async def set_queue_metadata(self, queue_name, metadata=None, timeout=None): ''' Sets user-defined metadata on the specified queue. Metadata is associated with the queue as name-value pairs. :param str queue_name: The name of an existing queue. :param dict metadata: A dict containing name-value pairs to associate with the queue as metadata. :param int timeout: The server timeout, expressed in seconds. ''' _validate_not_none('queue_name', queue_name) request = HTTPRequest() request.method = 'PUT' request.host_locations = self._get_host_locations() request.path = _get_path(queue_name) self._set_basic_headers(request) request.query = { 'comp': 'metadata', 'timeout': _int_to_str(timeout), } _add_metadata_headers(metadata, request) await self._perform_request(request)
async def get_queue_service_stats(self, timeout=None): ''' Retrieves statistics related to replication for the Queue service. It is only available when read-access geo-redundant replication is enabled for the azure_async account. With geo-redundant replication, Azure Storage maintains your data durable in two locations. In both locations, Azure Storage constantly maintains multiple healthy replicas of your data. The location where you read, create, update, or delete data is the primary azure_async account location. The primary location exists in the region you choose at the time you create an account via the Azure Management Azure classic portal, for example, North Central US. The location to which your data is replicated is the secondary location. The secondary location is automatically determined based on the location of the primary; it is in a second data center that resides in the same region as the primary location. Read-only access is available from the secondary location, if read-access geo-redundant replication is enabled for your azure_async account. :param int timeout: The timeout parameter is expressed in seconds. :return: The queue service stats. :rtype: :class:`~azure.azure_async.common.models.ServiceStats` ''' request = HTTPRequest() request.method = 'GET' request.host_locations = self._get_host_locations(primary=False, secondary=True) request.path = _get_path() request.query = { 'restype': 'service', 'comp': 'stats', 'timeout': _int_to_str(timeout), } return await self._perform_request(request, _convert_xml_to_service_stats)
async def get_queue_metadata(self, queue_name, timeout=None): ''' Retrieves user-defined metadata and queue properties on the specified queue. Metadata is associated with the queue as name-value pairs. :param str queue_name: The name of an existing queue. :param int timeout: The server timeout, expressed in seconds. :return: A dictionary representing the queue metadata with an approximate_message_count int property on the dict estimating the number of messages in the queue. :rtype: dict(str, str) ''' _validate_not_none('queue_name', queue_name) request = HTTPRequest() request.method = 'GET' request.host_locations = self._get_host_locations(secondary=True) request.path = _get_path(queue_name) request.query = { 'comp': 'metadata', 'timeout': _int_to_str(timeout), } return await self._perform_request(request, _parse_metadata_and_message_count)
async def create_queue(self, queue_name, metadata=None, fail_on_exist=False, timeout=None): ''' Creates a queue under the given account. :param str queue_name: The name of the queue to create. A queue name must be from 3 through 63 characters long and may only contain lowercase letters, numbers, and the dash (-) character. The first and last letters in the queue must be alphanumeric. The dash (-) character cannot be the first or last character. Consecutive dash characters are not permitted in the queue name. :param metadata: A dict containing name-value pairs to associate with the queue as metadata. Note that metadata names preserve the case with which they were created, but are case-insensitive when set or read. :type metadata: dict(str, str) :param bool fail_on_exist: Specifies whether to throw an exception if the queue already exists. :param int timeout: The server timeout, expressed in seconds. :return: A boolean indicating whether the queue was created. If fail_on_exist was set to True, this will throw instead of returning false. :rtype: bool ''' _validate_not_none('queue_name', queue_name) request = HTTPRequest() request.method = 'PUT' request.host_locations = self._get_host_locations() request.path = _get_path(queue_name) request.query = {'timeout': _int_to_str(timeout)} self._set_basic_headers(request) _add_metadata_headers(metadata, request) def _return_request(request): return request if not fail_on_exist: try: response = await self._perform_request(request, parser=_return_request) if response.status == _HTTP_RESPONSE_NO_CONTENT: return False return True except AzureHttpError as ex: _dont_fail_on_exist(ex) return False else: response = await self._perform_request(request, parser=_return_request) if response.status == _HTTP_RESPONSE_NO_CONTENT: raise AzureConflictHttpError( _ERROR_CONFLICT.format(response.message), response.status) return True
