How to manage complex type relationships in TypeScript for a multi-module application?
Could someone explain Building an application that requires multiple interconnected modules, I've run into some challenges while defining complex relationships between types. I'm using TypeScript 4.5 and a monorepo setup with Yarn Workspaces, which seems to complicate the type declarations further. For example, I have a `User` type and a `Post` type where each post is associated with a user. To model this, I initially tried the following: ```typescript interface User { id: string; name: string; posts: Post[]; } interface Post { id: string; title: string; content: string; author: User; } ``` This setup causes a circular reference issue, and TypeScript throws a warning about the potential for infinite recursion. To address this, I attempted to use forward declarations with `type` aliases, but it still felt clunky and error-prone. I also explored using `Omit` and `Pick` utility types to manage the relationships like this: ```typescript interface User { id: string; name: string; } interface Post { id: string; title: string; content: string; authorId: string; // reference to User ID } ``` This approach removes the circular dependency, but I lose direct access to the `User` object from the `Post` type, which makes it cumbersome to fetch posts along with user details in one go. Currently, I'm considering whether using a third-party library like `io-ts` would help in defining runtime types and potentially simplifying the relationships. Has anyone else tackled this type of architecture in TypeScript? What strategies did you find effective in managing complex type relationships while keeping your codebase maintainable? I'd love to see examples or best practices that might help me streamline these interconnected types without compromising on type safety or clarity. This is my first time working with Typescript 3.10. Thanks in advance!