data. It is important that this value match precisely the length of the data emitted by the Flux.
        Returns:
        A reactive response containing the information of the uploaded block blob.

      • upload

        public Mono<BlockBlobItem> upload​(Flux<ByteBuffer> data,
                                  long length,
                                  boolean overwrite)
        Creates a new block blob, or updates the content of an existing block blob. Updating an existing block blob overwrites any existing metadata on the blob. Partial updates are not supported with PutBlob; the content of the existing blob is overwritten with the new content. To perform a partial update of a block blob's, use PutBlock and PutBlockList. For more information, see the Azure Docs.

        Note that the data passed must be replayable if retries are enabled (the default). In other words, the Flux must produce the same data each time it is subscribed to.

        Code Samples

         boolean overwrite = false; // Default behavior
 client.upload(data, length, overwrite).subscribe(response ->
     System.out.printf("Uploaded BlockBlob MD5 is %s%n",
         Base64.getEncoder().encodeToString(response.getContentMd5())));
        Parameters:
        data - The data to write to the blob. Note that this Flux must be replayable if retries are enabled (the default). In other words, the Flux must produce the same data each time it is subscribed to.
        length - The exact length of the data. It is important that this value match precisely the length of the data emitted by the Flux.
        overwrite - Whether to overwrite, should data exist on the blob.
        Returns:
        A reactive response containing the information of the uploaded block blob.

      • uploadWithResponse

        public Mono<com.azure.core.http.rest.Response<BlockBlobItem>> uploadWithResponse​(Flux<ByteBuffer> data,
                                                                                 long length,
                                                                                 BlobHttpHeaders headers,
                                                                                 Map<String,​String> metadata,
                                                                                 AccessTier tier,
                                                                                 byte[] contentMd5,
                                                                                 BlobRequestConditions requestConditions)
        Creates a new block blob, or updates the content of an existing block blob.

        Updating an existing block blob overwrites any existing metadata on the blob. Partial updates are not supported with PutBlob; the content of the existing blob is overwritten with the new content. To perform a partial update of a block blob's, use PutBlock and PutBlockList. For more information, see the Azure Docs.

        Note that the data passed must be replayable if retries are enabled (the default). In other words, the Flux must produce the same data each time it is subscribed to.

        To avoid overwriting, pass "*" to BlobRequestConditions.setIfNoneMatch(String).

        Code Samples

         BlobHttpHeaders headers = new BlobHttpHeaders()
     .setContentMd5("data".getBytes(StandardCharsets.UTF_8))
     .setContentLanguage("en-US")
     .setContentType("binary");

 Map<String, String> metadata = Collections.singletonMap("metadata", "value");
 byte[] md5 = MessageDigest.getInstance("MD5").digest("data".getBytes(StandardCharsets.UTF_8));
 BlobRequestConditions requestConditions = new BlobRequestConditions()
     .setLeaseId(leaseId)
     .setIfUnmodifiedSince(OffsetDateTime.now().minusDays(3));

 client.uploadWithResponse(data, length, headers, metadata, AccessTier.HOT, md5, requestConditions)
     .subscribe(response -> System.out.printf("Uploaded BlockBlob MD5 is %s%n",
         Base64.getEncoder().encodeToString(response.getValue().getContentMd5())));
        Parameters:
        data - The data to write to the blob. Note that this Flux must be replayable if retries are enabled (the default). In other words, the Flux must produce the same data each time it is subscribed to.
        length - The exact length of the data. It is important that this value match precisely the length of the data emitted by the Flux.
        headers - BlobHttpHeaders
        metadata - Metadata to associate with the blob. If there is leading or trailing whitespace in any metadata key or value, it must be removed or encoded.
        tier - AccessTier for the destination blob.
        contentMd5 - An MD5 hash of the blob content. This hash is used to verify the integrity of the blob during transport. When this header is specified, the storage service compares the hash of the content that has arrived with this header value. Note that this MD5 hash is not stored with the blob. If the two hashes do not match, the operation will fail.
        requestConditions - BlobRequestConditions
        Returns:
        A reactive response containing the information of the uploaded block blob.