async def peek_messages(self, queue_name, num_messages=None, timeout=None): ''' Retrieves one or more messages from the front of the queue, but does not alter the visibility of the message. Only messages that are visible may be retrieved. When a message is retrieved for the first time with a call to get_messages, its dequeue_count property is set to 1. If it is not deleted and is subsequently retrieved again, the dequeue_count property is incremented. The client may use this value to determine how many times a message has been retrieved. Note that a call to peek_messages does not increment the value of DequeueCount, but returns this value for the client to read. If the key-encryption-key or resolver field is set on the local service object, the messages will be decrypted before being returned. :param str queue_name: The name of the queue to peek messages from. :param int num_messages: A nonzero integer value that specifies the number of messages to peek from the queue, up to a maximum of 32. By default, a single message is peeked from the queue with this operation. :param int timeout: The server timeout, expressed in seconds. :return: A list of :class:`~azure.azure_async.queue.models.QueueMessage` objects. Note that time_next_visible and pop_receipt will not be populated as peek does not pop the message and can only retrieve already visible messages. :rtype: list(:class:`~azure.azure_async.queue.models.QueueMessage`) ''' _validate_decryption_required(self.require_encryption, self.key_encryption_key, self.key_resolver_function) _validate_not_none('queue_name', queue_name) request = HTTPRequest() request.method = 'GET' request.host_locations = self._get_host_locations(secondary=True) request.path = _get_path(queue_name, True) request.query = { 'peekonly': 'true', 'numofmessages': _to_str(num_messages), 'timeout': _int_to_str(timeout) } return await self._perform_request(request, _convert_xml_to_queue_messages, [self.decode_function, self.require_encryption, self.key_encryption_key, self.key_resolver_function])
async def get_messages(self, queue_name, num_messages=None, visibility_timeout=None, timeout=None): ''' Retrieves one or more messages from the front of the queue. When a message is retrieved from the queue, the response includes the message content and a pop_receipt value, which is required to delete the message. The message is not automatically deleted from the queue, but after it has been retrieved, it is not visible to other clients for the time interval specified by the visibility_timeout parameter. If the key-encryption-key or resolver field is set on the local service object, the messages will be decrypted before being returned. :param str queue_name: The name of the queue to get messages from. :param int num_messages: A nonzero integer value that specifies the number of messages to retrieve from the queue, up to a maximum of 32. If fewer are visible, the visible messages are returned. By default, a single message is retrieved from the queue with this operation. :param int visibility_timeout: Specifies the new visibility timeout value, in seconds, relative to server time. The new value must be larger than or equal to 1 second, and cannot be larger than 7 days. The visibility timeout of a message can be set to a value later than the expiry time. :param int timeout: The server timeout, expressed in seconds. :return: A :class:`~azure.azure_async.queue.models.QueueMessage` object representing the information passed. :rtype: list(:class:`~azure.azure_async.queue.models.QueueMessage`) ''' _validate_decryption_required(self.require_encryption, self.key_encryption_key, self.key_resolver_function) _validate_not_none('queue_name', queue_name) request = HTTPRequest() request.method = 'GET' request.host_locations = self._get_host_locations() request.path = _get_path(queue_name, True) request.query = { 'numofmessages': _to_str(num_messages), 'visibilitytimeout': _to_str(visibility_timeout), 'timeout': _int_to_str(timeout) } return await self._perform_request(request, _convert_xml_to_queue_messages, [self.decode_function, self.require_encryption, self.key_encryption_key, self.key_resolver_function])
