When I started building APIs, I spent way too much of my life keeping three things in sync: the actual route code, the validation, and the docs. You change one field, you forget the other two, and a week later someone on the frontend team pings you asking why the docs say title but the API returns name . Been there. Shipped that bug. Apologized in standup.

DaloyJS is the framework I wish I had back then. Let me walk you through what it is, in plain language, without assuming you have ten years of backend scars.

The one-sentence version

DaloyJS is a TypeScript web framework where you define a route once, and from that single definition you get validation, types, OpenAPI docs, and a typed client SDK. No copy-pasting.…