Multiple Azure functions ?

[Sbou]

hello,

I have 4 azure functions in the same project, so they share the same host.
I wanted to use dependency injection to manage services but I realize that when you specify singleton then the instance is shared between all Azure functions.

Is there a level of isolation that would allow to have a singleton by Azure function without being forced to use the "scoped" level that is by invocation?

Thank you,