      • uploadWithResponse

        public Mono<com.azure.core.http.rest.Response<BlockBlobItem>> uploadWithResponse​(BlockBlobSimpleUploadOptions options)
        Creates a new block blob, or updates the content of an existing block blob.

        Updating an existing block blob overwrites any existing metadata on the blob. Partial updates are not supported with PutBlob; the content of the existing blob is overwritten with the new content. To perform a partial update of a block blob's, use PutBlock and PutBlockList. For more information, see the Azure Docs.

        Note that the data passed must be replayable if retries are enabled (the default). In other words, the Flux must produce the same data each time it is subscribed to.

        To avoid overwriting, pass "*" to BlobRequestConditions.setIfNoneMatch(String).

        Code Samples

         BlobHttpHeaders headers = new BlobHttpHeaders()
     .setContentMd5("data".getBytes(StandardCharsets.UTF_8))
     .setContentLanguage("en-US")
     .setContentType("binary");

 Map<String, String> metadata = Collections.singletonMap("metadata", "value");
 Map<String, String> tags = Collections.singletonMap("tag", "value");
 byte[] md5 = MessageDigest.getInstance("MD5").digest("data".getBytes(StandardCharsets.UTF_8));
 BlobRequestConditions requestConditions = new BlobRequestConditions()
     .setLeaseId(leaseId)
     .setIfUnmodifiedSince(OffsetDateTime.now().minusDays(3));

 client.uploadWithResponse(new BlockBlobSimpleUploadOptions(data, length).setHeaders(headers)
     .setMetadata(metadata).setTags(tags).setTier(AccessTier.HOT).setContentMd5(md5)
     .setRequestConditions(requestConditions))
     .subscribe(response -> System.out.printf("Uploaded BlockBlob MD5 is %s%n",
         Base64.getEncoder().encodeToString(response.getValue().getContentMd5())));
        Parameters:
        options - BlockBlobSimpleUploadOptions
        Returns:
        A reactive response containing the information of the uploaded block blob.

      • uploadFromUrl

        public Mono<BlockBlobItem> uploadFromUrl​(String sourceUrl)
        Creates a new block blob, or updates the content of an existing block blob.

        Updating an existing block blob overwrites any existing metadata on the blob. Partial updates are not supported with PutBlobFromUrl; the content of the existing blob is overwritten with the new content. For more information, see the Azure Docs.

        Code Samples

         client.uploadFromUrl(sourceUrl)
     .subscribe(response ->
         System.out.printf("Uploaded BlockBlob from URL, MD5 is %s%n",
             Base64.getEncoder().encodeToString(response.getContentMd5())));
        Parameters:
        sourceUrl - The source URL to upload from.
        Returns:
        A reactive response containing the information of the uploaded block blob.

      • uploadFromUrl

        public Mono<BlockBlobItem> uploadFromUrl​(String sourceUrl,
                                         boolean overwrite)
        Creates a new block blob, or updates the content of an existing block blob.

        Updating an existing block blob overwrites any existing metadata on the blob. Partial updates are not supported with PutBlobFromUrl; the content of the existing blob is overwritten with the new content. For more information, see the Azure Docs.

        Code Samples

         boolean overwrite = false; // Default behavior
 client.uploadFromUrl(sourceUrl, overwrite).subscribe(response ->
     System.out.printf("Uploaded BlockBlob from URL, MD5 is %s%n",
         Base64.getEncoder().encodeToString(response.getContentMd5())));
        Parameters:
        sourceUrl - The source URL to upload from.
        overwrite - Whether to overwrite, should data exist on the blob.
        Returns:
        A reactive response containing the information of the uploaded block blob.

      • uploadFromUrlWithResponse

        public Mono<com.azure.core.http.rest.Response<BlockBlobItem>> uploadFromUrlWithResponse​(BlobUploadFromUrlOptions options)
        Creates a new block blob, or updates the content of an existing block blob.

