Code refactoring

src/app.rs

@@ -20,13 +20,13 @@ pub fn load_app() -> Result<App, std::io::Error> {
     let service_passphrase_env = envy::environment::get_env("SERVICE_PASSPHRASE");
 
     let envs = vec![
-        api_url_env,
-        auth_url_env,
-        service_username_env,
-        service_passphrase_env,
+        &api_url_env,
+        &auth_url_env,
+        &service_username_env,
+        &service_passphrase_env,
     ];
 
-    let check_envs = |vs: &Vec<envy::EnvVar>| -> (bool, Option<String>) {
+    let check_envs = |vs: &Vec<&envy::EnvVar>| -> (bool, Option<String>) {
         for env in vs {
             if env.value.is_empty() {
                 return (false, Some(format!("Key {} is not provided", env.key)));
@@ -36,19 +36,25 @@ pub fn load_app() -> Result<App, std::io::Error> {
     };
 
     let (envs_valid, reason) = check_envs(&envs);
-
     if envs_valid {
+        let auth_url: String = auth_url_env.value;
+        let api_url: String = api_url_env.value;
+        let service_username: String = service_username_env.value;
+        let service_passphrase: String = service_passphrase_env.value;
         match textsender_models::config::auxiliary::load_config() {
             Ok(twilio_config) => Ok(App {
-                api_url: envs[0].value.clone(),
-                auth_url: envs[1].value.clone(),
-                service_username: envs[2].value.clone(),
-                service_passphrase: envs[3].value.clone(),
+                api_url,
+                auth_url,
+                service_username,
+                service_passphrase,
                 twilio_config,
             }),
             Err(err) => Err(err),
         }
     } else {
-        Err(std::io::Error::other(reason.unwrap()))
+        match reason {
+            Some(reason) => Err(std::io::Error::other(reason)),
+            None => Err(std::io::Error::other("No reason found")),
+        }
     }
 }