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[scotty-rdn]

💬 Question here

I feel like this should be covered somewhere in documentation, but if it is I keep missing it.

I'm trying to use Fastify, TypeBox, and FastifyTypeBoxProvider.

I create my schemas. If I pass the Schema directly to the route() method, the types are provided successfully in the handler

However, if I try to add the schema to the Fastify Instance and reference it there, it no longer works.

I am also using @fastify/swagger and @fastify/swagger-ui, and that is being generated with the type references intact.

Is this just not something that can be supported by TypeBoxTypeProvider?

Your Environment

• node version: 22
• fastify version: "^5.2.1"
• os: Mac

[Eomm]

Is this just not something that can be supported by TypeBoxTypeProvider?

No, TypeBoxTypeProvider does not support it. I think it is related to this issue: fastify/fastify-type-provider-typebox#86

Note that the $ref are evaluated at runtime, and to provide such a feature the IDE should:

• inspect all your schemas in the source code
• choose the right one (what if multiple schemas have the same id?)
• provide the autocompletion

From the source code point of view, the plain {$ref: 'something'} does not provide any value to the reusability over the fastify.getSchema('something')