TypeError: Cannot read property 'validate' of undefined?

[A100D-JS]

Hi,

If you’re using more up-to-date version of Joi package, the syntax has been changed so it might be the reason that you’re getting this error:

Joi version 17+

Hi, // Joi Version -> 17 app.post("/api/courses", (req, res) => { const name = { name: req.body.name }; const schema = Joi.object({ name: Joi.string().min(3).required() }); const result = schema.validate(name); if (result.error) { res.status(400).send(result.error.details[0].message); } And the rest would be the same