The source code for the Online Voting System is available on GitHub at the following repository:
The castVote() function uses a MySQL transaction: The source code for the Online Voting System
When reviewing source code for these projects, prioritize those that include: and finalizing in one transactional flow.
This snippet demonstrates the atomic nature of the voting process — checking, recording, updating, and finalizing in one transactional flow. The source code for the Online Voting System