nodejs/node

General chat about the Node.js JavaScript runtime

Jordan Harband

@ljharb

altho generally i'd say if you need that much information drilled through then you may have architectural things that need fixing

Salathiel Genèse

@SalathielGenese

Thought the same

Then, as I added tests to existing app

I sometimes needed Redis connection with different settings in tests

(Like response delay, which I typically don't want too long, as my test cases is better fitting within 5s)

(or just a different Redis internal DB !== 0)

Some other tests need both Redis and the HTTP server

Others, just HTTP server and SMTP transport/mock

There goes a list of 10+ dependencies (services) and may or may not be required for some tests cases/suites, sometimes mocked, sometimes not

Lazy loading became a challenge

Salathiel Genèse

@SalathielGenese

Then, it happens that a dependency-A depends on dependency-B, dependency-C... in a way that mocking them for every test suite is tedious

But if they all came from the same container where I can just control/override what need overriding, those dependencies can cleanly have relationship between themselves, through the dependency container

مصطفی

@mostafarahimifard

Rob

@borriej

hi guys :wave:
Is mongoose still a good option to use in 2021?
Or is it a bit old?

npm downloads popularrity is still rising on mongoose

joepie91 🏳️‍🌈

@joepie91:pixie.town

[m]

I would recommend completely ignoring download count on npm, it's useless as a metric

it tells you a lot more about how many people use CIs and how much momentum a package has, than about how good or widely-supported it is

I would personally never recommend using MongoDB at all (it's just not a good database), and needing Mongoose in particular is a pretty reliable indication that what you're actually looking for is a relational database, in which case PostgreSQL is a good option. but if you're stuck with MongoDB for some reason, Mongoose is AFAIK still a common option

Rob

@borriej

Ok thank you

Jordan Harband

@ljharb

it was never a good option in the first place.

mongo, i mean

i like mongoose a lot, but mainly because it makes mongo more like a real database

Suchitra Giri

@SUCHITRAGIRI

I am working on docker with node and mongo container. So here facing issue with this

C:\Users\HP\Desktop\nodeDocker>docker logs nodedocker_node-app_1

> nodeDocker@1.0.0 dev
> nodemon -L index.js

[nodemon] 2.0.12
[nodemon] to restart at any time, enter `rs`
[nodemon] watching path(s): *.*
[nodemon] watching extensions: js,mjs,json
[nodemon] starting `node index.js`
node:internal/modules/cjs/loader:927
  throw err;
  ^

Error: Cannot find module 'mongoose'
Require stack:
- /app/index.js
    at Function.Module._resolveFilename (node:internal/modules/cjs/loader:924:15)
    at Function.Module._load (node:internal/modules/cjs/loader:769:27)
    at Module.require (node:internal/modules/cjs/loader:996:19)
    at require (node:internal/modules/cjs/helpers:92:18)
    at Object.<anonymous> (/app/index.js:2:18)
    at Module._compile (node:internal/modules/cjs/loader:1092:14)
    at Object.Module._extensions..js (node:internal/modules/cjs/loader:1121:10)
    at Module.load (node:internal/modules/cjs/loader:972:32)
    at Function.Module._load (node:internal/modules/cjs/loader:813:14)
    at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:76:12) {
  code: 'MODULE_NOT_FOUND',
  requireStack: [ '/app/index.js' ]
}
[nodemon] app crashed - waiting for file changes before starting...

What should I do any suggestions??

My two containers


C:\Users\HP\Desktop\nodeDocker>docker ps
CONTAINER ID   IMAGE                 COMMAND                  CREATED          STATUS          PORTS
       NAMES
ee16f1b8e259   nodedocker_node-app   "docker-entrypoint.s…"   41 minutes ago   Up 41 minutes   0.0.0.0:3000->3000/tcp, :::3000->3000/tcp   nodedocker_node-app_1
f4a0a6c08139   mongo                 "docker-entrypoint.s…"   41 minutes ago   Up 41 minutes   27017/tcp
       nodedocker_mongo_1

snxraven

@snxraven:matrix-linux.cloud

[m]

mongoose needs to be installed

Suchitra Giri

@SUCHITRAGIRI

@snxraven:matrix-linux.cloud but I already did that

snxraven

@snxraven:matrix-linux.cloud

[m]

Check the node_modules directory. I am willing to bet its not installing properly. If the module is there this error wont show

Suchitra Giri

@SUCHITRAGIRI

@snxraven:matrix-linux.cloud see!
Everything seems to be fine but still showing error:(

C:\Users\HP\Desktop\nodeDocker>docker-compose -f docker-compose.yml -f docker-compose.dev.yml up -d
Creating network "nodedocker_default" with the default driver
Creating nodedocker_mongo_1    ... done
Creating nodedocker_node-app_1 ... done

