configToJSONSchema improvements

[Dutch77]

Hi,
I'm currently using this https://github.com/payloadcms/payload/blob/main/packages/payload/src/utilities/configToJSONSchema.ts#L365
to generate some json schemas. What bothers me is lack extra information like:

• payload cms field is date but result field schema is only {"type": "string"} but could be {"type": "string", "format": "date-time"}
• payload cms field is email again only {"type": "string"}

...

Is this on some purpose or is there a room for improvements (PR)?

For example this plugin https://github.com/janbuchar/payload-oapi uses this schema for automatic openapi schema specification and lack of extra information is also limiting factor there, it can be much more precise.

Thanks for any response :)

[Dutch77]

for now I solved my issue with plugin.

import { Config, Plugin } from 'payload'

export const fieldSchemaFix = (): Plugin => {
  return async (config: Config): Promise<Config> => {
    config.onInit = (payload) => {
      payload.config.collections.forEach((collection) => {
        collection.fields.forEach((field) => {
          if (field.type === 'date') {
            field.typescriptSchema = [
              () => {
                return {
                  type: 'string',
                  format: 'date-time',
                }
              },
            ]
          }
        })
      })
    }
    return config
  }
}