Typescript For Apps Vs Typescript For SDKs

The author reflects on their journey with TypeScript, initially embracing its benefits in making code cleaner and clearer compared to JavaScript, but realizing their limitations during a major refactor of the Inngest TypeScript SDK. They discovered that creating types for a library differs significantly from developing applications, as public types in an SDK serve as a contract with users, requiring careful consideration of user experience, documentation, and potential breaking changes. The author emphasizes the importance of designing types that are clear, intuitive, and maintainable, highlighting the necessity of empathy in anticipating how users will interact with the SDK. Through this process, they encountered new challenges, such as transforming user-facing types to align with internal logic without exposing complexities, and the broader implications of Hyrum's Law on type systems. Ultimately, the experience underscored the need for a shift in mindset from merely ensuring code compiles to ensuring it is understandable and usable for others, a valuable perspective in any software development context.

Use this post, company, and trend context to find content marketing opportunities, perform competitive analysis, or address product feature gaps via the Plushcap MCP server or the Plushcap API.