1580820420
How to Create a simple Blog using Mongodb, Node-js and Express
Introduction
In this tutorial articles, we will create a simple blog that blog visitor can read blog posts are available. This allows us to explore the operations that are common to almost every blog application, retrieving article content from a database.
Now that you know a bit more about the dynamic web application and what you’re going to learn, it’s time to start creating a blogging application project to contain our example.
in this article shows how you can create a “Dynamic Blog” using the NPM Application Generator tool, which you can then populate with website-specific routes, views/render templates, and database calls using mongo cloud on Mlab. In this case, we’ll use the tool to create the framework for our sample blog application, to which we’ll add all the other code step by step needed by the blog. The creating site is extremely simple, requiring only that you invoke the generator on the command line interface with a new project name, optionally also specifying the site’s different template engine and CSS styles generator.
Firstly, you should install the generator tool site-wide using the Node package manager.
=> npm install express-generator -g
Which view engine should I use?
The Express Application Generator enables you to design various famous view/templating engines, including EJS, Hbs, Pug (Jade), Twig, and Vash, although it chooses Jade by default if you don’t specify a view option. Express itself can likewise an extensive number of other templating languages
a] Time to Probability:- If you already have experience with a templating language then it is likely they will be beneficial quicker utilizing that language. If not, then you should consider the relative expectation curve for candidate templating engines.
b] Popularity and activity:- Review the popularity of the performance and whether it has a functional network. It is important to be able to get support for the system when you have issues over the lifetime of the site.
c] Style:– Some template engines format utilize particular markup to show embedded substance inside “customary” HTML, while others develop the HTML utilizing an alternate language structure (for instance, utilizing space and square names). Execution/rendering time.
Creating the project
For our sample blog Application, we’re going to build, we’ll create a project named simple blog tutorial using the Pug, formerly known as “Jade” template library and no CSS stylesheet engine.
Firstly go to command prompt and create a project and then run the Express Application Generator in the command line prompt as shown:
=> express sampleblog –view=pug
Install NPM dependencies:
=> cd sampleblog && npm install
Run the app:
=> SET DEBUG=sampleblog:* & npm start
Running the architectural express website
At this point, we have a complete structure of Application. The site doesn’t actually do very much yet, but it’s worth running it to show how it works.
First, we install the NPM dependencies. the following command will fetch all the dependency packages listed in the application package.json file.
=> cd sampleblog
=> npm install
Then run the application :-
=> SET DEBUG=sampleblog:* & npm start
then load application on localhost. The generated application structure:
/sampleblog
app.js
/bin
www
package.json
/node_modules
/public
/images
/javascripts
/stylesheets
style.css
/routes
dashboard.js
users.js
/views
error.pug
dashboard.pug
layout.pug
Let’s now take a look at the Directory structure we just created.
The generated app structure, now that you have installed all dependencies, has the following file structure. The package.json file defines the application dependencies and other starter information. It also defines a startup script that will call the application entry point, the JavaScript files /bin/www. This sets up a portion of the application error dealing with and afterward stacks app.js. The application routes are stored in separate modules under the routes directory folder. The templates are stored under the /views directory folder.
what is package.json?
The package.json file defines all application dependencies and other declaration: The dependencies inside the express package and the package. In addition, we have the following some required packages that are useful in many web applications:
{
"name": "sampleblog",
"version": "0.0.0",
"private": true,
"scripts": {
"start": "node ./bin/www",
"devstart": "nodemon ./bin/www"
},
"dependencies": {
"body-parser": "~1.18.2",
"cookie-parser": "~1.4.3",
"express": "~4.16.2",
"debug": "~2.6.9",
"morgan": "~1.9.0",
"pug": "~2.0.0-rc.4",
"serve-favicon": "~2.4.5"
},
"devDependencies": {
"nodemon": "^1.14.11"
}
}
1] Body-parser: This parses the body part of an incoming HTTP request and makes it easier to read POST parameters.
2] Cookie-parser: it is used to parse the cookie header data and populate req.cookies provides cookie information.
3] Debug: A small node debugging utility used after node core’s debugging technique.
4] Morgan: it’s HTTP request logger middleware for node app.
