Dear rusted ones,
First of all this is my first time here, so apologies upfront if something
is wrong or off place.
I'm currently trying to build a Hyper based server.
My first step was to run the hello world tutorial. That worked
perfectly.
Then I've tried to build a 'Middleware' Service, that is, a Hyper Service
that wraps other Service. I've called it FooMiddleware, all it does it add
a 'Foo' reader to the response. It compiles fine.
Unfortunately when I try to wrap my initial hello world service, an error
happens.
Here's a link to the playground.
The error that happens is as follows:
error[E0277]: the trait bound
FooMiddleware<hyper::service::service::ServiceFnOk<fn(hyper::Request<hyper::Body>) -> hyper::Response<hyper::Body> {hello_world}, hyper::Body>>: futures::Future
is not satisfied
I can't understand what it means. service_fn_ok
returns a Service, doesn't it?
Thank you for your help! Loving the language.