another attempt at fixing ability to join non-existent lobbies

lobby.js

@@ -16,10 +16,10 @@ async function createLobby() {
 }
 
 async function joinLobby(lobbyId, player_name) {
-    if (playerMap[lobbyId]) {
-        let response = await fetch(`https://www.deckofcardsapi.com/api/deck/${lobbyId}/pile/${player_name}/add/?cards=`)
-        console.log(response);
-    } else console.log("Lobby with "+lobbyId+" not found.");
+
+    let response = await fetch(`https://www.deckofcardsapi.com/api/deck/${lobbyId}/pile/${player_name}/add/?cards=`)
+    console.log(response);
+
 }
 
 app.get("/lobby/create", async (req, res) => {
@@ -42,18 +42,21 @@ app.get("/lobby/join", async (req, res) => {
     if (!user) {
         return res.status(401).json({error: "User doesn't exist"});
     }
+    for (let lobby of playerMap) {
+        if (playerMap[lobby.lobbyId] == lobbyId) {
+            await joinLobby(lobbyId, user.username);
 
-    await joinLobby(lobbyId, user.username);
+            if (!playerMap[lobbyId]) {
+                playerMap[lobbyId] = [];
+            }
 
-    if (!playerMap[lobbyId]) {
-        playerMap[lobbyId] = [];
+            if (!playerMap[lobbyId].includes(username)) {
+                playerMap[lobbyId].push(username);
+            }
+
+            res.json({lobbyId, username});
+        } else console.log("Lobby with " + lobbyId + " not found.");
     }
-
-    if (!playerMap[lobbyId].includes(username)) {
-        playerMap[lobbyId].push(username);
-    }
-
-    res.json({lobbyId, username});
 });
 
 app.get("/lobby/players", async (req, res) => {