Infer object schema from JSON

[pke]

I wonder if there is a smart way to replace this code, which always has to parse JSON before parsing it with zod:

try {
  const response = schema.parse(JSON.parse(data))
} catch {
}

I came up with this (following some SO post):

const CloseEntity = z.object({
  success: z.boolean(),
  messageMarkdown: z.string(),
  detail: z.string().optional(),
})

const JsonSchema = z
  .string()
  .transform((json, context) => {
    try {
      return JSON.parse(json)
    } catch (error: any) {
      context.addIssue({
        code: z.ZodIssueCode.custom,
        message: error?.message || error,
      })
      return z.never
    }
  })
  .pipe(CloseEntity)

and then one can just write const response = JsonSchema.parse(data) but its still too complicated with the piping, imho.

I would prefer something more along the lines: if input is string transform to object first, then validate object

Or a helper function, which detects what to do?

function parse<T>(schema: z.Schema<T>, json: string|any) {
  if (typeof json === "string") {
    json = JsonSchema.parse(json)
  }
  return schema.parse(json)
}