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Node.js® is a JavaScript runtime built on Chrome's V8 JavaScript engine. Node.js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient. Node.js' package ecosystem, npm, is the largest ecosystem of open source libraries in the world.

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2016 clustered environment . Nodes A crashed after a Ms path so it was rebuilt from an image of node B. I did make sure my ip's are correct.  Now im not able to Ping the private Network. Able to Ping one way only. Can ping from no B to node a. Cannot ping from node a two node be. This is after a crash where I had to rebuild node a from an image of node be. I have reset all settings but this one still has me confused any ideas.
Pings x.x.0.2 on nobe b to node a x.x.0.3 works.
Not working
Ping x.x.0.3  to x.x.0.2
Even isolated ping by typing.
Ping X.x.0.3 -S x.x.0.2
Still not pinging private network (heartbeat)
0
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Hi,

In node red, while i insert the - timestamp datatype its work perfectly. while try to select data with the time stamp, its display different time.

Data insert in mariadb ----> 2018-09-19 23:47:26

While select data
if (Device > 0)
    msg.topic ="Select DeviceId, Line, outPIN, count,Time FROM mytab LIMIT 1";

return msg;

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While try pull data out of mariadb the data timestamp show --> 2018-09-19 00:20:00
0
Hi I am selecting data from mysql database in node red: -

my database value are as follows:-
dbtime.png
Code in node red as follows: -
 msg.topic ="Select DeviceId, Line, outPIN, count,Time FROM mytab LIMIT 1"

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In debug node i do get the time in different format and unable to store in different location of database.

9/17/2018, 4:59:29 PMnode: 4f250b1.97196f4
INSERT INTO mytable1 (DeviceId,Line,outPIN,count,Time) VALUES (?,?,?,?,?) : msg.payload : array[5]
[ 2, 1, "7", 1, "2018-09-16T13:28:24.000Z" ]
9/17/2018, 4:59:29 PMnode: d00874f1.76f388
msg : error
"Error: ER_TRUNCATED_WRONG_VALUE: Incorrect datetime value: '2018-09-16T13:28:24.000Z' for column 'Time' at row 1"

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How i can format the time back to normal 'yyyy-mm-dd hh:mm:ss'
0
Hi,

I wanted to develop print solution for my web app : Web app to Desktop print appl using microsoft stack.

when someone press print button on web app, web app may send something like push notification as COMMAND to desktop application (User specific) and upon receipt of command Desktop print app can print the documents. If case of failure Desktop Print Application can send back information to web app about print failure.

To send push notification from web app to Desktop app,
can i use SignalR for sending user specific push notification ?

Please suggest :

1.Am i going in right direction.Whether the industry standards use same process like Google Print or PrintNode.

If not what technology/Process i can use for such application.
Initialy developing for one customer but need for multiple users.

regards,
0
Connection Error: No Mongos proxy available.

Environment: Node.js, MongoDB, Mongoose

Start.js
const mongoose = require('mongoose');


mongoose.connect(process.env.DATABASE,  { useNewUrlParser: true })
mongoose.Promise = global.Promise;
mongoose.connection
  .on('connected', () => {
    console.log(`Mongoose connection open on ${process.env.DATABASE}`);
  })
  .on('error', (err) => {
    console.log(`Connection error: ${err.message}`);
  });

.env file

DATABASE=mongodb://username:DBpassword@player-shard-00-00-1cmur.mongodb.net:27017,player-shard-00-01-1cmur.mongodb.net:27017,player-shard-00-02-1cmur.mongodb.net:27017
0
Error message:  Node 'server' failed to form a cluster. This was because the witness was not accessible. Please ensure that the witness resource is online and available.

The virtual server is up and running and doesn't seem to have any problems but it will not become a part of the cluster.   The server node shows as being down and both the ISCSI connection and Public connections are down
0
Any Zurb Foundation users on here? I am getting the below errors when opening Foundation.

