NodeJS MongoDB Express Beginner to Intermediate JavaScript

NodeJS Express MongoDB connected together to update database content from Frontend Web Application using jаvascript

Learn to build apps with NodeJS Express, MongoDB

How to apply jаvascript NodeJS to create applications

Create command-line apps

How to install and setup NodeJS

How to Connect to a MongoDB with Node

How to Create a MongoDB

Fundamentals of jаvascript

Web development experience

Prior Coding experience

Access to a computer with Admin permissions

Use of a code editor

NodeJS allows you to build complex and powerful application quickly and easily writing jаvascript code. NodeJS allows you to use jаvascript for not only web applications with the flexibility for a wide range of different purposes. Node brings jаvascript to the server, using Googles V8 ee.

Top Reasons for using Node.JS

In Demand Skillset - used by popular and large businesses

NodeJS is written in jаvascript which makes the transition to Node take less if you are already familiar with jаvascript.

Perfect solution for a full stack developer dealing with backend and databases

jаvascript is easy to start with a write code and run code within your own computer

Easily to develop locally

Open Source with an active community and support

Node Package Manager can allow you to create complex applications using existing modules, NPM has a massive number of packages.

Node is well supported, large size community and many forms and groups to share code and get help

Can be used to build micro services

Final Project in Section #6

Creating a fully functional node application, that uses Express to run a web application. Connect to a MongoDB and using Node allow the frontend web application to access the Database items, full CRUD interaction.

Create a web application using Express - output html file from public folder

Setup a MongoDB in the cloud prep to connect using NodeJS

Create and test insert into the database

Setup Frontend web application

Add DOM event listeners to trigger requests

Generate visual response as HTML from the Node response object

Update and create interactive list of database content CRUD

Add HTML updates to send requests to database.

Create (POST)

Read (GET)

Update (PUT)

Delete (DELETE)

#1 Introduction to Installing and Setup of Node

This section is a fast paced quick intro to NodeJS, and how you start using NodeJS. We discuss what NodeJS is and that it is not a programming language like jаvascript is but an interpreter and Environment for jаvascript.

Node is a lightweight framework developed on Chrome's V8 ee that can be used for largeScale application development. It's scalable because the server can respond in a non-blocking way.

Process object which is a global that provides information, and control over, the current Node.js process. Because its global it is always available to Node.js applications without using require

npm registry contains packages, many of which are also Node modules, or contain Node module

Demo how to setup your development environment setting up Editor

Visual Studio Code as an Editor with ready teal

Creating your first Node File and running the code

How Node Works and examples of simple node syntax

Where you can find out more about Node with more examples.

How to debug and output content into the teal various command line and console outputs

NodeJS programming language environment REPL Read Evaluate Print Loop

Examples of Node

Process Object - with examples

What Node Packages and NPM

#2 jаvascript Fundamentals quick review of jаvascript Coding

Explore the fundamentals of jаvascript and writing jаvascript code within the Node. Loaded with examples about the basics of coding jаvascript. Back to the basics of jаvascript code . Because node uses jаvascript code this section will provide a refresher and quick overview of jаvascript. Designed to cover the core jаvascript required for the upcoming sections and writing Node.

Variables and the Data Types. How to declare variables and examples of different Data Types.

Adding Comments to code

How to create Objects and Array

What jаvascript Functions are and how they work

Advanced Functions Immediately invoked Function Expression IIFE, Arrow format for functions, jаvascript Closure example

Different jаvascript operators and examples

Use of conditions for logic, turthy and falsey. How to use the Ternary Operator.

Examples of logic switch statement, and condition statement

jаvascript loop Structures For Loop, While Loop, DO-While Loop with code examples

Use of Objects and objects with methods.

jаvascript Arrays, adding, updating and removing items from an array. lots of commonly used useful array methods for array manipulation.

Array and Object Values, iterating through the contents of each.

Use of Template literals to set string values

Math and Data Method examples, generating random numbers and dates in jаvascript

Global object in Node with the use of out

Event Queue and Asynchronous operations with jаvascript

Examples of jаvascript Node r module

How to Construct promises and Resolve and Reject Promises

Debugging - use of Try, Catch, Finally which are used to handle exceptions in the jаvascript

jаvascript Async and Await examples and how the order of output on promise completion.

