How to build a multi-region betting application (with reference architecture)

The rapid growth of sports betting, or real-money gaming, presents unique challenges in building efficient and compliant betting applications, especially given the regulatory landscape and user expectations. Essential elements for these applications include elastic scalability to handle fluctuating demand, consistency to ensure precise tracking of bets, resilience to avoid downtime during critical events, and low latency for optimal user experience. Multi-region architecture is vital, particularly in the U.S., due to legal constraints like The Wire Act, which necessitates geolocating data within specific state boundaries. Traditional approaches using databases like PostgreSQL can lead to complexity and potential data loss, while adopting a distributed SQL database like CockroachDB simplifies these challenges by supporting geolocation, minimizing data duplication, and automatically managing data distribution. This architecture, used by companies like Hard Rock Digital, enhances reliability and performance by using built-in tools for data replication and synchronization, supporting seamless scaling, and reducing the need for complex application logic.

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