FreeCodeCamp/HelpBackEnd

Get help on our Back End Development projects

Vishesh Mangla

@Teut2711

can someone help me with npm?

I want to use python-shell package

Momozor

@momozor

@XtremeGood just tell the issues

harish-103

@harish-103

C:\Users\Hello\hello_app\node_modules\webpack-core\lib\LoadersList.js:60
throw new Error("Element from loaders list should have one of the fields 'loader' or 'loaders'");
^

Error: Element from loaders list should have one of the fields 'loader' or 'loaders'
at getLoadersFromObject (C:\Users\Hello\hello_app\node_modules\webpack-core\lib\LoadersList.js:60:8)
at LoadersList.<anonymous> (C:\Users\Hello\hello_app\node_modules\webpack-core\lib\LoadersList.js:78:12)
at Array.map (<anonymous>)
at LoadersList.match (C:\Users\Hello\hello_app\node_modules\webpack-core\lib\LoadersList.js:70:19)
at C:\Users\Hello\hello_app\node_modules\webpack\lib\NormalModuleFactory.js:111:68
at C:\Users\Hello\hello_app\node_modules\async\lib\async.js:726:13
at C:\Users\Hello\hello_app\node_modules\async\lib\async.js:52:16
at done (C:\Users\Hello\hello_app\node_modules\async\lib\async.js:246:17)
at C:\Users\Hello\hello_app\node_modules\async\lib\async.js:44:16
at C:\Users\Hello\hello_app\node_modules\async\lib\async.js:723:17

error?

Seif Eddine Slimene

@SeifESlimene

"Element from loaders list should have one of the fields 'loader' or 'loaders'"

Riz Syed

@rizsyed1

Hi peeps! I am having a few issues with Heroku :( I am deploying a Node application - a web scraper

Here are the logs: https://dpaste.org/3AkR

Can anyone ascertain the issue? The build process was fine and the node app starts running, but then for some reason heroku returns a 503 error.
I am guessing there is some issue with the heroku.yml file?

Heroku deploys automatically from the master branch of this repo: https://github.com/RS357/retail-url-scraper

alpox

@alpox

@RS357 Does the app work locally?

Riz Syed

@rizsyed1

@alpox yes it does

alpox

@alpox

Seems weird to me to run it on host 0.0.0.0

Riz Syed

@rizsyed1

I was told that was protocol

Riz Syed

@rizsyed1

hi all, would you say this is a 'trivial' app, as opposed to one that might persuade a hiring manager that I'd be a good person for a junior dev role?

https://github.com/RS357/retail-url-scraper <- code

https://retail-url-scraper.herokuapp.com/site-urls/dell.com <- deployed app ( select a site by using following URL format - insert hostname without 'www': https://retail-url-scraper.herokuapp.com/site-urls/[hostname])

Chintan Rathod

@chintan992

'at=error code=H13 desc="Connection closed without response" method=POST path="/upload" host=nameless-eyrie-28819.herokuapp.com request_id=efec9247-d3ba-43ac-9207-66d44cd459ba fwd="103.251.57.242" dyno=web.1 connect=0ms service=984ms status=503 bytes=0 protocol=https'

i am facing this issue

while upload an file in heroku

alpox

@alpox

@chintan992 sounds like a serverside problem. I dont think someone can help without the actual code.

Apart from that: Heroku, as far as I know, does not have persistent storage in their dynos so you would have to use an additional, external storage service if you dont want to lose your uploads

Bjorn

@bjorno43

@chintan992 https://devcenter.heroku.com/articles/error-codes#h13-connection-closed-without-response

95mainer

@95mainer

what kind of basics should I cover before I start my backend cir?

https://www.freecodecamp.org/learn/information-security-and-quality-assurance/information-security-with-helmetjs/install-and-require-helmet

this is my first step but I know nothing about installing .json files

https://github.com/95mainer/helloworld/tree/package.json

my project

creating branch and all that was easy in the guideline on github as shown in the challenge. However, nowhere did it show how to installing packages

Jason Luboff

@JLuboff

@95mainer You use npm i packageName

95mainer

@95mainer

Yeah but I have no idea how to install a package or how to do that in github

So I feel like I'm diving in too complex subject without basics covered first.

maybe I should be doing API and microservice first? That looks like where the package installment lessons are at

Jason Luboff

@JLuboff

You don't install packages in github. Github is just a code repository

But yes, I would say work on the API/microservices first

95mainer

@95mainer

Yeah sounds about right

Ari Harrison

@realariharrison_twitter

Google Map Perimeter Drawing
Hi, how can I create a map that behaves like redfin or zillow? on web app https://www.redfin.com/city/3879/OH/Cincinnati/filter/include=forsale+mlsfsbo+construction .....it draws a line around the city when the user searches the city

https://www.zillow.com/homes/Los-Angeles,-CA_rb/

please advise

Kris Baillargeon

@krisb1220

@realariharrison_twitter Google maps has a feature in it's API that allows you to draw on it. Based on the thickness of the lines, it looks like Redfin uses that feature. They just programmatically draw the borders.

https://developers.google.com/maps/documentation/javascript/examples/drawing-tools

I'm not sure how they do it, I don't know anything about the Maps API, lol. That's just a guess based on a quick Google search.

Ankur sharma

@ankur1163

I am trying very simple post request in express, mongoose

const router = require('express').Router();
const User = require('../model/User')
 router.post('/register',async (req,res)=>{
    console.log("entered")
   const user = new User ({
       name:req.body.name,
       email:req.body.email,
       password:req.body.password
   })
    try{
        console.log("try")
        const savedUser = await user.save();
       console.log("got",savedUser)
       res.send(savedUser)


    }catch(err){
        res.status(400).send(err)
    }
}) 

router.post(
    '/new', function (req, res) {
        res.send('POST request to the auth homepage')
})


router.post(
    '/', function (req, res) {
        res.send('POST request to the auth homepage')
})




module.exports = router;

/new route works, / route works

/register doesnt work, the postman just stuck

cancelled or called out

this code particularly

try{
        console.log("try")
        const savedUser = await user.save();
       console.log("got",savedUser)
       res.send(savedUser)

i can see try in my console

after that nothing happens in console

proquibas

@proquibas

try:
user.save()
.then(result => {
console.log(result);
res.send(result);
}).catch(err => {
console.log(err);
res.status(400).send(err);
});

Ankur sharma

@ankur1163

@proquibas

this is the code now

     password:req.body.password
   })
    try{
        user.save()
        .then(result=>{
            console.log(result);
            res.send(result)
        }).catch(err=>{
            console.log(err);
            res.status(400).send(err)
        })

but its still stuck

https://screencast.com/t/DSHRSzbMOPY

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