Nodejs Rest API with mongoose and mongoDB

Question

I have this rest API on nodejs as follows

 router.route('/api/Customers')          
    .post(function(req, res) {        
        var Customer = new Customer();
        Customer.name = req.body.name;

        Customer.save(function(err) {
            if (err)
                res.send(err);
            res.json({ message: 'Customer created!' });
        });
  })
    .get(function(req, res) {
        Customer.find(function(err, Customers) {
            if (err)
                res.send(err);

            res.json(Customers);
        });
  });

  router.route('/api/Customers/:Customer_id')    
    .get(function(req, res) {
        Customer.findById(req.params.Customer_id, function(err, Customer) {
            if (err)
                res.send(err);
            res.json(Customer);
        });
    })

    .put(function(req, res) {
        Customer.findById(req.params.Customer_id, function(err, Customer) {
            if (err)
                res.send(err);
            Customer.name = req.body.name;  
            Customer.save(function(err) {
                if (err)
                    res.send(err);
                res.json({ message: 'Customer updated!' });
            });
        });
    })

    .delete(function(req, res) {
        Customer.remove({
            _id: req.params.Customer_id
        }, function(err, Customer) {
            if (err)
                res.send(err);

            res.json({ message: 'Successfully deleted' });
        });
});

How can I create endpoints for specific fields ? For example if I want to GET results for CustomerName, CustomerZip, etc .. Do I have to create separate end points for each field?

You really have two choices. 1. Have one endpoint return multiple fields. 2. Have separate endpoints return separate fields. Your response object can have any data sent you would like sent from your database, so you can decide what you want each endpoint to return (either 1 field, multiple fields, or no fields at all) — user2263572
– user2263572, Commented May 25, 2016 at 16:08

mcatta · Accepted Answer · 2016-05-26 08:33:00Z

3

Are you using express.js as framework? In this case you can put optional params in your route, for example:

router.route('/api/Customers/:Customer_id?')          
    .post(function(req, res) {        
...
  })
    .get(function(req, res) {
...
  });
});

in this way :Customer_id will be optional and you can manage logic inside your route.

This is a working example:

app.route('/test/:param1?/:param2?')
    .get( function(req, res, next) {

        res.json({
            'param1' : req.params.param1,
            'param2' : req.params.param2
        });

    });

app.listen(8080);

this route supports:

/test
/test/1
/test/1/2

inside response you can see value of this params, I don't know how pass only param2 without param1.

edited May 26, 2016 at 8:33

answered May 25, 2016 at 16:11

mcatta

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2 Comments

user2180794 Over a year ago

How can i put multiple parameters here ? And while calling the endpoint should i pass nulls for optional parameters ?

mcatta Over a year ago

I added a working example, i hope i answered your question

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