Pick the store
Difficulty 1 of 5
Orders join customers, line items, and stock. One transaction must reserve stock and create all order rows. Choose a store for these requirements.
Options
- Key-value records with separate writes
- Relational tables with transactions
- One document per line item
Goals and limits
- p99 latency
- under 200 ms
- Monthly cost
- under 100 USD/mo
- Traffic
- 100 req/s
Concepts
How players did
Player results load from the server.