async def clear_messages(self, queue_name, timeout=None): ''' Deletes all messages from the specified queue. :param str queue_name: The name of the queue whose messages to clear. :param int timeout: The server timeout, expressed in seconds. ''' _validate_not_none('queue_name', queue_name) request = HTTPRequest() request.method = 'DELETE' request.host_locations = self._get_host_locations() self._set_basic_headers(request) request.path = _get_path(queue_name, True) request.query = {'timeout': _int_to_str(timeout)} await self._perform_request(request)
async def get_queue_service_properties(self, timeout=None): ''' Gets the properties of a azure_async account's Queue service, including logging, analytics and CORS rules. :param int timeout: The server timeout, expressed in seconds. :return: The queue service properties. :rtype: :class:`~azure.azure_async.common.models.ServiceProperties` ''' request = HTTPRequest() request.method = 'GET' request.host_locations = self._get_host_locations(secondary=True) request.path = _get_path() request.query = { 'restype': 'service', 'comp': 'properties', 'timeout': _int_to_str(timeout), } return await self._perform_request(request, _convert_xml_to_service_properties)
async def delete_queue(self, queue_name, fail_not_exist=False, timeout=None): ''' Deletes the specified queue and any messages it contains. When a queue is successfully deleted, it is immediately marked for deletion and is no longer accessible to clients. The queue is later removed from the Queue service during garbage collection. Note that deleting a queue is likely to take at least 40 seconds to complete. If an operation is attempted against the queue while it was being deleted, an :class:`AzureConflictHttpError` will be thrown. :param str queue_name: The name of the queue to delete. :param bool fail_not_exist: Specifies whether to throw an exception if the queue doesn't exist. :param int timeout: The server timeout, expressed in seconds. :return: A boolean indicating whether the queue was deleted. If fail_not_exist was set to True, this will throw instead of returning false. :rtype: bool ''' _validate_not_none('queue_name', queue_name) request = HTTPRequest() request.method = 'DELETE' request.host_locations = self._get_host_locations() request.path = _get_path(queue_name) request.query = {'timeout': _int_to_str(timeout)} self._set_basic_headers(request) if not fail_not_exist: try: await self._perform_request(request) return True except AzureHttpError as ex: _dont_fail_not_exist(ex) return False else: await self._perform_request(request) return True
async def _list_queues(self, prefix=None, marker=None, max_results=None, include=None, timeout=None, _context=None): ''' Returns a list of queues under the specified account. Makes a single list request to the service. Used internally by the list_queues method. :param str prefix: Filters the results to return only queues with names that begin with the specified prefix. :param str marker: A token which identifies the portion of the query to be returned with the next query operation. The operation returns a next_marker element within the response body if the list returned was not complete. This value may then be used as a query parameter in a subsequent call to request the next portion of the list of queues. The marker value is opaque to the client. :param int max_results: The maximum number of queues to return. A single list request may return up to 1000 queues and potentially a continuation token which should be followed to get additional resutls. :param str include: Include this parameter to specify that the container's metadata be returned as part of the response body. :param int timeout: The server timeout, expressed in seconds. ''' request = HTTPRequest() request.method = 'GET' request.host_locations = self._get_host_locations(secondary=True) request.path = _get_path() request.query = { 'comp': 'list', 'prefix': _to_str(prefix), 'marker': _to_str(marker), 'maxresults': _int_to_str(max_results), 'include': _to_str(include), 'timeout': _int_to_str(timeout) } return await self._perform_request(request, _convert_xml_to_queues, operation_context=_context)