The scripts section defines a “start” script for bootstrap the application, which is what we are invoking when we call NPM Start to start the application server. From the script definition, you can see that this actually starts the JavaScript file ./bin/www with node starter. It also defines a “Devstart” script for running application.
what is www file?
In node application /bin/www file is the entry point of application. The first thing this does is require() the “real” application entry point because of it import the express() application object.
/**
* Module dependencies.
*/
var app = require('../app');
line the require() is a global node function that is used to import modules with objects into the current file.
what is app.js ?
This file creates an express application object and set up the application with various configuration and middleware, and then exports the app from the main module. The following code shows just the parts of the file that create and export the app object to other controllers and routes, using the module.exports syntax.
var express = require('express');
var app = express();
...
module.exports = app;
Setup for view engine
First, we create the app object using our imported express module and then use it to set up the view engine template. There are two sections to Setting up the engine. First, we set the ‘views’ value to specify the directory where the templates will be stored in the Subfolders. At that point, we set the ‘view engine’ esteem to determine the layout library. in Express module provide different view engine templates. and our application we define pug view engine.
var app = express();
// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'pug');
setup for static files
In our application import 3rd party libraries, then we use the express.static middleware to get Express to serve all the static files inside the /public directory in the project root.
// other dependencies
app.use(express.static(path.join(__dirname, 'public')));
Setup route handling chain
we add our route-handling code to the request handling pipeline. The imported code will define specific routes path for the specific controller.
app.use('/', indexRouter);
app.use('/users', usersRouter);
How Routes works?
The route file /routes/dashboard.js is shown below. First, it loads the express module for Initialize the express**.**router object. At the Point, it indicates that object, and in Conclusion, sends out the switch from the module.
var express = require('express');
var router = express.Router();
/* GET users listing. */
router.get('/', function(req, res, next) {
res.send('respond data');
});
module.exports = router;
The route defines a callback that will be Call whenever an HTTP GET request with the correct pattern is detected. The matching pattern is the route specified when the module is imported (‘/dashboard’) and whatever is defined in this file (‘/’)
How to Routes works with views ?
The views templates are stored in the /views folder and are given the file extension .pug. The strategy Response.render() is utilized to render a specified layout along with the values of named factors passed in an object, and then send the result as a response. In the code below from **/**routes/dashboard.js you can perceive how that course renders a reaction utilizing the format “dashboard” passing the layout variable “UserName”.
/* GET page. */
router.get('/', function(req, res) {
res.render('dashboard', { title: 'Express' });
});
The corresponding template for the above route is given below dashboard.pug
extends layout
block content
h1= UserName
p Welcome to #{UserName}
Thanks for Reading Article! I hope this get’s you started app using Node and ExpressJs.
#node-js #express #mongodb #blog
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1580820420
How to Create a simple Blog using Mongodb, Node-js and Express
Introduction
In this tutorial articles, we will create a simple blog that blog visitor can read blog posts are available. This allows us to explore the operations that are common to almost every blog application, retrieving article content from a database.
Now that you know a bit more about the dynamic web application and what you’re going to learn, it’s time to start creating a blogging application project to contain our example.
in this article shows how you can create a “Dynamic Blog” using the NPM Application Generator tool, which you can then populate with website-specific routes, views/render templates, and database calls using mongo cloud on Mlab. In this case, we’ll use the tool to create the framework for our sample blog application, to which we’ll add all the other code step by step needed by the blog. The creating site is extremely simple, requiring only that you invoke the generator on the command line interface with a new project name, optionally also specifying the site’s different template engine and CSS styles generator.
Firstly, you should install the generator tool site-wide using the Node package manager.
=> npm install express-generator -g
Which view engine should I use?
The Express Application Generator enables you to design various famous view/templating engines, including EJS, Hbs, Pug (Jade), Twig, and Vash, although it chooses Jade by default if you don’t specify a view option. Express itself can likewise an extensive number of other templating languages
a] Time to Probability:- If you already have experience with a templating language then it is likely they will be beneficial quicker utilizing that language. If not, then you should consider the relative expectation curve for candidate templating engines.
b] Popularity and activity:- Review the popularity of the performance and whether it has a functional network. It is important to be able to get support for the system when you have issues over the lifetime of the site.
c] Style:– Some template engines format utilize particular markup to show embedded substance inside “customary” HTML, while others develop the HTML utilizing an alternate language structure (for instance, utilizing space and square names). Execution/rendering time.