Version info:

Git = v2.13.2

Node = v7.1.0

NPM = v3.10.10

Foundation-CLI = v2.2.5

----------------------------------------------------

1)      I open the console/CMD Prompt
2)      Try to run:
-      foundation –v (to check Foundation CLI version)
-      -or -
-      foundation new (to start a new project)
3)      Get the error


SyntaxError: Unexpected token function

    at Object.exports.runInThisContext(vm.js:78:16)

    at Module._compile (module.js:545:28)

    at Object.Module._extensions..js(module.js:582:10)

    at Module.load (module.js:490:32)

    at tryModuleLoad (module.js:449:12)

    at Function.Module._load(module.js:441:3)

    at Module.require (module.js:500:17)

    at require (internal/module.js:20:19)

    at Object.<anonymous>(C:\Users\*****\AppData\Roaming\npm\node_modules\foundation-cli\node_modules\terminal-kit\lib\termkit.js:53:26)

    at Module._compile (module.js:573:32)

---------------------------------------

In PATH = Git then NPM then Nodejs

‘foundation –v’  -or- ‘foundation new’ resultsin:

C:\Users\*****\AppData\Roaming\npm\node_modules\foundation-cli\node_modules\terminal-kit\lib\detectTerminal.js:179

exports.getParentTerminalInfo = async functiongetParentTerminalInfo( callback ) {

                                                                     ^^^^^^^^
0
I want to import starting from the root folder, not go several folders down.
How do I do that?

I come across this issue while trying to import a guestbook (like it's 1999) script for my homepage.

import MyGuestbook from '../../components/MyGuestbook.vue'

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compiles.

import MyGuestbook from '/src/components/MyGuestbook.vue'

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doesn't compile.

GuestBookPage.vue

    <template>
    <div>
        <MyGuestbook />
    </div>
    </template>
    
    <script>
    import MyGuestbook from '../../components/MyGuestbook.vue'
    
    export default {
      name: 'GuestbookPage',
      components: {
        MyGuestbook
      }
    };
    </script>

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MyGuestbook.vue

     
<template>
      </div>
      </div>
    </template>
    
    <script src="non-editable-comments-v0.1.0.js"></script>
    <script>
      window.safeComments('CommentTitle', 'CommentTargetID');
    
      export default {
        name: 'MyGuestbook'
      };
    </script>

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I understand that I need to use webpack, but my project uses neutrinojs/vue (Recommended for the type of project) in combination with webpack. I'm not familiar with either of them. So far adding a _webpack.config.js_ and changing the import line to `import MyGuestbook from '@/components/MyGuestbook.vue'` has not worked.

    module.exports = {
      resolve: {
        extensions: [
          '.js', '.vue', '.json'
        ],
        alias: {
          '@': resolve('src'),
          '@root': resolve('.')
        }
      }
    };

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Nor has editing _.neutrinorc.js_

    module.exports = {
      use: [
        '@neutrinojs/standardjs',
        [
          '@neutrinojs/vue',
          {
            html: {
              title: 'MySite'
            }
          }
        ],
        '@neutrinojs/jest',
        (neutrino) => {
    	  neutrino.config.resolve.extensions
    	    .add('.js')
    	    .add('.json')
    	    .add('.vue');
    		
          neutrino.config.resolve.alias
          .set('@', 'src')
          .set('@root', '.');
    	}
      ]
    };

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the error:


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0
I am trying to retrieve the average value from a PostgreSQL database using a Sequelize ORM with React on the front end and running Node.js server.  My 'GET' request on the Node side retrieves all of the data from the PostgreSQL database so I know everything is wired up with React using the following code:

module.exports = function (db, app, bodyParser) {


    app.use(bodyParser.json());
    app.use(bodyParser.urlencoded({ extended: false }));

    app.get('/survey_init', function(req, res, next) {
        db.answers.findAll({})
        .then(function (data) {

            res.send(data);
              })
          .catch(function (err) {
            return next(err);
          })
        });
        
    }

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However, when I attempt to run an average on a specific column called 'conf_one' in my PostgreSQL database I get an error.  I will list the modified code (modified from code above) that is throwing the error here:

module.exports = function (db, app, bodyParser) {


    app.use(bodyParser.json());
    app.use(bodyParser.urlencoded({ extended: false }));

    app.get('/survey_init', function(req, res, next) {
        db.answers.findAll({
          attributes: ['conf_one', [models.Sequelize.fn('AVG', models.Sequelize.col('conf_one')), 'conf_one_avg']]
        })
        .then(function (data) {

            res.send(data);
              })
          .catch(function (err) {
            return next(err);
          })
        });
        
    }

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The error that I get with the code is the following error and I do not get the result of an average calculation.