#3 jаvascript Asynchronous programming

Asynchrony, in computer programming, refers to the occurrence of events independent of the main program flow and ways to deal with such events. How to add callbacks that run once a stack is complete.

Covering Input Output which accesses anything outside the application. Once the application is started it will be loaded into the machine memory.

Coding Examples, and practice code outputting into the console when ready

Event Driven programming which makes Node.js fairly fast compared to other similar technologies. Once the application starts it initiates its variables, declares its functions and then waits for the event to occur.

The two types of API functions in Node.js, Asynchronous, non-blocking functions and Synchronous, blocking functions.

The differences difference between blocking and non-blocking calls in Node.js.

Blocking occurs when the execution of additional jаvascript in the Node.js process must wait until a non-jаvascript operation completes. The event loop is unable to continue running jаvascript while a blocking operation is occurring. All the IO methods in node.js provide asynchronous versions, which are non-blocking.

Node keeps an event loop, which monitors when a task gets completed, which would then fire the corresponding events. Node.js overcomes the problem of blocking of I/O operations by using the event loop instead of threads.

Recursive functions, Function that calls itself is called a recursive function - must have a condition to break the loop.

The Eventter module makes possible the communication and interaction between objects in Node. Eventter provides properties like on and . The on property is used to bind a function with the event and property is used to fire an event.

NodeJS works on the Google v8 environment utilizing jаvascript as its scripting language.

How a callback works, Callback added to the background will run once stack is complete

Use of setout and how it works in the queue.

Callback example Create a function that returns the results from another function

Event Loop with an Example of a Recursive Function

The three states of promises

How to create promises and more promises examples

Node process object

Node Event Eventter

how to setup events and trigger of events

#4 Node Modules

Each module in NodeJS has its own context and cannot interfere with other modules. Modules are like libraries that you can include into your application. Node.js has a set of built-in modules which you can use without any further installation likehttp, fs, path, and url.

You can create your own modules, and easily include them in your applications. Save them locally and use within your node application as needed. Perfect to separate functionality for your application. To make properties and methods available outside the module file use the keyword exports.

NPM hosts thousands of third party modules, free packages to and use. A package in Node.js contains all the files you need for a module.

Debugging - The try...catch statement marks a block of statements to try and specifies a response should an exception be thrown.

How you can create your own module locally

Commonly used builtin modules likehttp, fs, path and url

Using FS module to update file contents, delete files, create new files

Getting file information including file size with fs.stat

Use of node package manager NPM explore some popular node packages.

Use of package.json - adding and removing packages

Node Package Manager Module lodash

Node Buffers how to copy and slice buffer contents

Debugging node use of Throw, try and catch

#5 Node Web Application with Express

Express is a minimal and flexible Node.js web application framework that provides a robust set of features for web and mobile applications. Explore how to setup a web application quickly with Express.

The arguments which are available to an Express JS route handler function are request (request Object), response (response Object) and optional Next which can pass control to one of the subsequent route handlers.

How to setup express and output html into a localhost webpage

How to Serve files from a static directory using Express

Values that can be used in route filtering, pattern match and reg exp

Route parameters with req.params

Express Route with full CRUD Create Read Update Delete Methods

Returning JSON response

Use of bodyparser

Sending data from a frontend form to node express to output into the teal

Returning a JSON response to the frontend from a frontend request

#6 MongoDB with Frontend web page interaction using Node and Express

The official MongoDB Node. js driver allows Node. js applications to connect to MongoDB and work with data. The driver features an asynchronous API which allows you to access method return values through Promises or specify callbacks to access them when communicating with MongoDB.

How to setup a cloud base mongo Database to use in practice development

Connecting to a mongoDB

Use of mongoDB client in Node

Checking a connection to the database

How to connect to a MongoDB and select the collections, create collections

How to output database collections to the frontend using Express and Node.

Creating a fully functional node application that uses Express to run a web application. Connect to a MongoDB and using Node allow the frontend web application to access the Database items, full CRUD interaction.

Anyone who wants to learn more about NodeJS

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