Library name

Microsoft.Azure.WebJobs.Extensions.EventHubs

Please describe the feature.

The current implementation of Custom Endpoint allows its value to be set only once in the host.json file.

This limitation becomes problematic when attempting to connect to multiple Event Hub Namespaces from a single Azure Function App.

For example, if using an application gateway in front of your Event Hubs, you’ll need to add a listener for each Event Hub Namespace you want to support via AMQPS. Consequently, if you have an Azure Function with a trigger from one namespace and a binding to another, there is no way to configure it correctly.

We should be able to set the custom endpoint in the triggers and bindings, or in a map inside the host.json file.