Develop Reference

mongodb npm preventing application to run on www, yet runs on localhost

I have this node.js accounts app that I'm trying to implement a mongoDB database onto, but it seems to have errors when I upload it to cpanel. My mongoDB url is in this format: mongodb+srv://:#. After some experimenting, turning the Node.js version to ^14 caused errors to stop, but the app still wouldn't run (going to the url reslted in a 503 error, this is the current state of the server).
github: https://github.com/codingtuba/accounts.aimedtuba/tree/mongodb
before mongo DB: https://github.com/codingtuba/accounts.aimedtuba

MongoDB and Heroku Deployment

Alright stuck here. This app - https://budget-vacation-offline.herokuapp.com/ .
I have added my environment variables to Heroku as well. There is an error in the console too regarding the mongo network. What am I missing? Happy to link the repository if needed. This is my error locally.
App running on port 7894!
(node:1177) UnhandledPromiseRejectionWarning: MongoNetworkError: failed to connect to server [localhost:27017] on first connect [Error: connect ECONNREFUSED 127.0.0.1:27017

The error mean that your app need to connect to an instance of mongodb, which not available on the address you set(localhost). So to fix the error you need to provide the correct url to connect.
To get a mongodb instance you can host your own mongodb server or use online mongodb service such as mongodb official service Atlas.
Previously, there is exist an add-on for mongodb mLab on heroku that you can use but it seem that it's has been discontinued.

Can't deploy todos; Failed to remove container (todos-frontend)

First time with linux and meteor up, so sorry if there's a stupid mistake. I try to deploy the meteor example app todos with mupx, and followed the instructions from the readme, but I'm getting the following mistake. (I'm using Ubuntu 14.04 LTS Server ). Thanks for help.
Configuration file : mup.json
Settings file : settings.json
“ Checkout Kadira!
It's the best way to monitor performance of your app.
Visit: https://kadira.io/mup ”
Meteor app path : /home/jan/todos
Using buildOptions : {}
Currently, it is only possible to build iOS apps on an OS X system.
Started TaskList: Deploy app 'todos' (linux)
[h2544161.stratoserver.net] - Uploading bundle
[h2544161.stratoserver.net] - Uploading bundle: SUCCESS
[h2544161.stratoserver.net] - Sending environment variables
[h2544161.stratoserver.net] - Sending environment variables: SUCCESS
[h2544161.stratoserver.net] - Initializing start script
[h2544161.stratoserver.net] - Initializing start script: SUCCESS
[h2544161.stratoserver.net] - Invoking deployment process
Invoking deployment process: FAILED
-----------------------------------STDERR-----------------------------------
Failed to remove container (todos-frontend): Error response from daemon: No such container: todos-frontend
docker: Error response from daemon: failed to create endpoint todos on network bridge: Error starting userland proxy: listen tcp 0.0.0.0:80: bind: address already in use.
-----------------------------------STDOUT-----------------------------------
todos
base: Pulling from meteorhacks/meteord
518dc1482465: Already exists
a3ed95caeb02: Already exists
a3ed95caeb02: Already exists
a3ed95caeb02: Already exists
537c534356b6: Already exists
b65a0e1e554b: Already exists
a3ed95caeb02: Already exists
a3ed95caeb02: Already exists
Digest: sha256:b5a4f6efa98e4070792ed36d33b14385a28e6ceda691a492ee5b9f2431b1515a
Status: Image is up to date for meteorhacks/meteord:base
d6d192579495851d5817288ff89abb69512562d7c2a7075f965484e64583c61b

Failed to remove container (todos-frontend): Error response from daemon: No such container: todos-frontend
docker: Error response from daemon: failed to create endpoint todos on network bridge: Bind for 0.0.0.0:80 failed: port is already allocated.
Just had the same issue,
finally deployed after changing file port number to an unused port in my-deployment mup.json somehow docker service could release ports automatically when it wants. I've used 80, 8000, 8001 so far but I haven't successfully deployed to the same port twice, but reading
credit to this
It seems that different deployments may conflict each other pretty easily. I have no resolution for this.

Mongodb Not connecting in Node js

In Node js using mongodb for saving user chat and users. All the work is done on local. Mongodb work properly but today not connected and return following error.
{ [MongoError: connect ECONNREFUSED] name: 'MongoError', message: 'connect ECONNREFUSED'
and my code is

Sounds like mongod server isn't running. The mongod command won't work if your MongoDB installation doesn't have rights outside the core mongo directory. This is common on Windows installations, especially.
Try changing your working directory in your terminal to your Mongo installation directory. On a Windows machine, e.g. cd C:\Program Files\Mongo then run mongod --dbpath (yourAppDBdirectory).

could not connect to MongoDB

I have an issue using the mean.io tutorial to create the default mean app. i have mongodb install what could be ths issue this is the error.That is the error below. Thanks.
PS C:\Users\Truparse Creative\Documents\myMeanProject\lisavogue> npm test
> mean#0.5.5 test C:\Users\Truparse Creative\Documents\myMeanProject\lisavogue
> gulp test
Invoking gulp - development
[08:40:17] Using gulpfile ~\Documents\myMeanProject\lisavogue\gulpfile.js
[08:40:17] Starting 'startServer'...
Error: connect ECONNREFUSED 127.0.0.1:27017
**Could not connect to MongoDB. Please ensure mongod is running and restart MEAN app.**

in your terminal, type mongod to start mongodb and leave it running. Then, open a new terminal tab(or window) and try running your application again.
You need the mongodb server to be running to be able to use it. It looks like you're not running it.
You can also access the mongo shell by running mongo in your terminal to look at the server, collections, perform queries, etc.