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0
Windows Cluster 2016 error , Node 1 unavailable after a restart (after installing Patch 1 for SQL cluster.) Pinged the IP and the IP is available , able to RDP to the server. Also all disk are up and running only issue is with NODE1 network its showing unavailable.
Please Advise.
0
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Hi,

I have a task in AWS that is started by ECS. I have developed a Cloudformation script that creates the ECS cluster, service, task definitions and containers.

The EC2 instances (2 to begin with) are initiated and are healthy. ECS then creates the tasks on each EC2 instance. However, have 1 minute, the tasks are stopped by ECS and it tries to recreate it. I presume this is something to do with the scheduler on AWS and not getting a healthy check back.

It is a node app running on port 300 which is mapped to the container. If I login to the EC2 instance and do a simple curl 127.0.0.1:32XXX (host port) then I get "no reply from server". Ok so it is something wrong with the image or container.

However, if I launch my own container of the same image publishing the ports ("docker run -d -p 32810:3000 <image> yarn start") and then do curl 127.0.0.1:32810 then I get a response from the server.

I cannot figure out how to debug this as there are no logs with any errors. Anyway..(I created the one on port 32810) the image is the same in both. I can only figure it is something to do with what the ECS agent does when it boots a task.

48ccad832ad2        <image>   "yarn start"        9 seconds ago       Up 8 seconds        0.0.0.0:32831->3000/tcp   ecs-test-InterfaceCogTaskDefinition-1UE2FONT2RQU3-1-InterfaceCog-f092fec2d9d1e8a90300
36016de55b81        <image>   "yarn start"        23 minutes ago      Up 23 minutes       0.0.0.0:32810->3000/tcp   practical_banach

0
Hello expert,

In UML (Unified Modeling Language) Activity Diagrams there are elements called fork
and join nodes. They are simply a black lozenge shapes  (see attached GIF) where several
parallel process merge (join) or split (fork).
This makes it necessary to have several arrows point to the fork or join node.
The node is created with a rounded rectangle.

The problem is the arrows only want to point to the rounded rectangle at the vertical and
horizontal mid points of the rounded rectangle. But the process arrows coming into the
join or fork could be a half dozen on each side.

Is there a way to make the fork or join node look like a comb on each side?
Join_node.jpg
0
I know there's a ton of questions around date/time storage and formatting, but I'm struggling to get the right approach. My app is a Node.js app with Express using mongoose with a MongoDB backend. I'm using moment.js to format my date/times.

The schema in question looks like:

const stateSchema = new mongoose.Schema({
  changed: {
    type: Date,
    default: new Date()
  }
});

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Based on the docs, I was expecting the date to be stored in UTC by default, but instead I see this:
changed: 2018-08-15 17:26:14.499

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I'm displaying the date/time with something like (pug):

p= `Changed: ${moment(state.changed).format('MMMM Do YYYY, h:mm:ss a')}`

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On localhost, the app shows "August 15th 2018, 5:26:14 pm" but on the hosted Heroku app I get "August 15th 2018, 10:26:14 pm." I am expecting "August 15th 2018, 5:26:14 pm" because I'm opening the Heroku app in the same timezone, but it looks like it's giving me the server timezone.

What should I do to make sure the date/time shows up in the client's local timezone?
0
I have a 2 node DAG Exchange 2013 CU19.
I am trying to delete any email older than 1/1/2016 for a specific user, but no matter what I do, I get nothing from searchquery filtering.
I Have confirmed Roll group Membership for Discovery Management and Mailbox Import Export.
I tried every format of double and single quotes for the date, and could not find anything.
I then tried to remove something from my mailbox, and get the same thing.
I sent me an email with subject test, and can not find it either.

