Neeraj Add Event Waitlist to Improve Event Cards in event Database Design Page Backend

[Neeraj-Kondaveeti]

Description

Related PRS (if any):

To test this backend PR you need to checkout the OneCommunityGlobal/HighestGoodNetworkApp#5057 frontend PR.
…

Main changes explained:

• Added waitlist support to event model
  • Introduced waitlist array with userId and timestamp
• Implemented waitlist APIs
  • POST /events/:eventId/waitlist → Join waitlist
  • DELETE /events/:eventId/waitlist → Leave waitlist
• Auto-promotion logic
  • Added autoPromoteFromWaitlist helper
  • Promotes users in FIFO order
  • Supports multiple promotions when multiple spots are available
• Waitlist position tracking
  • Returns correct position when user joins waitlist
  • Calculates user’s position dynamically in getEvents
• Notification system (simulated)
  • Added sendWaitlistNotification abstraction
  • Triggered when users are promoted from waitlist
• Improved validation and safety
  • Prevent duplicate waitlist entries
  • Validate userId format
  • Prevent invalid removals
  • Removed unsafe logging of user-controlled data (SonarQube compliance)

How to test:

1. check into current branch
2. do npm install and ... to run this PR locally
3. Clear site data/cache
4. log as admin user
5. Test out the following queries in Postman to verify the data is being manipulated correctly and updates the database:

   • GET http://localhost:4500/api/events

     • Should display all the data available in the database design page.

   • POST http://localhost:4500/api/events/67ae203b55b63b4c0a84130f/waitlist

     • Will display Added to Waitlist or Already in Waitlist based on the status of the user.

   • DELETE http://localhost:4500/api/events/67ae203b55b63b4c0a84130f/waitlist

     • Will delete / remove the user from the waitlist (Can test this out by running POST method once again) .
6. While testing the queries in postman make sure you set this in the body section:
   • {
     "userId": "67b88b03056564426e51bb7b"
     }

You can test out adding multiple users by fetching the user ID using GET method. You should be able to see a change in the position of the user in the waitlist.

Screenshots or videos of changes:

[Anusha-Gali]

Hi Neeraj,

I have reviewed your PR locally and the API responses are as per requirement.

[sonarqubecloud]

Quality Gate passed

Issues
2 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[one-community]

Thank you all, merging!