feat: replace discord username to guild nickname

.vscode/launch.json

@@ -0,0 +1,15 @@
+{
+  // 使用 IntelliSense 以得知可用的屬性。
+  // 暫留以檢視現有屬性的描述。
+  // 如需詳細資訊，請瀏覽: https://go.microsoft.com/fwlink/?linkid=830387
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "name": "Attach to pm2",
+      "type": "node",
+      "request": "attach",
+      "restart": true,
+      "port": 9229
+    }
+  ]
+}

src/routes/index.js

@@ -56,11 +56,13 @@ router.get('/leaderboard', validate, async function (req, res) {
 
     const fetchUserDetails = async (doc) => {
       const data = doc.data();
-      const discordUser = await client.users.fetch(data.discordId);
+      const guild = await client.guilds.fetch(process.env.DISCORD_GUILDID);
+      const member = await guild.members.fetch(data.discordId);
+
       return {
         id: doc.id,
-        name: discordUser.username,
-        avatarURL: discordUser.displayAvatarURL(),
+        name: member.nickname || member.user.username,
+        avatarURL: member.user.displayAvatarURL(),
         ...data
       };
     };