domain-fintech

To handle precise decimal arithmetic in Rust, enforce rust_decimal::Decimal for monetary values. This prevents floating-point errors during financial calculations and ensures accurate, auditable money math across fintech applications.

Use Arc<T> instead of Rc for sharing financial data across async boundaries to ensure thread safety. Arc<T> enables safe, concurrent access to shared data structures across multiple threads in Rust async environments.

The best way to implement immutable transaction modeling with event sourcing in Rust is to promote immutable transactions for reproducible audits. This approach ensures every state change is captured as an immutable event, creating an auditable workflow.

Yes, this fintech Rust guidance enforces specific patterns for audit trails by applying immutable event sourcing and transaction modeling. It ensures reproducible audits by requiring precise decimal arithmetic and immutable event logs for all financial operations.

No, you should not use floating-point types for monetary values in a Rust fintech application. The guidance enforces rust_decimal::Decimal to avoid floating-point errors and maintain the precision required for financial calculations and auditability.