        Updating an existing block blob overwrites any existing metadata on the blob. Partial updates are not supported with PutBlobFromUrl; the content of the existing blob is overwritten with the new content. For more information, see the Azure Docs.

        To avoid overwriting, pass "*" to BlobRequestConditions.setIfNoneMatch(String).

        Code Samples

         BlobHttpHeaders headers = new BlobHttpHeaders()
     .setContentMd5("data".getBytes(StandardCharsets.UTF_8))
     .setContentLanguage("en-US")
     .setContentType("binary");

 Map<String, String> metadata = Collections.singletonMap("metadata", "value");
 Map<String, String> tags = Collections.singletonMap("tag", "value");
 byte[] md5 = MessageDigest.getInstance("MD5").digest("data".getBytes(StandardCharsets.UTF_8));
 BlobRequestConditions requestConditions = new BlobRequestConditions()
     .setLeaseId(leaseId)
     .setIfUnmodifiedSince(OffsetDateTime.now().minusDays(3));

 client.uploadFromUrlWithResponse(new BlobUploadFromUrlOptions(sourceUrl).setHeaders(headers)
     .setTags(tags).setTier(AccessTier.HOT).setContentMd5(md5)
     .setDestinationRequestConditions(requestConditions))
     .subscribe(response -> System.out.printf("Uploaded BlockBlob from URL, MD5 is %s%n",
         Base64.getEncoder().encodeToString(response.getValue().getContentMd5())));
        Parameters:
        options - BlobUploadFromUrlOptions
        Returns:
        A reactive response containing the information of the uploaded block blob.

      • stageBlock

        public Mono<Void> stageBlock​(String base64BlockId,
                             Flux<ByteBuffer> data,
                             long length)
        Uploads the specified block to the block blob's "staging area" to be later committed by a call to commitBlockList. For more information, see the Azure Docs.

        Note that the data passed must be replayable if retries are enabled (the default). In other words, the

        Parameters:
        base64BlockId - A Base64 encoded String that specifies the ID for this block. Note that all block ids for a given blob must be the same length.
        data - The data to write to the block. Note that this Flux must be replayable if retries are enabled (the default). In other words, the Flux must produce the same data each time it is subscribed to.
        length - The exact length of the data. It is important that this value match precisely the length of the data emitted by the Flux.
        Returns:
        A reactive response signalling completion.

        Code Samples

         client.stageBlock(base64BlockID, data, length)
     .subscribe(
         response -> System.out.println("Staging block completed"),
         error -> System.out.printf("Error when calling stage Block: %s", error));

      • stageBlockWithResponse

        public Mono<com.azure.core.http.rest.Response<Void>> stageBlockWithResponse​(String base64BlockId,
                                                                            Flux<ByteBuffer> data,
                                                                            long length,
                                                                            byte[] contentMd5,
                                                                            String leaseId)
        Uploads the specified block to the block blob's "staging area" to be later committed by a call to commitBlockList. For more information, see the Azure Docs.

        Note that the data passed must be replayable if retries are enabled (the default). In other words, the Flux must produce the same data each time it is subscribed to.

        Code Samples

         client.stageBlockWithResponse(base64BlockID, data, length, md5, leaseId).subscribe(response ->
     System.out.printf("Staging block completed with status %d%n", response.getStatusCode()));
        Parameters:
        base64BlockId - A Base64 encoded String that specifies the ID for this block. Note that all block ids for a given blob must be the same length.
        data - The data to write to the block. Note that this Flux must be replayable if retries are enabled (the default). In other words, the Flux must produce the same data each time it is subscribed to.
        length - The exact length of the data. It is important that this value match precisely the length of the data emitted by the Flux.
        contentMd5 - An MD5 hash of the block content. This hash is used to verify the integrity of the block during transport. When this header is specified, the storage service compares the hash of the content that has arrived with this header value. Note that this MD5 hash is not stored with the blob. If the two hashes do not match, the operation will fail.
        leaseId - The lease ID the active lease on the blob must match.
        Returns:
        A reactive response signalling completion.

