Added new struct and methods

src/managers/token_manager.rs

@@ -0,0 +1,32 @@
+use std::default::Default;
+
+use crate::models;
+
+pub struct TokenManager {
+    pub user: models::user::User,
+    pub api: models::api::API,
+}
+
+
+impl TokenManager {
+    pub fn request_token(&self) -> models::token::Token {
+        let usr_json = self.user.to_json();
+        println!("Sending request for a token");
+
+        let endpoint = self.construct_endpoint();
+        let mut url: String = String::from(&self.api.url);
+        url += &endpoint;
+
+        println!("URL: {}", url);
+
+        return models::token::Token::default();
+    }
+
+    fn construct_endpoint(&self) -> String {
+        let mut endpoint: String = String::from("api/");
+        endpoint += &self.api.version;
+        endpoint += "/login";
+
+        return endpoint;
+    }
+}