We need a way to get an event for the routing template

[davidfowl]

Certain tools are looking to for ways to group request by route template (if there is any). We should send that via the HostingEventSource.

cc @shirhatti

[rynowak]

Can you explain more? Why is route template the right thing?

[davidfowl]

Moving this out of MVC and out of the backlog 😄 .

The idea is to launch a profiler and run test and bucket requests under the route template. (e.g. /api/todo/{id}). Think of this like trying to show all calls to a method (the template) and then having the ability to look at specific requests to dig too (ones with values from the actual URL).

[rynowak]

I think it's fine for us to include the route template in an event/log - but it's not the right thing because there's a lot more subtlety when you consider realistic apps. I'd suggest that we include the display name of the endpoint and use that as the key. We will have to do some work to make sure we're generating good display names.

[analogrelay]

How is this hosting? Isn't it Routing that would trigger the event?

[davidfowl]

I was thinking it would be triggered from the HostingEventSource but that's actually too early.

[rynowak]

it should be triggered in the endpoint invoker middleware