How do I call a mongoose Schema function with Restangular? - angularjs

Question

I'm new to MEAN development, and I'm using bcrypt to encrypt the password from UserSchema (everything works wonders), but since I have to authenticate from the client side I've made a function to the UserSchema:
UserSchema.methods.comparePassword = function(candidatePassword, cb) {
bcrypt.compare(candidatePassword, this.password, function(err, isMatch) {
if (err) return cb(err);
cb(null, isMatch);
});
};
Now.. how do I call this function from the client side?
I'm using Restangular, and I'm trying something like this:
function authLogin() {
if(vm.user && vm.user.email && vm.user.password){
User.getList({ email: vm.user.email }).then(function(user){
user.comparePassword(vm.user.password, function(err, isMatch) {
if (err) throw err;
console.log(vm.user.password, isMatch);
});
});
}}
But then occurs an error saying that user doesn't have the funciton:
user.comparePassword is not a function
So, what is wrong about it? Or it is not possible to call a Schema function directly from the client side?

Answer 1

I believe the answer to your immediate question (if i understand which of your code samples lives to which layer): why is it "not possible to call a Schema function directly from the client side" is that the server and client side javascript run in a completely different context so functions you might declare in server-side models or middleware are not available to your client context.
The general solution to "call a schema function" from the client side with node and javascript frameworks is to POST or GET data to a server-side API endpoint and then you call your schema methods within the API code (or middleware attached to that API endpoint).
I would suggest that you take a look at the https://www.npmjs.com/package/passport passport authentication API module which is a market standard way to handle client authentication that you should be able to pretty easily bolt onto your application.