crud.js

// all
$.getJSON('http://spa.devrobots.com.mx/calendars', function(response) {
    console.log(response);
});

// get one
$.getJSON(`http://spa.devrobots.com.mx/calendars/get/${id}`, function(response) {
    console.log(response);
});

// insert
$.post('http://spa.devrobots.com.mx/calendars/insert', {
    "title": "sprint",
    "description": "se llevará acabo el sprint planning",
    "location": "Mexico City",
    "start_date": "2018-03-12 10:00:00",
    "end_date": "2018-03-12 11:00:00",
    "color_id": "1",
    "attendees": ["karlozz157@gmail.com"]
}, function(response) {
    console.log(response);
});

// update
$.post(`http://spa.devrobots.com.mx/calendars/update/${id}`, {
    "title": "sprint 123",
    "description": "se llevará acabo el sprint planning",
    "location": "Mexico City",
    "start_date": "2018-03-12 10:00:00",
    "end_date": "2018-03-12 11:00:00",
    "color_id": "1",
    "attendees": ["karlozz157@gmail.com"]
}, function(response) {
    console.log(response);
});

// delete
$.ajax({
    url: `http://spa.devrobots.com.mx/calendars/delete/${id}`,
    method: 'delete',
    success: function(response) {
        console.log(response);
    }
});