const goodNanoid = "MJBTltG6zIHelSq42cz51j_lESP7YSD_lLoOG4y_hsikIfCI403gLw6oJnreQW7u"
const badNanoid = "xv02pdYYi8Tb1SF1WjfSe" // bad because the nanoid's length is expected to be 64 characters
const schema = z.string().nanoid(64)

const goodNanoidResult = schema.safeParseAsync(goodNanoid)
const badNanoidResult = schema.safeParseAsync(badNanoid)

console.log(goodNanoidResult.success) // should be true
console.log(badNanoidResult.success) // should be false

const goodNanoid = "MJBTltG6zIHelSq42cz51j_lESP7YSD_lLoOG4y_hsikIfCI403gLw6oJnreQW7u"
const badNanoid = "xv02pdYYi8Tb1SF1WjfSe" // bad because the nanoid's length is expected to be 64 characters
// regex taken from https://github.com/colinhacks/zod/blob/f7ad26147ba291cb3fb257545972a8e00e767470/src/types.ts#L643C21-L643C40
const schema = z.string().regex(/^[a-z0-9_-]{64}$/i) // if you wish to check for a higher or lower size nanoid just change the 64 with the size of your choice

const goodNanoidResult = schema.safeParseAsync(goodNanoid)
const badNanoidResult = schema.safeParseAsync(badNanoid)

console.log(goodNanoidResult.success) // true
console.log(badNanoidResult.success) // false