azureeventgridsendevent

Azure Event Grid send event Python example

This folder contains a Python application example that handles Event Grids on Microsoft Azure.

It handles an Event Grid and sends events to an Event Grid Topic.

Requirements

• You must have a Microsoft Azure subscription.

• You must have the following installed:

  • Python 3
  • Azure CLI

• The code was written for:

  • Python 3
  • Azure SDK for Python: New Client Libraries (Azure Event Grid library v4)

• You install individual Azure library packages on a per-project basis depending on your needs. It is recommended using Python virtual environments for each project. There is no standalone "SDK" installer for Python.

• Install the specified python packages.

  pip install -r requirements.txt

Using the code

• Sign in Azure (Interactively).

  The Azure CLI's default authentication method for logins uses a web browser and access token to sign in.

  1. Run the Azure CLI login command.

     az login

     If the CLI can open your default browser, it will do so and load an Azure sign-in page.

     Otherwise, open a browser page at https://aka.ms/devicelogin and enter the authorization code displayed in your terminal.

     If no web browser is available or the web browser fails to open, use device code flow with az login --use-device-code.

  2. Sign in with your account credentials in the browser.

  Make sure you select your subscription by:

  az account set --subscription <name or id>

• Create an Event Grid Topic.

  An Event Grid topic provides a user-defined endpoint that you post your events to.

  You must create the Event Grid Topic, using the Azure console, do the following actions:

  1. Select Create a resource and chose Event Grid Topic.

  2. On the Event Grid Topics page, select Create.

  3. Choose the Subscription, Resource group, Name and Region for your Event Grid Topic.

  4. Select Create.

  You need the Topic Key and the Topic Endpoint. You can find these within the Event Grid Topic resource on the Azure portal.

• Configure your application.

  We store the configuration information in a config file (app.cfg). The file content is:

  [Configuration]
  EventGridTopicKey=<EVENT_GRID_TOPIC_KEY>
  EventGridTopicEndpoint=<EVENT_GRID_TOPIC_ENDPOINT>

  You only need to edit the file app.cfg and replace the values of:

  • <EVENT_GRID_TOPIC_KEY> by the key of the Event Grid Topic.

  • <EVENT_GRID_TOPIC_ENDPOINT> by the topic endpoint in the Event Grid.

    You can find the topic endpoint within the Event Grid Topic resource on the Azure portal.

    https://<EVENT_GRID_TOPIC_NAME>.<REGION_NAME>.eventgrid.azure.net/api/events

  The application uses this information for accessing your Event Grid Topic.

• Run the code.

  Execute the sender application:

  python sendereg.py

  You should see the next message:

  Sending event to Event Grid Topic ...
  Sent

• Test the application.

  The event should be in the Event Grid Topic.