async def set_queue_acl(self, queue_name, signed_identifiers=None, timeout=None): ''' Sets stored access policies for the queue that may be used with Shared Access Signatures. When you set permissions for a queue, the existing permissions are replaced. To update the queue's permissions, call :func:`~get_queue_acl` to fetch all access policies associated with the queue, modify the access policy that you wish to change, and then call this function with the complete set of data to perform the update. When you establish a stored access policy on a queue, it may take up to 30 seconds to take effect. During this interval, a shared access signature that is associated with the stored access policy will throw an :class:`AzureHttpError` until the access policy becomes active. :param str queue_name: The name of an existing queue. :param signed_identifiers: A dictionary of access policies to associate with the queue. The dictionary may contain up to 5 elements. An empty dictionary will clear the access policies set on the service. :type signed_identifiers: dict(str, :class:`~azure.azure_async.common.models.AccessPolicy`) :param int timeout: The server timeout, expressed in seconds. ''' _validate_not_none('queue_name', queue_name) _validate_access_policies(signed_identifiers) request = HTTPRequest() request.method = 'PUT' request.host_locations = self._get_host_locations() request.path = _get_path(queue_name) self._set_basic_headers(request) request.query = { 'comp': 'acl', 'timeout': _int_to_str(timeout), } request.body = _get_request_body( _convert_signed_identifiers_to_xml(signed_identifiers)) await self._perform_request(request)
async def set_queue_service_properties(self, logging=None, hour_metrics=None, minute_metrics=None, cors=None, timeout=None): ''' Sets the properties of a azure_async account's Queue service, including Azure Storage Analytics. If an element (ex Logging) is left as None, the existing settings on the service for that functionality are preserved. For more information on Azure Storage Analytics, see https://msdn.microsoft.com/en-us/library/azure/hh343270.aspx. :param Logging logging: The logging settings provide request logs. :param Metrics hour_metrics: The hour metrics settings provide a summary of request statistics grouped by API in hourly aggregates for queuess. :param Metrics minute_metrics: The minute metrics settings provide request statistics for each minute for queues. :param cors: You can include up to five CorsRule elements in the list. If an empty list is specified, all CORS rules will be deleted, and CORS will be disabled for the service. For detailed information about CORS rules and evaluation logic, see https://msdn.microsoft.com/en-us/library/azure/dn535601.aspx. :type cors: list(:class:`~azure.azure_async.common.models.CorsRule`) :param int timeout: The server timeout, expressed in seconds. ''' request = HTTPRequest() request.method = 'PUT' request.host_locations = self._get_host_locations() request.path = _get_path() request.query = { 'restype': 'service', 'comp': 'properties', 'timeout': _int_to_str(timeout), } request.body = _get_request_body( _convert_service_properties_to_xml(logging, hour_metrics, minute_metrics, cors)) await self._perform_request(request)
async def get_queue_acl(self, queue_name, timeout=None): ''' Returns details about any stored access policies specified on the queue that may be used with Shared Access Signatures. :param str queue_name: The name of an existing queue. :param int timeout: The server timeout, expressed in seconds. :return: A dictionary of access policies associated with the queue. :rtype: dict(str, :class:`~azure.azure_async.common.models.AccessPolicy`) ''' _validate_not_none('queue_name', queue_name) request = HTTPRequest() request.method = 'GET' request.host_locations = self._get_host_locations(secondary=True) request.path = _get_path(queue_name) request.query = { 'comp': 'acl', 'timeout': _int_to_str(timeout), } return await self._perform_request(request, _convert_xml_to_signed_identifiers)
async def delete_message(self, queue_name, message_id, pop_receipt, timeout=None): ''' Deletes the specified message. Normally after a client retrieves a message with the get_messages operation, the client is expected to process and delete the message. To delete the message, you must have two items of data: id and pop_receipt. The id is returned from the previous get_messages operation. The pop_receipt is returned from the most recent :func:`~get_messages` or :func:`~update_message` operation. In order for the delete_message operation to succeed, the pop_receipt specified on the request must match the pop_receipt returned from the :func:`~get_messages` or :func:`~update_message` operation. :param str queue_name: The name of the queue from which to delete the message. :param str message_id: