Dev to Main Sync

[AnujChhikara]

Date: 12 Feb 2026

Developer Name: @AnujChhikara

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Issue Ticket Number

• Feature: Application Edit Functionality #2563
• Fix Discord Onboarding Role Assignment and Integrate with New Application Flow #2557

PRs going for sync

• feat: improve application update logic and validation #2561
• test: implement tests for application update functionality #2562
• feat: enhance Discord invite generation and role handling #2570

Description

• Added edit application functionality

Documentation Updated?

• Yes
• No

Under Feature Flag

• Yes
• No

Database Changes

• Yes
• No

Breaking Changes

• Yes
• No

Development Tested?

• Yes
• No

Screenshots

Screenshot 1

Screen.Recording.2026-02-12.at.12.40.27.AM.mov

Screen.Recording.2026-02-13.at.11.31.30.PM.mov

In general, the fix is to introduce a rate-limiting middleware (for example, with express-rate-limit) and apply it to the relevant routes (or the entire router) that perform authentication/authorization and likely expensive operations. This middleware will cap the number of requests per IP (or another key) within a given time window, mitigating denial‑of‑service attempts via excessive authorized requests.

For this specific file, the best minimal‑change fix is:

• Import and configure a rate limiter in routes/applications.ts using express-rate-limit.
• Attach the limiter either to the entire router (so all application routes are covered) or at least to the specific routes performing authorization. Applying it once to the router is simpler and addresses all three variants in one place without altering existing controller logic.

Concrete changes in routes/applications.ts:

1. Add a require("express-rate-limit") import right after the existing imports.
2. Define a limiter constant using RateLimit({ windowMs: ..., max: ... }). We’ll choose reasonable defaults (e.g., 100 requests per 15 minutes) as in the background example.
3. Apply router.use(limiter); after const router = express.Router(); so it protects all routes in this router, including the one on line 20 that triggered the alert.

No other existing middleware, handlers, or signatures need to change.

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In general, the fix is to introduce a rate-limiting middleware (such as express-rate-limit) and apply it to the sensitive route so that even authorized users cannot spam it. This limits the number of invite-generation requests per client (typically per IP or per user identifier) over a time window, mitigating DoS and abuse of downstream services like Discord.

The best fix here, without changing existing functionality, is to add express-rate-limit to this router and apply a limiter only to the /invite POST route (and potentially the GET route if desired). We keep all existing middlewares and handlers in the same order, only inserting an extra middleware in the chain. Following the example in the background, we will require('express-rate-limit'), configure a limiter (e.g., modest per-minute or per-15-minute caps), and insert it in the router.post("/invite", ...) definition immediately after authenticate so that only authenticated requests are counted/throttled. This localizes the change to routes/discordactions.js and preserves the existing behavior of authentication, role checks, and business logic.

Concretely:

• At the top of routes/discordactions.js, add const rateLimit = require("express-rate-limit");.
• Define a limiter constant, e.g. const inviteRateLimiter = rateLimit({ windowMs: 15 * 60 * 1000, max: 100 }); (you may adjust numbers later, but we must pick reasonable defaults now).
• Update the /invite POST route (around line 50) to include inviteRateLimiter in the middleware list: router.post("/invite", authenticate, inviteRateLimiter, checkCanGenerateDiscordLink, generateInviteForUser);.
  All other routes remain unchanged.