I have an event grid domain topic subscription. It has advanced filters set. I am using a powershell to get that event subscription and read the advanced filters, but I get no advanced filter properties at all. I can query the subject filter starts with and ends with properties, but I cannot get my advanced filter values. I used Get-AzEventGridDomainTopicEventSubscription to get event subscription object. Check this screen shot:

has anyone come acrosss this? how can i query the advanced filters property?

Get-AzEventGridDomainTopicEventSubscription
   -DomainName <String>
   -ResourceGroupName <String>
   [-SubscriptionId <String[]>]
   -TopicName <String>
   [-Filter <String>]
   [-Top <Int32>]
   [-DefaultProfile <PSObject>]
   [-PassThru]
   [<CommonParameters>]

I have an event grid domain topic subscription. It has advanced filters set. I am using a powershell to get that event subscription and read the advanced filters, but I get no advanced filter properties at all. I can query the subject filter starts with and ends with properties, but I cannot get my advanced filter values. I used Get-AzEventGridDomainTopicEventSubscription to get event subscription object. Check this screen shot:

has anyone come acrosss this? how can i query the advanced filters property?

Get-AzEventGridDomainTopicEventSubscription
   -DomainName <String>
   -ResourceGroupName <String>
   [-SubscriptionId <String[]>]
   -TopicName <String>
   [-Filter <String>]
   [-Top <Int32>]
   [-DefaultProfile <PSObject>]
   [-PassThru]
   [<CommonParameters>]

• azure-eventgrid

• 1 az eventgrid system-topic event-subscription list \ --system-topic-name ravi \ -g sampathp \ --query "[].filter.advancedFilters" – Sampath Commented Mar 10 at 13:48
• Thanks @Sampath. this query does work. – Azure Dev Commented Mar 10 at 14:33

1 Answer 1

When using Get-AzEventGridDomainTopicEventSubscription, the output does not include an AdvancedFilters property. However, to list Event Grid system topic event subscriptions in a given resource group, you can use the following Azure CLI command:

az eventgrid system-topic event-subscription list \
    --system-topic-name ravi \
    -g sampathp

To retrieve and display only the advancedFilters properties from the JSON output of the az eventgrid system-topic event-subscription list command, use the --query parameter in Azure CLI:

az eventgrid system-topic event-subscription list \
    --system-topic-name ravi \
    -g sampathp \
    --query "[].filter.advancedFilters"

with custom events Refer to this MSDOC for guidance on handling custom events with Event Grid and Azure CLI.

To check which subscriptions exist for a specific Event Grid custom topic, use the following command:

az eventgrid event-subscription list --source-resource-id /subscriptions/<subscription-id>/resourceGroups/<resource-group>/providers/Microsoft.EventGrid/topics/<topic-name> --output table

To retrieve subscription filters in a custom Event Grid Topic using Azure CLI, you must explicitly query the filter.advancedFilters property. Use the following commands:

topicresourceid=$(az eventgrid topic show --resource-group sampathp --name $topicname --query "id" --output tsv)

az eventgrid event-subscription list \
    --source-resource-id $topicresourceid \
    --query "[].{Name:name, AdvancedFilters:filter.advancedFilters}" \
    --output json