I have tried:
search-mailbox -identity ttaylor -searchquery subject:test -estimatresulteonly
search-mailbox ttaylor -searcquery subject:test -estiamateresultonly
search-mailbox -identity ttaylor -searchquery "subject:test" -estimatresulteonly
search-mailbox ttaylor -searcquery "subject:test" -estiamateresultonly

I always get the same output
RunspaceId       : 304008d0-fa23-40d9-8867-d6ea567d5b9c
Identity         : Domain/ou/Tim Taylor
TargetMailbox    :
Success          : False
TargetFolder     :
ResultItemsCount : 0
ResultItemsSize  : 0 B (0 bytes)

Any suggestions
0
I had this question after viewing Change a specific key value in app.config file with another value..

i have  a config file as below
<meeServices>
  <edmServers>
    <server name="EDMServer" description="EDMServer" username="" password="" integratedSecurity="true" />
  </edmServers>
  <rdmServers>
    <server name="EDMServer" description="EDMServer" username="" password="" integratedSecurity="true" />
  </rdmServers>
  <settings>
    <add name="ExposureSource" value="path" />
    <add name="DomainDatabase" value="Server=HeadNode;Initial Catalog=RMS_MEE_Data;Integrated Security=True;" />
    <add name="ResultsDatabase" value="Server=HeadNode;Initial Catalog=RMS_MEE_Results;Integrated Security=True;" />
    <add name="JobManagerService" value="url" />
    <add name="licensecode" value="code" />
    <add name="WhiteListedIPAddresses" value="*" />
  </settings>
</meeServices>

 in settings , i want to change the name which contains licensecode to newcode. how do i do this.

$ConfigFile = 'C:\Users\psman\Downloads\dev_qa.config'
## XML Node names and Attributes are CaSe SeNsItIvE!
$xml = [xml](Get-Content -Path $ConfigFile)

$xml.SelectSingleNode("meeservices/settings/add[@name='licensecode']").SetAttribute("name", "data1")

$xml.Save($ConfigFile)
0
I have a Button within a react component that has five values tied to the "Survey" component state.  Within the button I have a property called "triggerSurveyUpdate" that when the user clicks the button it triggers the property in parent component App so that I can change conditional rendering with the App component.  Also when the user clicks the button I want to call a function "handleClick" which in turn calls a function named "surveysIn". "surveyIn" in turn then does an axios post to post  my values from the 'Survey' component to my Node back end. The problem is that if I put both "this.props.triggerSurveyUpdate" and "this.handleClick.bind(this)" within the Button tag then the first "this.props.triggerSurveyUpdate" gets called but then "this.handleClick.bind(this) does not fire.  If I put both "this.props.triggerSurveyUpdate and "this.handleClick.bind(this)" within the handleClick(e) function then the "this.props.triggerSurveyUpdate" does not fire.  How can do I get react to fire both "this.props.triggerSurveyUpdate and "surveysIn" such that I am able to post values from the "Survey" component state to my back end and then also trigger the property "this.props.triggerSurveyUpdate" so that I can do my conditional rendering in my "App" component.  Below is my code for my Survey component.

import React, { Component } from 'react';
import {Slider} from 'primereact/components/slider/Slider';
import {Button} from 'primereact/components/button/Button';
import surveysIn 

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0
HEllo,

I have an xml wihich i am try to extract data from.  It looks like this:

