Event Grid libraries for Python

Azure Event Grid is a fully-managed intelligent event routing service that allows for uniform event consumption using a publish-subscribe model.

Learn more about Azure Event Grid and get started with the Azure Blob storage event tutorial.

Publish SDK

Authenticate, create, handle, and publish events to topics using the Azure Event Grid publish SDK.

Installation

Install the package with pip:

pip install azure-eventgrid

Example

The following code publishes an event to a topic. You can retrieve the topic key and endpoint through the Azure Portal or through the Azure CLI:

endpoint=$(az eventgrid topic show --name <topic_name> -g gridResourceGroup --query "endpoint" --output tsv)
key=$(az eventgrid topic key list --name <topic_name> -g gridResourceGroup --query "key1" --output tsv)
from datetime import datetime
from azure.eventgrid import EventGridClient
from msrest.authentication import TopicCredentials

def publish_event(self):

        credentials = TopicCredentials(
            self.settings.EVENT_GRID_KEY
        )
        event_grid_client = EventGridClient(credentials)
        event_grid_client.publish_events(
            "your-endpoint-here",
            events=[{
                'id' : "dbf93d79-3859-4cac-8055-51e3b6b54bea",
                'subject' : "Sample subject",
                'data': {
                    'key': 'Sample Data'
                },
                'event_type': 'SampleEventType',
                'event_time': datetime(2018, 5, 2),
                'data_version': 1
            }]
        )

Management SDK

Create, update, or delete Event Grid instances, topics, and subscriptions with the management SDK.

Installation

Install the package with pip:

pip install azure-mgmt-eventgrid

Example

The following creates a custom topic and subscribes an endpoint to the topic. The code then sends an event to the topic through HTTPS. RequestBin is an open source, third-party tool that enables you to create an endpoint, and view requests that are sent to it. Go to RequestBin, and click Create a RequestBin. Copy the bin URL, because you need it when subscribing to the topic.

from azure.mgmt.resource import ResourceManagementClient
from azure.mgmt.eventgrid import EventGridManagementClient
import requests

RESOURCE_GROUP_NAME = 'gridResourceGroup'
TOPIC_NAME = 'gridTopic1234'
LOCATION = 'westus2'
SUBSCRIPTION_ID = 'YOUR_SUBSCRIPTION_ID'
SUBSCRIPTION_NAME = 'gridSubscription'
REQUEST_BIN_URL = 'YOUR_REQUEST_BIN_URL'

# create resource group
resource_client = ResourceManagementClient(credentials, SUBSCRIPTION_ID)
resource_client.resource_groups.create_or_update(
    RESOURCE_GROUP_NAME,
    {
        'location': LOCATION
    }
)

event_client = EventGridManagementClient(credentials, SUBSCRIPTION_ID)

# create a custom topic
event_client.topics.create_or_update(RESOURCE_GROUP_NAME, TOPIC_NAME, LOCATION)

# subscribe to a topic
scope = '/subscriptions/'+SUBSCRIPTION_ID+'/resourceGroups/'+RESOURCE_GROUP_NAME+'/providers/Microsoft.EventGrid/topics/'+TOPIC_NAME
event_client.event_subscriptions.create(scope, SUBSCRIPTION_NAME,
    {
        'destination': {
            'endpoint_url': REQUEST_BIN_URL
        }
    }
)

# send an event to topic
# get endpoint url
url = event_client.event_subscriptions.get_full_url(scope, SUBSCRIPTION_NAME).endpoint_url
# get key
key = event_client.topics.list_shared_access_keys(RESOURCE_GROUP_NAME,TOPIC_NAME).key1
headers = {'aeg-sas-key': key}
s = requests.get('https://raw.githubusercontent.com/Azure/azure-docs-json-samples/master/event-grid/customevent.json')
r = requests.post(url, data=s, headers=headers)
print(r.status_code)
print(r.content)

Browse to the RequestBin URL created earlier to see the event just sent.

Clean up resources

az group delete --name gridResourceGroup

Learn more

Receive events using the Event Grid SDK