Creating the project
For our sample blog Application, we’re going to build, we’ll create a project named simple blog tutorial using the Pug, formerly known as “Jade” template library and no CSS stylesheet engine.
Firstly go to command prompt and create a project and then run the Express Application Generator in the command line prompt as shown:
=> express sampleblog –view=pug
Install NPM dependencies:
=> cd sampleblog && npm install
Run the app:
=> SET DEBUG=sampleblog:* & npm start
Running the architectural express website
At this point, we have a complete structure of Application. The site doesn’t actually do very much yet, but it’s worth running it to show how it works.
First, we install the NPM dependencies. the following command will fetch all the dependency packages listed in the application package.json file.
=> cd sampleblog
=> npm install
Then run the application :-
=> SET DEBUG=sampleblog:* & npm start
then load application on localhost. The generated application structure:
/sampleblog
app.js
/bin
www
package.json
/node_modules
/public
/images
/javascripts
/stylesheets
style.css
/routes
dashboard.js
users.js
/views
error.pug
dashboard.pug
layout.pug
Let’s now take a look at the Directory structure we just created.
The generated app structure, now that you have installed all dependencies, has the following file structure. The package.json file defines the application dependencies and other starter information. It also defines a startup script that will call the application entry point, the JavaScript files /bin/www. This sets up a portion of the application error dealing with and afterward stacks app.js. The application routes are stored in separate modules under the routes directory folder. The templates are stored under the /views directory folder.
what is package.json?
The package.json file defines all application dependencies and other declaration: The dependencies inside the express package and the package. In addition, we have the following some required packages that are useful in many web applications:
{
"name": "sampleblog",
"version": "0.0.0",
"private": true,
"scripts": {
"start": "node ./bin/www",
"devstart": "nodemon ./bin/www"
},
"dependencies": {
"body-parser": "~1.18.2",
"cookie-parser": "~1.4.3",
"express": "~4.16.2",
"debug": "~2.6.9",
"morgan": "~1.9.0",
"pug": "~2.0.0-rc.4",
"serve-favicon": "~2.4.5"
},
"devDependencies": {
"nodemon": "^1.14.11"
}
}
1] Body-parser: This parses the body part of an incoming HTTP request and makes it easier to read POST parameters.
2] Cookie-parser: it is used to parse the cookie header data and populate req.cookies provides cookie information.
3] Debug: A small node debugging utility used after node core’s debugging technique.
4] Morgan: it’s HTTP request logger middleware for node app.
The scripts section defines a “start” script for bootstrap the application, which is what we are invoking when we call NPM Start to start the application server. From the script definition, you can see that this actually starts the JavaScript file ./bin/www with node starter. It also defines a “Devstart” script for running application.
what is www file?
In node application /bin/www file is the entry point of application. The first thing this does is require() the “real” application entry point because of it import the express() application object.
/**
* Module dependencies.
*/
var app = require('../app');
line the require() is a global node function that is used to import modules with objects into the current file.
what is app.js ?
This file creates an express application object and set up the application with various configuration and middleware, and then exports the app from the main module. The following code shows just the parts of the file that create and export the app object to other controllers and routes, using the module.exports syntax.
var express = require('express');
var app = express();
...
module.exports = app;
Setup for view engine
First, we create the app object using our imported express module and then use it to set up the view engine template. There are two sections to Setting up the engine. First, we set the ‘views’ value to specify the directory where the templates will be stored in the Subfolders. At that point, we set the ‘view engine’ esteem to determine the layout library. in Express module provide different view engine templates. and our application we define pug view engine.
var app = express();
// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'pug');
setup for static files
In our application import 3rd party libraries, then we use the express.static middleware to get Express to serve all the static files inside the /public directory in the project root.
// other dependencies
app.use(express.static(path.join(__dirname, 'public')));
Setup route handling chain
we add our route-handling code to the request handling pipeline. The imported code will define specific routes path for the specific controller.
app.use('/', indexRouter);
app.use('/users', usersRouter);
How Routes works?
