add a readme

README.md

@@ -0,0 +1,33 @@
+# Sessions for Rocket.rs
+
+Adding cookie-based sessions to a rocket application is extremely simple:
+
+```rust
+#![feature(proc_macro_hygiene, decl_macro)]
+#[macro_use] extern crate rocket;
+
+use rocket_session::Session;
+use std::time::Duration;
+
+fn main() {
+    rocket::ignite()
+        .attach(Session::fairing(Duration::from_secs(3600)))
+        .mount("/", routes![index])
+        .launch();
+}
+
+#[get("/")]
+fn index(session: Session) -> String {
+    let mut count: usize = session.get_or_default("count");
+    count += 1;
+    session.set("count", count);
+
+    format!("{} visits", count)
+}
+```
+
+Anything serializable can be stored in the session, just make sure to unpack it to the right type.
+
+The session driver internally uses `serde_json::Value` and the `json_dotpath` crate. 
+Therefore, it's possible to use dotted paths and store the session data in a more structured way.
+

src/session.rs

@@ -40,12 +40,9 @@ impl<'a, 'r> FromRequest<'a, 'r> for &'a SessionID {
 
     fn from_request(request: &'a Request<'r>) -> Outcome<Self, (Status, Self::Error), ()> {
         Outcome::Success(request.local_cache(|| {
-            println!("get id");
             if let Some(cookie) = request.cookies().get(SESSION_ID) {
-                println!("from cookie");
                 SessionID(cookie.value().to_string()) // FIXME avoid cloning (cow?)
             } else {
-                println!("new id");
                 SessionID(
                     rand::thread_rng()
                         .sample_iter(&rand::distributions::Alphanumeric)
@@ -158,7 +155,7 @@ struct SessionFairing {
 impl Fairing for SessionFairing {
     fn info(&self) -> Info {
         Info {
-            name: "Session Fairing",
+            name: "Session",
             kind: fairing::Kind::Attach | fairing::Kind::Response,
         }
     }