declare @xmlData xml = '
<BPSD-registret><Measurement2018>
<naza_bpsd><CarePlan>Hi</CarePlan>'+
  '<Actions>'+
    '<Current>'+
      '<Action>'+
        '<id>124</id>'+
        '<msr_id>405397</msr_id>'+
        '<activity>qdq</activity>'+
        '<when>d</when>'+
        '<where>qdw</where>'+
        '<how>dsf</how>'+
        '<whom>sdfsdf</whom>'+
        '<duration>sdfsdf</duration>'+
        '<estimations>'+
        '<estimation>2</estimation>'+
        '</estimations>'+
        '<measures/>'+
      '</Action>'+
      '<Action>'+
        '<id>125</id>'+
        '<msr_id>405397</msr_id>'+
        '<activity>Aaaa</activity>'+
        '<when>jklj</when>'+
        '<where>lk</where>'+
        '<how>jlk</how>'+
        '<whom>j</whom>'+
        '<duration>lkj</duration>'+
        '<estimations>'+
          '<estimation>1</estimation>'+
        '</estimations>'+
        '<measures>'+
          '<measure>1</measure>'+
          '<measure>2</measure>'+
          '<measure>3</measure>'+
        '</measures>'+
      '</Action>'+
    '</Current>'+
    '<Previous/>'+
  '</Actions>'+
'</naza_bpsd>'+
'</Measurement2018></BPSD-registret>' ;

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I can extract and save the content of each <action> node using the following code:

insert into BPSD_MeasurementActions
select
a.value('(activity)[1]', 'nvarchar(500)' ) as act_Activity,
a.value('(when)[1]', 'nvarchar(500)' ) as act_When,
a.value('(where)[1]', 'nvarchar(500)' ) as act_Where,
a.value('(how)[1]', 'nvarchar(500)' ) as act_How,
a.value('(whom)[1]', 'nvarchar(500)' ) as act_With,
a.value('(duration)[1]', 'nvarchar(500)' ) as act_HowLong
from @xmlData.nodes('/BPSD-registret/Measurement2018/naza_bpsd/Actions/Current/Action') Actions(a)

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The table BPSD_MeasurementActions has an identity column called Id (Integer).  

The problem is that the node <measures> has now been added to the xml.  I need to save the values of each <measure> node.   Therefore there is a one to many relationship with the <action> node and i need to save these values in a details table.  The value of Id from BPSD_MeasurementActions will be the foreign key.

Any sugestions on how i can traverse this xml and do the appropriate insertions?
0
Why use AngularJS instead of NodeJs

I would like to know why you should use AngularJS instead of NodeJS seeing that NodeJS can  fetch the Data from the Database server and present it to end user browser. I have seen some AngularJs videos where they use arrays and some code to present data on the browser, I have not seen any example where the Angular connect to the Database...
I thought probably NodeJs can do the same thing Angular does, with easier code.

Reading online, I see Angular is described as Framework ,whereas NodeJs is a Library...but do they achieve the same thing ?

Thank you
0
Hi

After researching heavily on why the delete query was failing in MS Access FE/SQl Server BE over the net and reading other IT books, it seems like the foreign key is cantered on the issues below:
INSERT and UPDATE Specification Category
I expanded the node to show information for the Delete Rule and the Update Rule for the relationship.
Delete Rule
It says specify what happens if a user tries to delete a row with data that is involved in a foreign key relationship:
•      No Action An error message tells the user that the deletion is not allowed and the DELETE is rolled back.
•      Cascade Deletes all rows containing data involved in the foreign key relationship. Do not specify CASCADE if the table will be included in a merge publication that uses logical records.
•      Set Null Sets the value to null if all foreign key columns for the table can accept null values.
•      Set Default Sets the value to the default value defined for the column if all foreign key columns for the table have defaults defined for them.
Update Rule
It says specify what occurs if a user tries to update a row with data that is involved in a foreign key relationship:
•      No Action An error message tells the user that the update is not allowed and the UPDATE is rolled back.
•      Cascade Updates all rows that contain data involved in the foreign key relationship. Do not specify CASCADE if the table will be included in a merge publication that uses logical records.
•      Set Null Sets the value to null if all …
0
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Guys,

I need Help i am trying to add my failed Exchange Server 2010 to a DAG but when i ran the command in the image and getting the error. Please for your assistance.Adding-to-Cluster.JPG
0
Hello,
I am creating a basic user authentication using nodejs, express.js and Passport.js.
I follow this example and it kind of works for me:
https://github.com/passport/express-4.x-local-example/blob/master/server.js

BUT, I would like to modify this demo to not have routes and not a template engine (ejs)

I have a folder with a bunch of static html files I would like to protect.
admin/
         /login.html
         /page1.html
         /page2.html
         /page3.html

I would like to password protect access to all html file under admin using basic authentication, but without routes.

