Save mongodb data from post form and angular - angularjs

Question

This is my jade file (basically # stand for id and . for class) and I want to send this to mongodb and save user.activity
textarea#post-form.form-control(
rows="4",
placeholder="Share to world of LinkMe",
ng-model='user.activity'
)
button#post-btn.btn.btn-primary.pull-right(ng-click="post(user)") Link
Here is my code for the controller:
$scope.post = function(user){
auth.post(user).then(function(){
$scope.activity = user.activity;
})
}
And the auth.post function :
post: function(user){
var deferred = $q.defer();
var updatedUser = new UsersResource(user);
updatedUser._id = identity.currentUser._id;
updatedUser.$update().then(
function(){
identity.currentUser.activity = updatedUser.activity;
deferred.resolve();
},
function(response){
deferred.reject(response);
}
);
return deferred.promise;
}
Good thing is I see the change when this happens, but it is not saved in the database.
This is the userSchema:
var userSchema = mongoose.Schema({
username: {type: String, require: '{PATH} is required' , unique: true},
firstName: {type: String, require: '{PATH} is required'},
lastName: {type: String, require: '{PATH} is required'},
profilePic: {type: String, default: 'imgs/default.jpg'},
activity: String,
salt: String,
hashPass: String,
roles: [String]
});
I really appreciate help :)
P.P. I have this on server now :
app.put('/collections/:collectionName/:id', function(req, res, next) {
req.collection.updateById(req.params.id, {$set:req.body}, {safe:true, multi:false}, function(e, result){
if (e) return next(e)
res.send((result===1)?{msg:'success'}:{msg:'error'})
})
})
Problem now is that I have model of User from userSchema but I didn't declare any collections. What should I do ?

Answer 1

You'll need a REST interface on the server side to work with Mongo, take a look at this:
http://docs.mongodb.org/ecosystem/tools/http-interfaces/#HttpInterface-RESTInterfaces
Let's say you are using Node.js with Express and Mongoose, you will have to set up a REST api along the lines of:
var app = express();
var mongoose = require('mongoose');
var database_url = "mongodb://localhost:27017/Database";
var listen_port = 8080; // example port
var collections = ["collection1",...];
mongoose.connect(database_url);
var Model1 = mongoose.model('collection1', userSchema); // <--- your user schema
// example of a getter by id
app.get('/api/get/:id', function(req, res) {
Model1.find({ _id: req.params.id }, function(err, post){
res.send(post);
});
});
app.listen(listen_port);
and set up dependencies in your package.json file, like for instance
"dependencies" : {
"express" : "~3.4.4",
"mongoose" : "~3.6.2"
}
And then make use of Angular $http service in order to perform async calls to the API.
https://docs.angularjs.org/api/ng/service/$http