C:\Users\HP\Desktop\nodeDocker>docker ps
CONTAINER ID   IMAGE                 COMMAND                  CREATED          STATUS          PORTS
       NAMES
d418e635530a   nodedocker_node-app   "docker-entrypoint.s…"   13 seconds ago   Up 5 seconds    0.0.0.0:3000->3000/tcp, :::3000->3000/tcp   nodedocker_node-app_1
c8ca51a81d22   mongo                 "docker-entrypoint.s…"   14 seconds ago   Up 12 seconds   27017/tcp
       nodedocker_mongo_1

C:\Users\HP\Desktop\nodeDocker>docker logs    

C:\Users\HP\Desktop\nodeDocker>docker logs nodedocker_node-app_1

> nodeDocker@1.0.0 dev
> nodemon -L index.js

[nodemon] 2.0.12
[nodemon] to restart at any time, enter `rs`
[nodemon] watching path(s): *.*
[nodemon] watching extensions: js,mjs,json  
[nodemon] starting `node index.js`
node:internal/modules/cjs/loader:927
  throw err;
  ^

Error: Cannot find module 'mongoose'
Require stack:
- /app/index.js
    at Function.Module._resolveFilename (node:internal/modules/cjs/loader:924:15)
    at Function.Module._load (node:internal/modules/cjs/loader:769:27)
    at Module.require (node:internal/modules/cjs/loader:996:19)
    at require (node:internal/modules/cjs/helpers:92:18)
    at Object.<anonymous> (/app/index.js:2:18)
    at Module._compile (node:internal/modules/cjs/loader:1092:14)
    at Object.Module._extensions..js (node:internal/modules/cjs/loader:1121:10)
    at Module.load (node:internal/modules/cjs/loader:972:32)
    at Function.Module._load (node:internal/modules/cjs/loader:813:14)
    at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:76:12) {
  code: 'MODULE_NOT_FOUND',
  requireStack: [ '/app/index.js' ]
}
[nodemon] app crashed - waiting for file changes before starting...

snxraven

@snxraven:matrix-linux.cloud

[m]

The container itself is whats missing mongoose. How are you installing the module within your compose?

2 replies

Suchitra Giri

@SUCHITRAGIRI

And also localhost:3000 is not working now.
For solving the issue, I removed the node_modules and package-lock.json and reinstalled again. But still getting same error:(
What should I do now??
Please suggest it would to very appreciated.

snxraven

@snxraven:matrix-linux.cloud

[m]

In your compose you need

RUN npm install mongoose

That will install mongoose within the container

Its running node in the container not the host OS so you are required to install mongoose using compose as instructed above

That will be added to the compose yml you are using

Suchitra Giri

@SUCHITRAGIRI

See..
this is my docker-compose.yml file

version: "3"
services:
  node-app:
    build: .
    ports:
      - "3000:3000"
    environment:
      - PORT=3000

  mongo:
    image: mongo
    environment:
      MONGO_INITDB_ROOT_USERNAME: <>
      MONGO_INITDB_ROOT_PASSWORD: <>
    volumes:
      - mongo-db:/data/db

volumes:
  mongo-db:

and this is docker-compose.dev.yml

version: "3"
services:
  node-app:
    build:
      context: .
      args:
        NODE_ENV: development
    volumes:
      - ./:/app
      - /app/node_modules
    environment:
      - NODE_ENV=development
    command: npm run dev

this is docker-compose.prod.yml

version: "3"
services:
  node-app:
    build:
      context: .
      args:
        NODE_ENV: production
    environment:
      - NODE_ENV=production
    command: node index.js

@snxraven:matrix-linux.cloud where should I write
RUN npm install mongoose

snxraven

@snxraven:matrix-linux.cloud

[m]

npm install mongoose

Oops lol

https://www.cloudbees.com/blog/using-docker-compose-for-nodejs-development

That might help some. On my way to lunch break. Bbl

snxraven

@snxraven:matrix-linux.cloud

[m]

You are welcome, I am glad you got the package installed. You will want to do some reading on Dockerfiles vs Docker Compose and how to use them, the link I provided above gives a bit of a run down for that process. I wish you luck with your development :)

jsoneaday

@jsoneaday

Does anyone know if node team will eventually move to using Rust language?

snxraven

@snxraven:matrix-linux.cloud

[m]

They are completely different langs, that would not make any sense

mr.james

@st-fresh

anyone using the mysql package="@mysql/xdevapi": "^8.0.26" ?

trying to use the .getSession method to establish connection to locally running mysql db.. https://dev.mysql.com/doc/dev/connector-nodejs/8.0/tutorial-Connecting_to_a_Server.html

shell returns connect ECONNREFUSED 127.0.0.1:33060

mr.james

@st-fresh

my module..

const MySql = require("@mysql/xdevapi"); 

const config = {
    password: '...',
    user: 'root',
    host: 'localhost',
    port: 33060
};

MySql.getSession(config)
    .then(session => {
        console.log(session.inspect());
    })
    .catch(err => {
        console.log(err.message); 
    });

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