[i_like_robots]

Congrats, this looks really nice! I recently finished a side project using Fastify and the Fastify Swagger plugin (which extends the built-in request and response validation and can dynamically generate an Open API definition) which was a good experience overall but the addition of request mocking and the solid documentation site shown here could tempt me to revisit it.

[anttiviljami]

Cheers! Going from code first to schema first is definitely worth it in my experience! Especially when working in a team.

The nice thing is you already have an openapi spec, so it’s pretty trivial to eject from fastify swagger and switch to openapi-backend if you want!

Here’s an example of openapi-backend running on Fastify

https://github.com/openapistack/openapi-backend/tree/main/ex...