user validation failed: password: Cast to string failed for value "Promise { <pending> }" at path "password"

This looks like a Mongoose error, when the password is not valid (as string in this case) according to the model's Schema. This most likely occurs with the password 'hasher' (eg. bcrypt) not completing the hashing process before the attempt to create a user... Solution: use async/await with your hashing process, for 'bcrypt' example:

const salt = await bcrypt.genSalt(10)
const hashedPassword = await bcrypt.hash(password, salt)
newUser.password = hashedPassword

Don't forget to put 'async' before the function that's calling it... I hope this helps

bradtraversy / mern_shopping_list

user validation failed: password: Cast to string failed for value "Promise { <pending> }" at path "password" #49