      • stageBlockFromUrl

        public Mono<Void> stageBlockFromUrl​(String base64BlockId,
                                    String sourceUrl,
                                    BlobRange sourceRange)
        Creates a new block to be committed as part of a blob where the contents are read from a URL. For more information, see the Azure Docs.

        Code Samples

         client.stageBlockFromUrl(base64BlockID, sourceUrl, new BlobRange(offset, count))
     .subscribe(
         response -> System.out.println("Staging block completed"),
         error -> System.out.printf("Error when calling stage Block: %s", error));
        Parameters:
        base64BlockId - A Base64 encoded String that specifies the ID for this block. Note that all block ids for a given blob must be the same length.
        sourceUrl - The url to the blob that will be the source of the copy. A source blob in the same storage account can be authenticated via Shared Key. However, if the source is a blob in another account, the source blob must either be public or must be authenticated via a shared access signature. If the source blob is public, no authentication is required to perform the operation.
        sourceRange - BlobRange
        Returns:
        A reactive response signalling completion.

      • stageBlockFromUrlWithResponse

        public Mono<com.azure.core.http.rest.Response<Void>> stageBlockFromUrlWithResponse​(String base64BlockId,
                                                                                   String sourceUrl,
                                                                                   BlobRange sourceRange,
                                                                                   byte[] sourceContentMd5,
                                                                                   String leaseId,
                                                                                   BlobRequestConditions sourceRequestConditions)
        Creates a new block to be committed as part of a blob where the contents are read from a URL. For more information, see the Azure Docs.

        Code Samples

         BlobRequestConditions sourceRequestConditions = new BlobRequestConditions()
     .setIfUnmodifiedSince(OffsetDateTime.now().minusDays(3));

 client.stageBlockFromUrlWithResponse(base64BlockID, sourceUrl, new BlobRange(offset, count), null,
     leaseId, sourceRequestConditions).subscribe(response ->
     System.out.printf("Staging block from URL completed with status %d%n", response.getStatusCode()));
        Parameters:
        base64BlockId - A Base64 encoded String that specifies the ID for this block. Note that all block ids for a given blob must be the same length.
        sourceUrl - The url to the blob that will be the source of the copy. A source blob in the same storage account can be authenticated via Shared Key. However, if the source is a blob in another account, the source blob must either be public or must be authenticated via a shared access signature. If the source blob is public, no authentication is required to perform the operation.
        sourceRange - BlobRange
        sourceContentMd5 - An MD5 hash of the block content. This hash is used to verify the integrity of the block during transport. When this header is specified, the storage service compares the hash of the content that has arrived with this header value. Note that this MD5 hash is not stored with the blob. If the two hashes do not match, the operation will fail.
        leaseId - The lease ID that the active lease on the blob must match.
        sourceRequestConditions - BlobRequestConditions
        Returns:
        A reactive response signalling completion.

      • stageBlockFromUrlWithResponse

        public Mono<com.azure.core.http.rest.Response<Void>> stageBlockFromUrlWithResponse​(BlockBlobStageBlockFromUrlOptions options)
        Creates a new block to be committed as part of a blob where the contents are read from a URL. For more information, see the Azure Docs.

        Code Samples

         BlobRequestConditions sourceRequestConditions = new BlobRequestConditions()
     .setIfUnmodifiedSince(OffsetDateTime.now().minusDays(3));

 client.stageBlockFromUrlWithResponse(new BlockBlobStageBlockFromUrlOptions(base64BlockID, sourceUrl)
     .setSourceRange(new BlobRange(offset, count)).setLeaseId(leaseId)
     .setSourceRequestConditions(sourceRequestConditions)).subscribe(response ->
     System.out.printf("Staging block from URL completed with status %d%n", response.getStatusCode()));
        Parameters:
        options - parameters for the operation.
        Returns:
        A reactive response signalling completion.

      • listBlocks

        public Mono<BlockList> listBlocks​(BlockListType listType)
        Returns the list of blocks that have been uploaded as part of a block blob using the specified block list filter. For more information, see the Azure Docs.