The message id identifying the message to delete. :param str pop_receipt: A valid pop receipt value returned from an earlier call to the :func:`~get_messages` or :func:`~update_message`. :param int timeout: The server timeout, expressed in seconds. ''' _validate_not_none('queue_name', queue_name) _validate_not_none('message_id', message_id) _validate_not_none('pop_receipt', pop_receipt) request = HTTPRequest() request.method = 'DELETE' request.host_locations = self._get_host_locations() request.path = _get_path(queue_name, True, message_id) self._set_basic_headers(request) request.query = { 'popreceipt': _to_str(pop_receipt), 'timeout': _int_to_str(timeout) } await self._perform_request(request)
async def append_block(self, container_name, blob_name, block, validate_content=False, maxsize_condition=None, appendpos_condition=None, lease_id=None, if_modified_since=None, if_unmodified_since=None, if_match=None, if_none_match=None, timeout=None): ''' Commits a new block of data to the end of an existing append blob. :param str container_name: Name of existing container. :param str blob_name: Name of existing blob. :param bytes block: Content of the block in bytes. :param bool validate_content: If true, calculates an MD5 hash of the block content. The azure_async service checks the hash of the content that has arrived with the hash that was sent. This is primarily valuable for detecting bitflips on the wire if using http instead of https as https (the default) will already validate. Note that this MD5 hash is not stored with the blob. :param int maxsize_condition: Optional conditional header. The max length in bytes permitted for the append blob. If the Append Block operation would cause the blob to exceed that limit or if the blob size is already greater than the value specified in this header, the request will fail with MaxBlobSizeConditionNotMet error (HTTP status code 412 - Precondition Failed). :param int appendpos_condition: Optional conditional header, used only for the Append Block operation. A number indicating the byte offset to compare. Append Block will succeed only if the append position is equal to this number. If it is not, the request will fail with the AppendPositionConditionNotMet error (HTTP status code 412 - Precondition Failed). :param str lease_id: Required if the blob has an active lease. :param datetime if_modified_since: A DateTime value. Azure expects the date value passed in to be UTC. If timezone is included, any non-UTC datetimes will be converted to UTC. If a date is passed in without timezone info, it is assumed to be UTC. Specify this header to perform the operation only if the resource has been modified since the specified time. :param datetime if_unmodified_since: A DateTime value. Azure expects the date value passed in to be UTC. If timezone is included, any non-UTC datetimes will be converted to UTC. If a date is passed in without timezone info, it is assumed to be UTC. Specify this header to perform the operation only if the resource has not been modified since the specified date/time. :param str if_match: An ETag value, or the wildcard character (*). Specify this header to perform the operation only if the resource's ETag matches the value specified. :param str if_none_match: An ETag value, or the wildcard character (*). Specify this header to perform the operation only if the resource's ETag does not match the value specified. Specify the wildcard character (*) to perform the operation only if the resource does not exist, and fail the operation if it does exist. :param int timeout: The timeout parameter is expressed in seconds. :return: ETag, last modified, append offset, and committed block count properties for the updated Append Blob :rtype: :class:`~azure.azure_async.blob.models.AppendBlockProperties` ''' _validate_not_none('container_name', container_name) _validate_not_none('blob_name', blob_name) _validate_not_none('block', block) _validate_encryption_unsupported(self.require_encryption, self.key_encryption_key) request = HTTPRequest() request.method = 'PUT' request.host_locations = self._get_host_locations() request.path = _get_path(container_name, blob_name) request.query = { 'comp': 'appendblock', 'timeout': _int_to_str(timeout), } request.headers = { 'Accept': '*/*', 'Accept-Encoding': 'gzip, deflate', 'Host': f'{self.account_name}.blob.core.windows.net', 'Content-Type': 'application/octet-stream', 'x-ms-blob-condition-maxsize': _to_str(maxsize_condition), 'x-ms-blob-condition-appendpos': _to_str(appendpos_condition), 'x-ms-lease-id': _to_str(lease_id), 'If-Modified-Since': _datetime_to_utc_string(if_modified_since), 'If-Unmodified-Since': _datetime_to_utc_string(if_unmodified_since), 'If-Match': _to_str(if_match), 'If-None-Match': _to_str(if_none_match) } request.body = _get_data_bytes_only('block', block) if validate_content: computed_md5 = _get_content_md5(request.body) request.headers['Content-MD5'] = _to_str(computed_md5) return await self._perform_request(request, _parse_append_block)
