added CHANGE command

server/src/api.rs

@@ -4,6 +4,7 @@ use crate::
 	// internal code
 	character,
 	// libraries
+	json,
 	HashMap,
 	Arc,
 	Mutex,
@@ -11,6 +12,7 @@ use crate::
 	mpsc::Sender,
 	info,
 	debug,
+	warn,
 	Serialize,
 	Deserialize,
 };
@@ -60,8 +62,21 @@ pub async fn api_process
 		.and(characters_filter)
 		.map(|name: String, characters: Arc<Mutex<HashMap<String, character::Character>>>|
 		{
-			let map = characters.lock().unwrap(); // TODO eh 
-			let reply = map.get(&name).unwrap(); // TODO eh
+			let characters = match characters.lock()
+			{
+				Ok(data) => data,
+				Err(poisoned) =>
+				{
+					warn!("Character Mutex is poisoned");
+					poisoned.into_inner()
+				},
+			};
+			let Some(reply) = characters.get(&name)
+			else
+			{
+				warn!("Client requested character that does not exist");
+				return warp::reply::json(&json!({"reply": "invalid character"}));
+			};
 			debug!("GET: name: {name}");
 			warp::reply::json(&reply)
 		}).boxed();