### Route parameters
**Route parameters** are variable parts of a route path. They can be used to path
- arguments within the URI.\13
+ arguments within the URI.
Parameters in a route are prefixed with a colon `:` like in `:userId`, `:year`.
The following example declares a handler `UserHome` that responds with the `user`
## Sessions
-**Sessions** can be used thanks to the built-in `SessionMiddleware`.
+**Sessions** can be used thanks to the built-in `SessionInit` middleware.
Here a simple example of login button that define a value in the `req` session.
end
var app = new App
-app.use("/*", new SessionInit)
+app.use_before("/*", new SessionInit)
app.use("/", new AppLogin)
app.listen("localhost", 3000)
~~~