option-patterns

Option patterns eliminate nulls by converting nullable data to Option types at input boundaries using Option.fromNullable, then pattern-matching on Some/None cases. This enforces exhaustive handling so null checks become compile-time safe, preventing silent null propagation through your codebase.

Map API nullable fields to Option types at the boundary layer, converting JSON nulls with Option.fromNullable. Use Option.match to handle Some and None cases explicitly, and Option.getOrNull or Option.getOrElse to produce null-safe outputs when returning to callers or serializing back to JSON.

Nullable types allow null silently; Option makes null handling explicit and mandatory. Option requires exhaustive pattern-matching on Some and None, catching null-related bugs at compile time rather than runtime, and works with Schema integration to validate domain types at API boundaries.

Yes. Option patterns integrate with Schema to map API nullable fields to domain Option types, enforcing type-safe conversion at boundaries. This allows you to validate and transform JSON payloads with nullable properties into Option-backed domain models automatically.

No. Option is a straightforward nullable container. Start by converting nullable inputs with Option.fromNullable, then use Option.match to handle Some and None cases. The pattern works in TypeScript without advanced functional programming knowledge.

Option works best for nullable domain data and API contracts. Avoid it for performance-critical paths where the overhead of wrapping matters, or when your codebase already has a established null-coalescing pattern. For simple leaf values without branching logic, plain nulls may suffice.