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Create, view, and manage Event Grid system topics using Azure CLI

This article shows you how to create and manage system topics using Azure CLI. For an overview of system topics, see System topics.

Install extension for Azure CLI

For Azure CLI, you need the Event Grid extension.

In Cloud Shell:

  • If you've installed the extension previously, update it: az extension update -n eventgrid
  • If you haven't installed the extension previously, install it: az extension add -n eventgrid

For a local installation:

  1. Install the Azure CLI. Make sure that you have the latest version, by checking with az --version.
  2. Uninstall previous versions of the extension: az extension remove -n eventgrid
  3. Install the eventgrid extension with az extension add -n eventgrid

Create a system topic

  • To create a system topic on an Azure source first and then create an event subscription for that topic, see the following reference topics:

    • az eventgrid system-topic create

      # Get the ID of the Azure source (for example: Azure Storage account)
      storageid=$(az storage account show \
              --name <AZURE STORAGE ACCOUNT NAME> \
              --resource-group <AZURE RESOURCE GROUP NAME> \
                  --query id --output tsv)
      
      # Create the system topic on the Azure source (example: Azure Storage account)
      az eventgrid system-topic create \
          -g <AZURE RESOURCE GROUP NAME> \
          --name <SPECIFY SYSTEM TOPIC NAME> \
          --location <LOCATION> \
          --topic-type microsoft.storage.storageaccounts \
          --source $storageid
      

      For a list of topic-type values that you can use to create a system topic, run the following command. These topic type values represent the event sources that support creation of system topics. Please ignore Microsoft.EventGrid.Topics and Microsoft.EventGrid.Domains from the list.

      az eventgrid topic-type  list --output json | grep -w id
      
    • az eventgrid system-topic event-subscription create

      az eventgrid system-topic event-subscription create --name <SPECIFY EVENT SUBSCRIPTION NAME> \
          -g rg1 --system-topic-name <SYSTEM TOPIC NAME> \
          --endpoint <ENDPOINT URL>		  
      
  • To create a system topic (implicitly) when creating an event subscription for an Azure source, use the az eventgrid event-subscription create method. Here's an example:

    storageid=$(az storage account show --name <AZURE STORAGE ACCOUNT NAME> --resource-group <AZURE RESOURCE GROUP NAME> --query id --output tsv)
    endpoint=<ENDPOINT URL>
    
    az eventgrid event-subscription create \
      --source-resource-id $storageid \
      --name <EVENT SUBSCRIPTION NAME> \
      --endpoint $endpoint
    

    For a tutorial with step-by-step instructions, see Subscribe to storage account.

View all system topics

To view all system topics and details of a selected system topic, use the following commands:

Delete a system topic

To delete a system topic, use the following command:

Next steps

See the System topics in Azure Event Grid section to learn more about system topics and topic types supported by Azure Event Grid.