Adding End points to the server: Error : localhost:3000/cat not found

[keshavrddy]

//cats.js
var _ = require('lodash');

module.exports = function (app) {
_cats = [];
// Create
app.post('/cat', function (req, res) {
_cats.push(req.body);
res.json({info: 'cat created successfully'});
}
);
/* Read*/
app.get('/cat/:id', function (req,res){
res.send(
_.find(
_cats,
{
name: req.params.id
}
)
);
});

// Update
app.put('/cat/:id', function (req, res) {
var index = _.findIndex(
_cats,
{
name: req.params.id
}
);
_.merge(_cats[index], req.body);
res.json({info: 'cat updated successfully'});
});

// Delete
app.delete('/cat/:id', function (req, res) {
_.remove(_cats, function(cat){
return cat.name === req.params.id;
});
res.json({info: 'cat removed successfully'});
});
};

//index.js
var express = require('express');
var app = express();
var cats = require('./cats.js')(app);

var bodyparser = require('body-parser');

app.get('/', function (req,res) {
res.send('Hello World');
//res.json({hello:'world'});
});

var server = app.listen(3000, function () {
console.log('Server running at http://127.0.0.1:3000');
});

Ran nodemon index.js
Also no records in the network tab..