async def create_blob(self, container_name, blob_name, content_settings=None, metadata=None, lease_id=None, if_modified_since=None, if_unmodified_since=None, if_match=None, if_none_match=None, timeout=None): ''' Creates a blob or overrides an existing blob. Use if_match=* to prevent overriding an existing blob. See create_blob_from_* for high level functions that handle the creation and upload of large blobs with automatic chunking and progress notifications. :param str container_name: Name of existing container. :param str blob_name: Name of blob to create or update. :param ~azure.azure_async.blob.models.ContentSettings content_settings: ContentSettings object used to set blob properties. :param metadata: Name-value pairs associated with the blob as metadata. :type metadata: dict(str, str) :param str lease_id: Required if the blob has an active lease. :param datetime if_modified_since: A DateTime value. Azure expects the date value passed in to be UTC. If timezone is included, any non-UTC datetimes will be converted to UTC. If a date is passed in without timezone info, it is assumed to be UTC. Specify this header to perform the operation only if the resource has been modified since the specified time. :param datetime if_unmodified_since: A DateTime value. Azure expects the date value passed in to be UTC. If timezone is included, any non-UTC datetimes will be converted to UTC. If a date is passed in without timezone info, it is assumed to be UTC. Specify this header to perform the operation only if the resource has not been modified since the specified date/time. :param str if_match: An ETag value, or the wildcard character (*). Specify this header to perform the operation only if the resource's ETag matches the value specified. :param str if_none_match: An ETag value, or the wildcard character (*). Specify this header to perform the operation only if the resource's ETag does not match the value specified. Specify the wildcard character (*) to perform the operation only if the resource does not exist, and fail the operation if it does exist. :param int timeout: The timeout parameter is expressed in seconds. :return: ETag and last modified properties for the updated Append Blob :rtype: :class:`~azure.azure_async.blob.models.ResourceProperties` ''' _validate_not_none('container_name', container_name) _validate_not_none('blob_name', blob_name) _validate_encryption_unsupported(self.require_encryption, self.key_encryption_key) request = HTTPRequest() request.method = 'PUT' request.host_locations = self._get_host_locations() request.path = _get_path(container_name, blob_name) request.query = {'timeout': _int_to_str(timeout)} request.headers = { 'Accept': '*/*', 'Accept-Encoding': 'gzip, deflate', 'Host': f'{self.account_name}.blob.core.windows.net', 'Content-Type': 'application/octet-stream', 'x-ms-blob-type': _to_str(self.blob_type), 'x-ms-lease-id': _to_str(lease_id), 'If-Modified-Since': _datetime_to_utc_string(if_modified_since), 'If-Unmodified-Since': _datetime_to_utc_string(if_unmodified_since), 'If-Match': _to_str(if_match), 'If-None-Match': _to_str(if_none_match) } _add_metadata_headers(metadata, request) if content_settings is not None: request.headers.update(content_settings._to_headers()) return await self._perform_request(request, _parse_base_properties)
async def update_message(self, queue_name, message_id, pop_receipt, visibility_timeout, content=None, timeout=None): ''' Updates the visibility timeout of a message. You can also use this operation to update the contents of a message. This operation can be used to continually extend the invisibility of a queue message. This functionality can be useful if you want a worker role to "lease" a queue message. For example, if a worker role calls get_messages and recognizes that it needs more time to process a message, it can continually extend the message's invisibility until it is processed. If the worker role were to fail during processing, eventually the message would become visible again and another worker role could process it. If the key-encryption-key field is