NodeJS Webhooks

npm install node-webhooks --save 

// Initialize WebHooks.

var WebHooks = require('node-webhooks')

// Initialize webhooks from database

var webHooks = new WebHooks({

    db: './webHooksDB.json', // json file that store webhook URLs

    httpSuccessCodes: [200, 201, 202, 203, 204],

})

// Alternatively, initialize webhooks with object

webHooks = new WebHooks({

    db: {"addPost": ["http://localhost:9100/posts"]},

})

// sync instantation - add a new webhook called 'name1'

webHooks.add('name1', 'http://127.0.0.1:9000/prova/other_url').then(function(){

    // done

}).catch(function(err){

    console.log(err)

})

// add another webHook

webHooks.add('name2', 'http://127.0.0.1:9000/prova2/').then(function(){

    // done

}).catch(function(err){

    console.log(err)

});

// remove a single url attached to the given shortname

// webHooks.remove('name3', 'http://127.0.0.1:9000/query/').catch(function(err){console.error(err);})

// if no url is provided, remove all the urls attached to the given name

// webHooks.remove('name3').catch(function(err){console.error(err);})

// trigger a specific webHook

webHooks.trigger('name1', {data: 123})

webHooks.trigger('name2', {data: 123456}, {header: 'header'}) // payload will be sent as POST request with JSON body (Content-Type: application/json) and custom header

Sever restart putty Node.js

how to server restart putty
Sever restart putty Node.js Server restart using putty for Node.js. Go to specific path and run the below mentioned script

forever restart server.js

NodeJS Setup in HTTP Server or Local Server

NodeJS Setup in HTTP Server / Local Server Step 1 - Download and Install NodeJS

download the latest stable release of NodeJS from https://nodejs.org

Step 2 - Install http-server package from npm Open command prompt / command window and enter the following

npm install -g http-server

Step 3 - Start web server from the directory

cd \projects\angular-form-example

Step 4 - Start server with following command:

http-server

You should see something like D:\project\angular-form-example>http-server Starting up http-server, serving ./ Available on: http://http://70.35.195.158:8080 http://127.0.0.1:8080 Hit CTRL-C to stop the server Open your browser and enter the following address http://localhost:8080

Mongo DB connect with NodeJS

To start Mongodb:

1.create folder named( data ) and include that folder below.

2.D:\Mongodb\bin> mongod.exe --dbpath “D:\data”

Another cmd

3. mongo.exe

Function:

1..To create database:

use DATABASE_NAME

2..insert() 

>db.COLLECTION_NAME.insert(document)

3..Update() 

>db.COLLECTION_NAME.update(SELECTION_CRITERIA, UPDATED_DATA)

4..remove() 

>db.COLLECTION_NAME.remove(DELLETION_CRITTERIA)

5..To check data

>db.dbname.find().pretty()

To run Nodejs:

Go to the folder path and

1. npm install

2. npm i -g @angular/cli

3. ng serve or npm start or npm run dev

Node JS Pagination using in Mean Stack ( Node js mongodb pagination )

Nodejs Pagination

Ejs file[Html page] :

Node js mongodb pagination

     <% if (pageCount > 1) { %>

      <ul class="pagination">

<% if (currentPage > 1) { %>

                                <li><a href="/userdetails?page=1">&laquo;</a></li>

                <% } %>

                <% var i = 1;

                if (currentPage > 5) {

                                i = +currentPage - 4;

                } %>

                <% if (i !== 1) { %>

                                <li class="disabled"><a href="#">...</a></li>

                <% } %>

<% for (var j = i; j<=pageCount; j++) { %>

                <% if (currentPage == j) { %>

                                <li class="active"><span><%= j %> <span class="sr-only">(current)</span></span></li>

                <% } else { %>

                                <li><a href="/userdetails?page=<%= j %>"><%= j %></a></li>

                <% } %>

                <% if (j == (+currentPage + 4)) { %>

                                <li class="disabled"><a href="#">...</a></li>

                <% break; } %>

                <% } %>

<% if (currentPage != pageCount) { %>

                                <li><a href="/userdetails?page=<%= pageCount %>">&raquo;</a></li>

                <% } %>

   </ul>  <% } %>

    Routes.js :

         

               var totalRec = 0,

                pageSize  = 5,

                pageCount = 0;

                var currentPage = 1;

                app.get('/userdetails',  function (req, res) {

                                Register.find({}).exec(function(err, Register) {

                                   if (err) throw err;

                                                totalRec      = Register.length;

                                                pageCount     =  Math.ceil(totalRec /  pageSize);

                                                if (typeof req.query.page !== 'undefined') {

                                                                currentPage = req.query.page;

                                                }

                                                var start = 0;

                                                if(currentPage >1){

                                                                start = (currentPage - 1) * pageSize;

                                                }

                                                var data = [];

                                                for(var i=start;i<start+pageSize;i++) {

                                                                if(i < totalRec){

                                                                                data.push(Register[i]);

                                                                } else {

                                                                                break;

                                                                }

                                                }

                            res.render('userdetails.ejs', { "Register": Register, data:data, pageSize: pageSize, pageCount: pageCount,currentPage: currentPage});

                                   });            

                    });