tsk-71: Added methods for token expiration

src/token.rs

@@ -44,6 +44,12 @@ impl AccessToken {
     pub fn bearer_token(&self) -> String {
         format!("Bearer {}", self.token)
     }
+
+    pub fn token_expired(&self) -> bool {
+        let current_time = time::OffsetDateTime::now_utc();
+        let expired = time::OffsetDateTime::from_unix_timestamp(self.expiration).unwrap();
+        current_time > expired
+    }
 }
 
 impl Token {
@@ -51,9 +57,10 @@ impl Token {
         serde_json::to_string_pretty(&self)
     }
 
-    // TODO: Implement
     pub fn token_expired(&self) -> bool {
-        false
+        let current_time = time::OffsetDateTime::now_utc();
+        let expired = time::OffsetDateTime::from_unix_timestamp(self.expiration).unwrap();
+        current_time > expired
     }
 
     pub fn contains_scope(&self, des_scope: &String) -> bool {