Invoke Phoenix endpoint programmatically at runtime

Sort of answered my own question. I created a module as seen below that uses build_conn() to generate a basic conn struct and then passes it into the get() macro with the “/” route. When invoking it manually at runtime, the endpoint is hit successfully and the result is a conn mutated by the route logic.

defmodule TryConnTest do
    @endpoint TestControllerCallsWeb.Endpoint
    import Phoenix.ConnTest

    def go do
        build_conn()
        |> get("/")
    end
end

Presumably, I could manipulate the conn struct, adding HTTP headers, constructing a post body if necessary, etc… and invoke the Phoenix endpoints internally from an AMQP subscriber in the same application.

My question then becomes … is there a downside to doing this in production until we get round to refactoring the business logic so that it can be invoked from both AMQP and the Phoenix controllers?