Better example

examples/claims.rs

@@ -1,11 +1,8 @@
 extern crate jsonwebtoken as jwt;
 extern crate rustc_serialize;
 
-use jwt::{
-    Algorithm,
-    encode,
-    decode
-};
+use jwt::{encode, decode, Algorithm};
+use jwt::errors::{Error};
 
 #[derive(Debug, RustcEncodable, RustcDecodable)]
 struct Claims {
@@ -19,6 +16,16 @@ fn main() {
         company: "ACME".to_owned()
     };
     let key = "secret";
-    let token = encode::<Claims>(my_claims, key.to_owned(), Algorithm::HS256).unwrap();
-    let claims = decode::<Claims>(token.to_owned(), key.to_owned(), Algorithm::HS256).unwrap();
+    let token = match encode::<Claims>(my_claims, key.to_owned(), Algorithm::HS256) {
+        Ok(t) => t,
+        Err(_) => panic!() // in practice you would return the error
+    };
+
+    let claims = match decode::<Claims>(token.to_owned(), key.to_owned(), Algorithm::HS256) {
+        Ok(c) => c,
+        Err(err) => match err {
+            Error::InvalidToken => panic!(), // Example on how to handle a specific error
+            _ => panic!()
+        }
+    };
 }