Microsoft Azure Service Bus Client Library for Python
Project description
Microsoft Azure SDK for Python
This is the Microsoft Azure Service Bus Runtime Client Library.
This package has been tested with Python 2.7, 3.3, 3.4 and 3.5.
For a more complete set of Azure libraries, see the azure bundle package.
Compatibility
IMPORTANT: If you have an earlier version of the azure package (version < 1.0), you should uninstall it before installing this package.
You can check the version using pip:
pip freezeIf you see azure==0.11.0 (or any version below 1.0), uninstall it first:
pip uninstall azureFeatures
Queues: create, list and delete queues; create, list, and delete subscriptions; send, receive, unlock and delete messages
Topics: create, list, and delete topics; create, list, and delete rules
Event Hubs: create and delete event hubs; send events
Installation
Download Package
To install via the Python Package Index (PyPI), type:
pip install azure-servicebusDownload Source Code
To get the source code of the SDK via git type:
git clone https://github.com/Azure/azure-sdk-for-python.git
cd azure-sdk-for-python
cd azure-servicebus
python setup.py installUsage
ServiceBus Queues
ServiceBus Queues are an alternative to Storage Queues that might be useful in scenarios where more advanced messaging features are needed (larger message sizes, message ordering, single-operation destructive reads, scheduled delivery) using push-style delivery (using long polling).
The service can use Shared Access Signature authentication, or ACS authentication.
Service bus namespaces created using the Azure portal after August 2014 no longer support ACS authentication. You can create ACS compatible namespaces with the Azure SDK.
ACS Authentication
To use ACS authentication, create the service bus service with:
from azure.servicebus import ServiceBusService
account_key = '' # DEFAULT KEY from Azure portal
issuer = 'owner' # DEFAULT ISSUER from Azure portal
sbs = ServiceBusService(service_namespace,
account_key=account_key,
issuer=issuer)Sending and Receiving Messages
The create_queue method can be used to ensure a queue exists:
sbs.create_queue('taskqueue')The send_queue_message method can then be called to insert the message into the queue:
from azure.servicebus import Message
msg = Message('Hello World!')
sbs.send_queue_message('taskqueue', msg)It is then possible to call the receive_queue_message method to dequeue the message.
msg = sbs.receive_queue_message('taskqueue')ServiceBus Topics
ServiceBus topics are an abstraction on top of ServiceBus Queues that make pub/sub scenarios easy to implement.
The create_topic method can be used to create a server-side topic:
sbs.create_topic('taskdiscussion')The send_topic_message method can be used to send a message to a topic:
from azure.servicebus import Message
msg = Message('Hello World!')
sbs.send_topic_message('taskdiscussion', msg)A client can then create a subscription and start consuming messages by calling the create_subscription method followed by the receive_subscription_message method. Please note that any messages sent before the subscription is created will not be received.
from azure.servicebus import Message
sbs.create_subscription('taskdiscussion', 'client1')
msg = Message('Hello World!')
sbs.send_topic_message('taskdiscussion', msg)
msg = sbs.receive_subscription_message('taskdiscussion', 'client1')Event Hub
Event Hubs enable the collection of event streams at high throughput, from a diverse set of devices and services.
The create_event_hub method can be used to create an event hub:
sbs.create_event_hub('myhub')To send an event:
sbs.send_event('myhub', '{ "DeviceId":"dev-01", "Temperature":"37.0" }')The event content is the event message or JSON-encoded string that contains multiple messages.
Need Help?
Be sure to check out the Microsoft Azure Developer Forums on Stack Overflow if you have trouble with the provided code.
Contribute Code or Provide Feedback
If you would like to become an active contributor to this project please follow the instructions provided in Microsoft Azure Projects Contribution Guidelines.
If you encounter any bugs with the library please file an issue in the Issues section of the project.
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