set on the local service object, this method will encrypt the content before uploading. :param str queue_name: The name of the queue containing the message to update. :param str message_id: The message id identifying the message to update. :param str pop_receipt: A valid pop receipt value returned from an earlier call to the :func:`~get_messages` or :func:`~update_message` operation. :param int visibility_timeout: Specifies the new visibility timeout value, in seconds, relative to server time. The new value must be larger than or equal to 0, and cannot be larger than 7 days. The visibility timeout of a message cannot be set to a value later than the expiry time. A message can be updated until it has been deleted or has expired. :param obj content: Message content. Allowed type is determined by the encode_function set on the service. Default is str. :param int timeout: The server timeout, expressed in seconds. :return: A list of :class:`~azure.azure_async.queue.models.QueueMessage` objects. For convenience, this object is also populated with the content, although it is not returned by the service. :rtype: list(:class:`~azure.azure_async.queue.models.QueueMessage`) ''' _validate_encryption_required(self.require_encryption, self.key_encryption_key) _validate_not_none('queue_name', queue_name) _validate_not_none('message_id', message_id) _validate_not_none('pop_receipt', pop_receipt) _validate_not_none('visibility_timeout', visibility_timeout) request = HTTPRequest() request.method = 'PUT' request.host_locations = self._get_host_locations() self._set_basic_headers(request) request.path = _get_path(queue_name, True, message_id) request.query = { 'popreceipt': _to_str(pop_receipt), 'visibilitytimeout': _int_to_str(visibility_timeout), 'timeout': _int_to_str(timeout) } if content is not None: request.body = _get_request_body(_convert_queue_message_xml(content, self.encode_function, self.key_encryption_key)) return await self._perform_request(request, _parse_queue_message_from_headers)
async def put_message(self, queue_name, content, visibility_timeout=None, time_to_live=None, timeout=None): ''' Adds a new message to the back of the message queue. The visibility timeout specifies the time that the message will be invisible. After the timeout expires, the message will become visible. If a visibility timeout is not specified, the default value of 0 is used. The message time-to-live specifies how long a message will remain in the queue. The message will be deleted from the queue when the time-to-live period expires. If the key-encryption-key field is set on the local service object, this method will encrypt the content before uploading. :param str queue_name: The name of the queue to put the message into. :param obj content: Message content. Allowed type is determined by the encode_function set on the service. Default is str. The encoded message can be up to 64KB in size. :param int visibility_timeout: If not specified, the default value is 0. Specifies the new visibility timeout value, in seconds, relative to server time. The value must be larger than or equal to 0, and cannot be larger than 7 days. The visibility timeout of a message cannot be set to a value later than the expiry time. visibility_timeout should be set to a value smaller than the time-to-live value. :param int time_to_live: Specifies the time-to-live interval for the message, in seconds. The maximum time-to-live allowed is 7 days. If this parameter is omitted, the default time-to-live is 7 days. :param int timeout: The server timeout, expressed in seconds. :return: A :class:`~azure.azure_async.queue.models.QueueMessage` object. This object is also populated with the content although it is not returned from the service. :rtype: :class:`~azure.azure_async.queue.models.QueueMessage` ''' _validate_encryption_required(self.require_encryption, self.key_encryption_key) _validate_not_none('queue_name', queue_name) _validate_not_none('content', content) request = HTTPRequest() request.method = 'POST' request.host_locations = self._get_host_locations() request.path = _get_path(queue_name, True) self._set_basic_headers(request) request.query = { 'visibilitytimeout': _to_str(visibility_timeout), 'messagettl': _to_str(time_to_live), 'timeout': _int_to_str(timeout) } request.body = _get_request_body(_convert_queue_message_xml(content, self.encode_function, self.key_encryption_key)) message_list = await self._perform_request(request, _convert_xml_to_queue_messages, [self.decode_function, False, None, None, content]) return message_list[0]