Client Project

High-Concurrency Draw Flows

Registration control under traffic spikes and duplicate risk.

Draw and registration flows built to withstand concurrency spikes, duplicate attempts and inconsistent records in WordPress-backed portals.

Role

Full-stack Engineer / Implementation Owner

Type

Client Project

Context

These flows ran on portals where users registered for draws under time pressure. The same release had to hold under bursts of traffic while preventing duplicate or inconsistent entries.

Problem

Problem and constraints

The risk was not only load. The system also had to stop duplicate registrations, repeated submissions, invalid data combinations and edge cases created by concurrent requests.

Because the stack included WordPress and existing databases, the safeguards had to work across frontend, backend and storage rather than in one layer only.

Approach

Approach and technical decisions

I implemented validation on both sides of the request, added database restrictions and indexes, and instrumented the flow to make duplicate attempts and inconsistent writes visible.

The objective was to reject bad registrations early, keep persistence rules strict and leave enough observability to debug incidents in production.

Challenges

Synchronizing frontend checks with backend validation so the same record could not pass in one layer and fail in another.

Designing DB constraints and indexes around duplicate prevention without breaking the existing portal.

Handling traffic spikes without opening the door to repeated entries, fraud patterns or partial writes.

Outcome

The draw flows moved from ad-hoc validation to controlled registration paths with duplicate prevention and clearer operational signals.

That reduced inconsistent records, repeated entries and manual cleanup during high-demand windows.