Add health check for Azure.Messaging.EventGrid #2437
Description
What would you like to be added:
Similar to Azure.Messaging.EventHubs, provide a way to check the health of Azure.Messaging.EventGrid.
Why is this needed:
To be able to validate connectivity that the event grid is healthy in a lightweight and fast manner. Currently, the only way to comprehensively achieve the same behavior is with a manual HTTP endpoint check or sending a test event.