The route file /routes/dashboard.js is shown below. First, it loads the express module for Initialize the express**.**router object. At the Point, it indicates that object, and in Conclusion, sends out the switch from the module.
var express = require('express');
var router = express.Router();
/* GET users listing. */
router.get('/', function(req, res, next) {
res.send('respond data');
});
module.exports = router;
The route defines a callback that will be Call whenever an HTTP GET request with the correct pattern is detected. The matching pattern is the route specified when the module is imported (‘/dashboard’) and whatever is defined in this file (‘/’)
How to Routes works with views ?
The views templates are stored in the /views folder and are given the file extension .pug. The strategy Response.render() is utilized to render a specified layout along with the values of named factors passed in an object, and then send the result as a response. In the code below from **/**routes/dashboard.js you can perceive how that course renders a reaction utilizing the format “dashboard” passing the layout variable “UserName”.
/* GET page. */
router.get('/', function(req, res) {
res.render('dashboard', { title: 'Express' });
});
The corresponding template for the above route is given below dashboard.pug
extends layout
block content
h1= UserName
p Welcome to #{UserName}
Thanks for Reading Article! I hope this get’s you started app using Node and ExpressJs.
#node-js #express #mongodb #blog
1622719015
Why use Node.js for Web Development? Benefits and Examples of Apps
Front-end web development has been overwhelmed by JavaScript highlights for quite a long time. Google, Facebook, Wikipedia, and most of all online pages use JS for customer side activities. As of late, it additionally made a shift to cross-platform mobile development as a main technology in React Native, Nativescript, Apache Cordova, and other crossover devices.
Throughout the most recent couple of years, Node.js moved to backend development as well. Designers need to utilize a similar tech stack for the whole web project without learning another language for server-side development. Node.js is a device that adjusts JS usefulness and syntax to the backend.
What is Node.js?
Node.js isn’t a language, or library, or system. It’s a runtime situation: commonly JavaScript needs a program to work, however Node.js makes appropriate settings for JS to run outside of the program. It’s based on a JavaScript V8 motor that can run in Chrome, different programs, or independently.
The extent of V8 is to change JS program situated code into machine code — so JS turns into a broadly useful language and can be perceived by servers. This is one of the advantages of utilizing Node.js in web application development: it expands the usefulness of JavaScript, permitting designers to coordinate the language with APIs, different languages, and outside libraries.
What Are the Advantages of Node.js Web Application Development?
Of late, organizations have been effectively changing from their backend tech stacks to Node.js. LinkedIn picked Node.js over Ruby on Rails since it took care of expanding responsibility better and decreased the quantity of servers by multiple times. PayPal and Netflix did something comparative, just they had a goal to change their design to microservices. We should investigate the motivations to pick Node.JS for web application development and when we are planning to hire node js developers.
Amazing Tech Stack for Web Development
The principal thing that makes Node.js a go-to environment for web development is its JavaScript legacy. It’s the most well known language right now with a great many free devices and a functioning local area. Node.js, because of its association with JS, immediately rose in ubiquity — presently it has in excess of 368 million downloads and a great many free tools in the bundle module.
Alongside prevalence, Node.js additionally acquired the fundamental JS benefits:
- quick execution and information preparing;
- exceptionally reusable code;
- the code is not difficult to learn, compose, read, and keep up;
- tremendous asset library, a huge number of free aides, and a functioning local area.
In addition, it’s a piece of a well known MEAN tech stack (the blend of MongoDB, Express.js, Angular, and Node.js — four tools that handle all vital parts of web application development).
Designers Can Utilize JavaScript for the Whole Undertaking
This is perhaps the most clear advantage of Node.js web application development. JavaScript is an unquestionable requirement for web development. Regardless of whether you construct a multi-page or single-page application, you need to know JS well. On the off chance that you are now OK with JavaScript, learning Node.js won’t be an issue. Grammar, fundamental usefulness, primary standards — every one of these things are comparable.
In the event that you have JS designers in your group, it will be simpler for them to learn JS-based Node than a totally new dialect. What’s more, the front-end and back-end codebase will be basically the same, simple to peruse, and keep up — in light of the fact that they are both JS-based.
A Quick Environment for Microservice Development
There’s another motivation behind why Node.js got famous so rapidly. The environment suits well the idea of microservice development (spilling stone monument usefulness into handfuls or many more modest administrations).
Microservices need to speak with one another rapidly — and Node.js is probably the quickest device in information handling. Among the fundamental Node.js benefits for programming development are its non-obstructing algorithms.
