Sailsjs : check user - angularjs

Question

i'm trying to check if user already exite before register but not work for me
when i test in postman it's still created user any idea ?
create: function (req, res) {
if (req.body.password !== req.body.confirmPassword) {
return res.json(401, {err: 'Password doesn\'t match, What a shame!'});
}
User.find(req.body).exec(function(err,users){
if (err) {
return res.negotiate(err);
}
if (users.length) {
res.status(400);
return res.json('User already exists!');
}
}else{
User.create(req.body).exec(function (err, user) {
if (err) {
return res.json(err.status, {err: err});
}
// If user created successfuly we return user and token as response
if (user) {
// NOTE: payload is { id: user.id}
res.json(200, {user: user, token: jwToken.issue({id: user.id})});
}
});
}
});

Answer 1

try edit your code in this lines
User.find(req.body).exec(function(err,users){});
to :-
User.findOne({email:params.email}).exec(function(err,user){
if(user){
/**
*user exists !
*/
}else{
/**
*create new user
*/
}
}
because you use find with criteria which isn't exist so it's returns
null and create new user in every time

Answer 2

If you want to have users with unique username and/or email you can use unique type in model's attribute definition like this:
attributes: {
username: {
type: 'string',
unique: true
}
}
Then your controller method would look like this:
create: function (req, res) {
if (req.body.password !== req.body.confirmPassword) {
return res.json(401, {err: 'Password doesn\'t match, What a shame!'});
}
User.create(req.body, function (err, user) {
if (err) {
return res.negotiate(err); // validation error will be automatically passed there
}
res.json(200, {user: user, token: jwToken.issue({id: user.id})});
});
});