In other words, I would like to access wepage.com/page2.html or any other html page and be redirected to login page, after logging in, I would like to be redirected back to page2.html and after that I could access the rest of the html pages without having to login. wepage.com/page4.html, wepage.com/page3.html, etc

The reason I don't want to have routes is because new html pages are added all the time and I don't want to keep creating routes for new ones or remove routes when deleting html pages.
Also, I don't really need a template engine since my pages are static html and I would like people to access the html directly. wepage.com/page1.html

The only requirements I have is nodejs, express.js and Passport.js.

Can someone please guide me or point me to an example to accomplish this?

Thanks
EMimi
0
So i have a user schema like this:

var user_schema = new Schema({
   username:{type:String,required: true, unique : true, trim: true},
   college:{type:String,required: true},
   password:{type:String,required: true, trim: true},
   email:{type:String,required: true, unique : true, trim: true},
   phone:{type:Number,required: true, unique : true, trim: true},
   dp:{type:String},
   tag:{type:String},
   description:{type:String},
   friends:[{type:String}],
   pending:[{type:String}],
   skills:{type:String},
   bucket:[{type:String}]
  });

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and my objective is, to search the all the documents in the collection to get people based on the following conditions:

1. They should not be in the users' "friends" array.
2. They should not be in the users' "pending" array.
3. They should have the same "tag" (a string value) as the user.

So, basically I have to compare the users' fields ("friends","pending" and "tags"), with fields of all documents in the whole collection.

How do I do it, using mongoose (nodejs mongodb library)
0
I have to initialize an array to [](empty array) and then push user chose "tags" into it. This is my schema:

 var user_schema = new Schema({
   username:{type:String,required: true, unique : true, trim: true},
   college:{type:String,required: true},
   password:{type:String,required: true, trim: true},
   email:{type:String,required: true, unique : true, trim: true},
   phone:{type:Number,required: true, unique : true, trim: true},
   dp:{type:String},
   tags:[{type:String}],
   description:{type:String},
   skills:{type:String},
   bucket:[{type:String}]
 }); 

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` and i have to initialize "tags" to [] and push user string values (user entered/chosen) every time the request is made to the API call.

I am using this line of code:

 stu_user.findOneAndUpdate(
   { _id: req.decoded.id },
   { $set:{tags:[]},$push: { tags: 'some chosen string'  } },
  function (error, success) {
         if (error) {
            console.log(error);
        } else {
            console.log(success);
        }
    });

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But it's not working.
0
I'm a complete beginner so I may have made some stupid mistakes. I made this script with x-ray to scrape user's phone number pictures from different website pages. The script was working very well until it reaches a page where the user didn't put his number in the page and the script stops.

How can I make it continue to the next page even if the phone number doesn't exist? and is there a way to make the script save the pictures directly to my computer instead of giving me the links?
 const Xray = require('x-ray');
const requesst = require('request');
const fs = require('fs');

const xray = Xray()

xray('https://www.marocannonces.com/categorie/350/Appareils-photos,-caméscopes/annonce/6503723/Nikon-D40x-objectif-18-135mm.html', 'div.infoannonce', [{
	numero: '#phone_number img@src',
	nom: '.infoannonce dd',
}])

.paginate('a.next_ad_link@href')
.write('results.json'); 

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i'm beginner to Node JS and javascript. Now everybody is saying to learn Node JS and javascript to develop a fastest, scalable and very good web application.

I thought of developing via Zk or Vaadin framework and experts says Node Js and javascript is far better than Zk or Vaadin

Could someone help with the thoughts and recommendation of which one to go and which one would be fast, reliable and scalable?

Like word press plugins, zk and vaadin components, Do we have a best java script framework which has huge components to integrate and create a beautiful and fastest responsive web app?

Thanks.
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Node.js® is a JavaScript runtime built on Chrome's V8 JavaScript engine. Node.js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient. Node.js' package ecosystem, npm, is the largest ecosystem of open source libraries in the world.

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