        Code Samples

         client.listBlocks(BlockListType.ALL).subscribe(block -> {
     System.out.println("Committed Blocks:");
     block.getCommittedBlocks().forEach(b -> System.out.printf("Name: %s, Size: %d", b.getName(), b.getSizeLong()));

     System.out.println("Uncommitted Blocks:");
     block.getUncommittedBlocks().forEach(b -> System.out.printf("Name: %s, Size: %d", b.getName(), b.getSizeLong()));
 });
        Parameters:
        listType - Specifies which type of blocks to return.
        Returns:
        A reactive response containing the list of blocks.

      • listBlocksWithResponse

        public Mono<com.azure.core.http.rest.Response<BlockList>> listBlocksWithResponse​(BlockListType listType,
                                                                                 String leaseId)
        Returns the list of blocks that have been uploaded as part of a block blob using the specified block list filter. For more information, see the Azure Docs.

        Code Samples

         client.listBlocksWithResponse(BlockListType.ALL, leaseId).subscribe(response -> {
     BlockList block = response.getValue();
     System.out.println("Committed Blocks:");
     block.getCommittedBlocks().forEach(b -> System.out.printf("Name: %s, Size: %d", b.getName(), b.getSizeLong()));

     System.out.println("Uncommitted Blocks:");
     block.getUncommittedBlocks().forEach(b -> System.out.printf("Name: %s, Size: %d", b.getName(), b.getSizeLong()));
 });
        Parameters:
        listType - Specifies which type of blocks to return.
        leaseId - The lease ID the active lease on the blob must match.
        Returns:
        A reactive response containing the list of blocks.

      • listBlocksWithResponse

        public Mono<com.azure.core.http.rest.Response<BlockList>> listBlocksWithResponse​(BlockBlobListBlocksOptions options)
        Returns the list of blocks that have been uploaded as part of a block blob using the specified block list filter. For more information, see the Azure Docs.

        Code Samples

         client.listBlocksWithResponse(new BlockBlobListBlocksOptions(BlockListType.ALL)
     .setLeaseId(leaseId)
     .setIfTagsMatch(tags)).subscribe(response -> {
         BlockList block = response.getValue();
         System.out.println("Committed Blocks:");
         block.getCommittedBlocks().forEach(b -> System.out.printf("Name: %s, Size: %d", b.getName(),
             b.getSizeLong()));

         System.out.println("Uncommitted Blocks:");
         block.getUncommittedBlocks().forEach(b -> System.out.printf("Name: %s, Size: %d", b.getName(),
             b.getSizeLong()));
     });
        Parameters:
        options - BlockBlobListBlocksOptions
        Returns:
        A reactive response containing the list of blocks.

      • commitBlockList

        public Mono<BlockBlobItem> commitBlockList​(List<String> base64BlockIds)
        Writes a blob by specifying the list of block IDs that are to make up the blob. In order to be written as part of a blob, a block must have been successfully written to the server in a prior stageBlock operation. You can call commitBlockList to update a blob by uploading only those blocks that have changed, then committing the new and existing blocks together. Any blocks not specified in the block list and permanently deleted. For more information, see the Azure Docs.

        Code Samples

         client.commitBlockList(Collections.singletonList(base64BlockID)).subscribe(response ->
     System.out.printf("Committing block list completed. Last modified: %s%n", response.getLastModified()));
        Parameters:
        base64BlockIds - A list of base64 encode Strings that specifies the block IDs to be committed.
        Returns:
        A reactive response containing the information of the block blob.

      • commitBlockList

        public Mono<BlockBlobItem> commitBlockList​(List<String> base64BlockIds,
                                           boolean overwrite)
        Writes a blob by specifying the list of block IDs that are to make up the blob. In order to be written as part of a blob, a block must have been successfully written to the server in a prior stageBlock operation. You can call commitBlockList to update a blob by uploading only those blocks that have changed, then committing the new and existing blocks together. Any blocks not specified in the block list and permanently deleted. For more information, see the Azure Docs.