Node.js measures a few demands all at once without trusting that the first will be concluded. Many microservices can send messages to one another, and they will be gotten and addressed all the while.
Versatile Web Application Development
Node.js was worked in view of adaptability — its name really says it. The environment permits numerous hubs to run all the while and speak with one another. Here’s the reason Node.js adaptability is better than other web backend development arrangements.
Node.js has a module that is liable for load adjusting for each running CPU center. This is one of numerous Node.js module benefits: you can run various hubs all at once, and the environment will naturally adjust the responsibility.
Node.js permits even apportioning: you can part your application into various situations. You show various forms of the application to different clients, in light of their age, interests, area, language, and so on. This builds personalization and diminishes responsibility. Hub accomplishes this with kid measures — tasks that rapidly speak with one another and share a similar root.
What’s more, Node’s non-hindering solicitation handling framework adds to fast, letting applications measure a great many solicitations.
Control Stream Highlights
Numerous designers consider nonconcurrent to be one of the two impediments and benefits of Node.js web application development. In Node, at whatever point the capacity is executed, the code consequently sends a callback. As the quantity of capacities develops, so does the number of callbacks — and you end up in a circumstance known as the callback damnation.
In any case, Node.js offers an exit plan. You can utilize systems that will plan capacities and sort through callbacks. Systems will associate comparable capacities consequently — so you can track down an essential component via search or in an envelope. At that point, there’s no compelling reason to look through callbacks.
Final Words
So, these are some of the top benefits of Nodejs in web application development. This is how Nodejs is contributing a lot to the field of web application development.
I hope now you are totally aware of the whole process of how Nodejs is really important for your web project. If you are looking to hire a node js development company in India then I would suggest that you take a little consultancy too whenever you call.
Good Luck!
#node.js development company in india #node js development company #hire node js developers #hire node.js developers in india #node.js development services #node.js development
1616671994
Hire Dedicated Node.js Developers - Hire Node.js Developers
If you look at the backend technology used by today’s most popular apps there is one thing you would find common among them and that is the use of NodeJS Framework. Yes, the NodeJS framework is that effective and successful.
If you wish to have a strong backend for efficient app performance then have NodeJS at the backend.
WebClues Infotech offers different levels of experienced and expert professionals for your app development needs. So hire a dedicated NodeJS developer from WebClues Infotech with your experience requirement and expertise.
So what are you waiting for? Get your app developed with strong performance parameters from WebClues Infotech
For inquiry click here: https://www.webcluesinfotech.com/hire-nodejs-developer/
Book Free Interview: https://bit.ly/3dDShFg
#hire dedicated node.js developers #hire node.js developers #hire top dedicated node.js developers #hire node.js developers in usa & india #hire node js development company #hire the best node.js developers & programmers
1599336240
Node.js Express MongoDB Tutorial
Express is a Node.js web application framework that provides a robust set of features to develop rich web applications. Today we are going to deep dive in Node.js Express MongoDB Tutorial. If you want to know what is Node.js and why we use in server side technology, then please read my article Why we use Node js as a server side technology
Node.js Express MongoDB Tutorial** will use the NoSQL database like MongoDB to store the form values in the database, Express as the Web framework and Node.js as a platform. We will use NPM as a package manager for our dependencies and Git for version control for our code.
Note:_ If you do not have a Node.js install, then please go to Node.js official website and download the package according to your OS._
Step 1: Initialize package.json file.
Create a project folder and go to that directory and put the following command in your terminal.
npm init
After answering all the data, in your root folder package.json file will be created. This file is a config file for our dependencies, so when we download new packages from Node Package Manager, package.json file will be automatically updated.
#node.js #express #node.js express mongodb #mongodb
1616839211
Node JS Development Company| Node JS Web Developers-SISGAIN
Top organizations and start-ups hire Node.js developers from SISGAIN for their strategic software development projects in Illinois, USA. On the off chance that you are searching for a first rate innovation to assemble a constant Node.js web application development or a module, Node.js applications are the most appropriate alternative to pick. As Leading Node.js development company, we leverage our profound information on its segments and convey solutions that bring noteworthy business results. For more information email us at hello@sisgain.com
#node.js development services #hire node.js developers #node.js web application development #node.js development company #node js application