Mastering TypeScript at Scale — Part 4: Monorepo Type Safety & Module Boundaries
Enforcing strict module contracts in a monorepo: path aliases, project references, barrel files, and why you should treat your shared packages as published APIs.
Thoughtfully researched, carefully written. Long-form pieces, deep dives, and expert perspectives — for curious minds who want more than headlines.
Enforcing strict module contracts in a monorepo: path aliases, project references, barrel files, and why you should treat your shared packages as published APIs.
Compile-time safety stops at the API boundary. This part covers building end-to-end type safety from HTTP request to database response using Zod schemas.
Constraint propagation, infer keyword, template literal types, and how to write utility types that the compiler can fully verify — no any escapes.
A deep dive into TypeScript's structural type system, variance, conditional types, and mapped types — understanding the engine before tuning it.