        Code Samples

         boolean overwrite = false; // Default behavior
 client.commitBlockList(Collections.singletonList(base64BlockID), overwrite).subscribe(response ->
     System.out.printf("Committing block list completed. Last modified: %s%n", response.getLastModified()));
        Parameters:
        base64BlockIds - A list of base64 encode Strings that specifies the block IDs to be committed.
        overwrite - Whether to overwrite, should data exist on the blob.
        Returns:
        A reactive response containing the information of the block blob.

      • commitBlockListWithResponse

        public Mono<com.azure.core.http.rest.Response<BlockBlobItem>> commitBlockListWithResponse​(List<String> base64BlockIds,
                                                                                          BlobHttpHeaders headers,
                                                                                          Map<String,​String> metadata,
                                                                                          AccessTier tier,
                                                                                          BlobRequestConditions requestConditions)
        Writes a blob by specifying the list of block IDs that are to make up the blob. In order to be written as part of a blob, a block must have been successfully written to the server in a prior stageBlock operation. You can call commitBlockList to update a blob by uploading only those blocks that have changed, then committing the new and existing blocks together. Any blocks not specified in the block list and permanently deleted. For more information, see the Azure Docs.

        To avoid overwriting, pass "*" to BlobRequestConditions.setIfNoneMatch(String).

        Code Samples

         BlobHttpHeaders headers = new BlobHttpHeaders()
     .setContentMd5("data".getBytes(StandardCharsets.UTF_8))
     .setContentLanguage("en-US")
     .setContentType("binary");

 Map<String, String> metadata = Collections.singletonMap("metadata", "value");
 BlobRequestConditions requestConditions = new BlobRequestConditions()
     .setLeaseId(leaseId)
     .setIfUnmodifiedSince(OffsetDateTime.now().minusDays(3));
 client.commitBlockListWithResponse(Collections.singletonList(base64BlockID), headers, metadata,
     AccessTier.HOT, requestConditions).subscribe(response ->
         System.out.printf("Committing block list completed with status %d%n", response.getStatusCode()));
        Parameters:
        base64BlockIds - A list of base64 encode Strings that specifies the block IDs to be committed.
        headers - BlobHttpHeaders
        metadata - Metadata to associate with the blob. If there is leading or trailing whitespace in any metadata key or value, it must be removed or encoded.
        tier - AccessTier for the destination blob.
        requestConditions - BlobRequestConditions
        Returns:
        A reactive response containing the information of the block blob.

      • commitBlockListWithResponse

        public Mono<com.azure.core.http.rest.Response<BlockBlobItem>> commitBlockListWithResponse​(BlockBlobCommitBlockListOptions options)
        Writes a blob by specifying the list of block IDs that are to make up the blob. In order to be written as part of a blob, a block must have been successfully written to the server in a prior stageBlock operation. You can call commitBlockList to update a blob by uploading only those blocks that have changed, then committing the new and existing blocks together. Any blocks not specified in the block list and permanently deleted. For more information, see the Azure Docs.

        To avoid overwriting, pass "*" to BlobRequestConditions.setIfNoneMatch(String).

        Code Samples

         BlobHttpHeaders headers = new BlobHttpHeaders()
     .setContentMd5("data".getBytes(StandardCharsets.UTF_8))
     .setContentLanguage("en-US")
     .setContentType("binary");

 Map<String, String> metadata = Collections.singletonMap("metadata", "value");
 Map<String, String> tags = Collections.singletonMap("tag", "value");
 BlobRequestConditions requestConditions = new BlobRequestConditions()
     .setLeaseId(leaseId)
     .setIfUnmodifiedSince(OffsetDateTime.now().minusDays(3));
 client.commitBlockListWithResponse(new BlockBlobCommitBlockListOptions(Collections.singletonList(base64BlockID))
     .setHeaders(headers).setMetadata(metadata).setTags(tags).setTier(AccessTier.HOT)
     .setRequestConditions(requestConditions))
     .subscribe(response ->
     System.out.printf("Committing block list completed with status %d%n", response.getStatusCode()));
        Parameters:
        options - BlockBlobCommitBlockListOptions
        Returns:
        A reactive response containing the information of the block blob.