Update examples and readme for exp use

README.md

@@ -28,7 +28,8 @@ use jwt::{encode, decode, Header, Algorithm, Validation};
 #[derive(Debug, Serialize, Deserialize)]
 struct Claims {
     sub: String,
-    company: String
+    company: String,
+    exp: usize,
 }
 ```
 

examples/custom_header.rs

@@ -9,13 +9,15 @@ use jwt::errors::{ErrorKind};
 #[derive(Debug, Serialize, Deserialize)]
 struct Claims {
     sub: String,
-    company: String
+    company: String,
+    exp: usize,
 }
 
 fn main() {
     let my_claims = Claims {
         sub: "b@b.com".to_owned(),
-        company: "ACME".to_owned()
+        company: "ACME".to_owned(),
+        exp: 10000000000,
     };
     let key = "secret";
 

examples/validation.rs

@@ -9,13 +9,15 @@ use jwt::errors::{ErrorKind};
 #[derive(Debug, Serialize, Deserialize)]
 struct Claims {
     sub: String,
-    company: String
+    company: String,
+    exp: usize,
 }
 
 fn main() {
     let my_claims = Claims {
         sub: "b@b.com".to_owned(),
-        company: "ACME".to_owned()
+        company: "ACME".to_owned(),
+        exp: 10000000000,
     };
     let key = "secret";
     let token = match encode(&Header::default(), &my_claims, key.as_ref()) {
@@ -27,13 +29,12 @@ fn main() {
         sub: Some("b@b.com".to_string()),
         ..Validation::default()
     };
-
     let token_data = match decode::<Claims>(&token, key.as_ref(), &validation) {
         Ok(c) => c,
         Err(err) => match *err.kind() {
-            ErrorKind::InvalidToken => panic!(), // Example on how to handle a specific error
+            ErrorKind::InvalidToken => panic!("Token is invalid"), // Example on how to handle a specific error
-            ErrorKind::InvalidIssuer => panic!(), // Example on how to handle a specific error
+            ErrorKind::InvalidIssuer => panic!("Issuer is invalid"), // Example on how to handle a specific error
-            _ => panic!()
+            _ => panic!("Some other errors")
         }
     };
     println!("{:?}", token_data.claims);