Flash-Sale Lab
Back to eventsQuick booking

Customer journey

Reserve with a live system view

High-demand concert drop exercising Redis Lua atomic pre-deduction, idempotency journal replay, and zero-oversell guarantee.

Demo session only; no login or real authentication is used.

No reservation

BlackPink World Tour 2026 — VIP Soundcheck

Apr 27, 2026 · District 1 Arena (National Stadium) · ₫900,000

Available

—

Reserved

—

Confirmed

—

Waiting for live inventory from the API

System X-Ray

Only states observed from the reservation API are shown.

  1. Durable state

    Waiting for API state

  2. Outcome

    Pending

  3. Operation

    Waiting for API state

  4. Order

    Not created

Try another outcome

Use these controls to exercise replay, expiry, sold-out and admission paths against the live API.

6
Distributed Architecture Pipeline· Observing: POST /api/v1/reservations
Engineering evidence: legacy order probe
On saleTicket ID 4

BlackPink World Tour 2026 — VIP Soundcheck

High-demand concert drop exercising Redis Lua atomic pre-deduction, idempotency journal replay, and zero-oversell guarantee.

When
Apr 27, 2026 | 20:00
Where
District 1 Arena (National Stadium) | Ho Chi Minh City

Flash price

₫900,000

Regular ₫4,500,000

n/a available1,000 VIP seats
Initial stock
n/a
Prepared
Needs warmup
Sale window
n/a

Order probe

Submit one controlled order request and observe how the selected strategy changes stock.

Advanced lab settings

Restores Redis stock when DB/order write fails.

6
Distributed Architecture Pipeline· Observing: POST /orders (REDIS_LUA_WITH_COMPENSATION)

Controlled system evidence

Open the benchmark and consistency tools when the customer journey needs an operator-level view.

BenchmarkConsistencyControl desk