FreeCodeCamp/HelpBackEnd

Get help on our Back End Development projects

Ka Lun Lee

@kalunlee136

@darrylpargeter oh ok, i'll look into that one then. i tried the goodreads one and the docs are kind of confusing

@darrylpargeter thanks

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Agustina

@abrden

hi guys, did anyone had to use the MongoLab add-on to deploy the APIs to Heroku?

Darryl Pargeter

@darrylpargeter

I did

Agustina

@abrden

Is there any way to do it without verificating the account with a credit card?

Darryl Pargeter

@darrylpargeter

not that I know of

think if you have more then 5 app/ what to use a add on have to enter your deatils

Agustina

@abrden

@darrylpargeter ok, thanks!

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Darryl Pargeter

@darrylpargeter

though mongolabs might let you use it for free then add the link to heroku your self which would skip the heroku add on bit. could possible do it that way but I don't know if that would work or not

Moisés Man

@moigithub

yes u can do without mongolab addon.. but there are more limitations like num of DB's and dunnowhatelse
but if u use the same DB with differents collection names for each app.. all good.. should be enough for testing/fcc exercises

Kenneth Black

@LawlietBlack

@abrden you can use an empty gift card

Kenneth Black

@LawlietBlack

Has anyone here finished the file metatdata project. I don't quite understand what they want me to do

Moisés Man

@moigithub

u make a file upload form
n from server ... return file size

apklip

@apklip

How do I get rid of the margin on the left?http://codepen.io/DarkPigeons/pen/pgMvdv

James Rezendes

@JamieRez

Hey, I'm trying to use express's sendFile to open up index.html when I go to the homepage of my application. My code looks correct, but I get an error saying "Unexpected token <"
This is because the html's first line is <!DOCTYPE html>
How do I let it send the html file?

Malcolm

@noinkling

@JamieRez Manage to work it out? Can we see some code if not?

Tom

@ch4tml

This message was deleted

Nathan

@natertot12

Can someone help me. How do I search for something thats not in an array for mongoDB.

db.collection('polls').findOne({
        _id: ObjectID(currentPoll),
        //votedBy: {$nin: currentUser._id },
        votedBy: {$not: currentUser._id}
    },function(err, poll) {
        if(err) throw err;
        if(poll != null) {
//do code below

Andre Alonzo

@paycoguy

@natertot12 see if this works

https://docs.mongodb.org/manual/reference/operator/query/nin/

Nathan

@natertot12

@paycoguy I tried that but it still doesn't work... Maybe its my update function

db.collection('polls').update({
          _id: ObjectID(currentPoll)
      }, { 
          $push: { votedBy: currentUser._id } 
      });

I've also tried $addToSet

Mateo Pool

@IAmMyself

On learnyounode HTTP CLIENT (Exercise 7 of 13), it says "For this exercise you will need to use the http core module. " How do I do that?

Andre Alonzo

@paycoguy

@natertot12 are you looking inside your mongodb to see if your update works properly?

Nathan

@natertot12

@IAmMyself npm install -g http``http = require("http")

Mateo Pool

@IAmMyself

does this go in the bash terminal?

@natertot12

Nathan

@natertot12

@paycoguy I've console.log(poll.votedBy) after my if(poll != null) and it returns empty

Andre Alonzo

@paycoguy

@natertot12 you can log into mongodb to verify that the update worked

Nathan

@natertot12

@IAmMyself Yeah first do npm install -g http in terminal and at the top of your learnyounodefile.js say var http = require("http") then you can just call http.createServer or whatever

Mateo Pool

@IAmMyself

@natertot12 Thx

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Andre Alonzo

@paycoguy

in a terminal type

mongo

then

use <database name>

then

db.polls.find({})

Nathan

@natertot12

@paycoguy Ok one min

@paycoguy How should I check my update function?

Andre Alonzo

@paycoguy

@natertot12 run then function, then go to your terminal and do a db.polls.find({})

find the poll in question and see if the user was added to the poll

CamperBot

@camperbot

find the poll in question and see if the user was added to the poll
nothing found

Nathan

@natertot12

@paycoguy With $nin It returns

MongoError: Can't canonicalize query: BadValue $nin needs an array

Andre Alonzo

@paycoguy

@natertot12 when you do a db.polls.find({}), is votedBy an array?

Nathan

@natertot12

Yeah but its empty

function savePoll(des, chart) {
    var polls = db.collection('polls');
    polls.insertOne({createdBy: currentUser._id.toString(), total: 0, "Description": des, "Data": chart, votedBy: []}, function(err) {
      if(err) throw err;
    });
  }

Andre Alonzo

@paycoguy

@natertot12 ok so that means that the update isn't working

@natertot12

db.collection('polls').update({
          _id: ObjectID(currentPoll)
      }, { 
          $push: { votedBy: currentUser._id } 
      });

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