example with fastify-type-provider-zod

[siddarth]

Prerequisites

• I have written a descriptive issue title
• I have searched existing issues to ensure the feature has not already been requested

🚀 Feature Proposal

Thank you for all of the work you're putting into this project: it's been a pleasure to use.

It would be great if you could add an example of using multipart form-uploads with the the fastify-type-provider-zod to the README. Between fastify/swagger, fastify-type-provider-zod and fastify/multipart, I'm at a bit of a loss on what the Correct Way to play nicely across these three.

Motivation

No response

Example

No response

[ViniciusLeviVL]

Added, waiting merge #564

Note: In my project I need to verify if the file exists in refine or it throws an error, so is recommended just disable it using hide: true, but if you need it, this could be helpful

z.custom<MultipartFile>()
  .refine(
    (file) => // Don't verify in refine if the file exists throws an error in Swagger UI
      !file || (!!file && file.file.bytesRead <= 10 * 1024 * 1024),
    {
      message: 'The image must be a maximum of 10MB.',
    },
  )