not sure how to use await?

[waxen jewel]

anyone know how i can use await? using mongooose atm.

const passport = require('passport'); 
const LocalStrategy = require('passport-local').Strategy; 
const UserModel = require('./User'); 
// maps the passport fields to the names of fields in database
const localOpt = { 
 usernameField : 'email', 
 passwordField : 'password' 
}; 
// define strategy for validating login
const strategy = new LocalStrategy(localOpt, async (email, 
password, done) => { 
 try { 
 // Find the user in the DB associated with this email 
 const userChosen = await UserModel.findOne({ email: email }); 
 
 if( !userChosen ){ 
 //If the user isn't found in the database, set flash message
 return done(null, false, { message : 'Email not found'}); 
 } 
 // Validate password and make sure it matches the bcrypt digest 
 //stored in the database. If they match, return a value of true.
 const validate = await userChosen.isValidPassword(password); 
 if( !validate ){ 
 return done(null, false, { message : 'Wrong Password'}); 
 } 
 // Send the user information to the next middleware
 return done(null, userChosen, { message : 'Logged in Successfully'}); 
 } 
 catch (error) { 
 return done(error); 
 } 
}); 
// for localLogin, use our strategy to handle User login
passport.use('localLogin', strategy); 
 
// by default, passport uses sessions to maintain login status ... 
// you have to determine what to save in session via serializeUser 
// and deserializeUser. In our case, we will save the email in the 
// session data
passport.serializeUser( (user, done) => done(null, user.email) ); 
 
passport.deserializeUser( (email, done) => { 
 UserModel.findOne({ email: email }, (err, user) => done(err, 
user) ); 
});

im pretty sure that the resource im using to code this is outdated

[urban pagoda]

you should look up the official docs for the version of mongoose that npm installed

[waxen jewel]

wdym

as in my book

or the version i have installed

[urban pagoda]

the version that you have installed

or install the version of mongoose from your book

[waxen jewel]

cause ik the version i have installed is the lastest version

but its outdated

[urban pagoda]

so i'm saying either look up the docs for the version you have installed, OR install the version the book was based on

[waxen jewel]

and i was asking i guess how i can refactor my code and use promises instead of callbacks and what the difference is in terms of syntax

[urban pagoda]

but if you follow some book/guide but install a different version of a library, you will be susceptible to these kinds of breaking changes

[waxen jewel]

i guess it matters about context

like here its erroring when i use the function findOne

[urban pagoda]

what's the method signature for the version of findOne you have installed?

[waxen jewel]

hmm idk im using a text editor

not an ide

[urban pagoda]

^

[waxen jewel]

i see

[urban pagoda]

I'm guessing it now returns a promise, but knowing how to look up the official API docs of libraries that you depend on is a critical skill

[waxen jewel]

ya i guess i had trouble understandign promises

vs callbacks

[urban pagoda]

so you don't need to use await with promises

probably the easiest way to update your code is to call .then() and then pass your callback to that

(I'm assuming a <<Query>> is a promise)

So try:

passport.deserializeUser( (email, done) => { 
  UserModel.findOne({ email: email })
    .exec()
    .then((err, user) => done(err, user)),
});

or something like that

[waxen jewel]

ya its just a bit diffcult. since book doesnt explain anything thats happening with the code and excepts you to edit it and figure stuff out. its like using someone esles code that has more experience than you and your trying to learn off somoene elses code base

ill try

[urban pagoda]

but learning about promises syntax probably requires a whole other tutorial in itself. I'm not prepared to teach you about promises here 🙂

I generally find that code samples from books that use 3rd party libraries often struggle from this problem where if you try to run it, you either need to find out the old version of the library that was used when the book was written, or you'll need to adapt it to newer APIs

[waxen jewel]

ya and it becomes harder

[urban pagoda]

If I'm trying to learn how to use a library, I try to use code samples from the library itself, as this has the highest chance of being maintained

[waxen jewel]

beause your the one trying to learn

[waxen jewel]

but here is the issue

your trying to follow a larger scale project

[urban pagoda]

for example: https://mongoosejs.com/docs/

[waxen jewel]

from a book and youd be bettrer off rewriting code

than following book

but teacher grades you based off the book

and lab itself

its like your learning with broken code

[urban pagoda]

I personally would prioritize developing a learning strategy/system that will last me my whole career, rather than optimizing for what the teacher is looking for

[waxen jewel]

i guess. but if teacher is grading you based on your lab and following steps and taking screenshots

it becomes double the work

of learning stuff twice almost

i got this

i think thats correct

idk didnt give me an output

of what is evne suppose to happen

[urban pagoda]

I would prioritize developing a learning strategy/system that will benefit me long-term, rather than optimizing for what the teacher is looking for 🙂

[waxen jewel]

ya i agree. but do you want to pass the class or do you want to spend time doing it your way and then still having to do the book

at same time

of coruse if it wasnt for teacher i would not be learning tihs way

[urban pagoda]

it sounds like you're developing bad habits

[waxen jewel]

i am.

but employeers want this piece of paper that says you went to school. but at same time teachers give you books with buggy outdated code

[urban pagoda]

but employeers want this piece of paper that says you went to school

do they really?

or do they want someone who can do the job?

[waxen jewel]

well not neccarily

but id like to think that the paper gets you a chance to show your skills

against thousands of applications that get reviewed

and filitered

like at ibm where my uncle works they only accept people with 4 years/bachleors degree

i dont think they would even look at or consider your application

[waxen jewel]

on paper that should work

but i dont think thats the reality. especially when trying to get your first job. after that it doesnt matter i feel

depends on company too. at game companies they could care less i feel.

[urban pagoda]

first, that's only one company. second, if you read the mongoose docs and build something that works, is your teacher really going to give you a bad grade? and third, is IBM gonna look at your transcripts and see that bad grade?

[waxen jewel]

idk im just trying to survive the system

lol

forutenly for me i want to get into tech art

so i dont think a degree really matters that much anyways

but its nice to have something to fall back on

[urban pagoda]

I'm just saying, maybe the system isn't the way you think it is

[waxen jewel]

prob. i dont think there is a black and white

[urban pagoda]

and maybe you're better off prioritizing your own learning than grades

[waxen jewel]

well im done with school after this

so now i can go learn stuff i want to learn

[urban pagoda]

congrats

[waxen jewel]

today is last day of college

thanks

[urban pagoda]

oh nice

[waxen jewel]

now i can go sculpt shit. i wanted to be a character artist. but doing it on the side as of right now

i was thinkojng about going into tech art

since its a combination of both

[urban pagoda]

what is tech art? like doing 3d modeling?

[waxen jewel]

its the person in charge of the pipeline

or making sure stuff is smooth sailing

for artists in terms of shaders, tools, rigging etc

i want to work more on the shader side in engine

[urban pagoda]

which pipeline?

for games?

[waxen jewel]

for games or movies

[urban pagoda]

ahh, i see

[waxen jewel]

mostly games

[urban pagoda]

that's cool

[waxen jewel]

im not sure if movies have tech artists on same level as games

cause games are more technical

its a very high level job

or job where you need to know yoru shit

cause there is not much of them per a team

[urban pagoda]

right

[waxen jewel]

only like 2-3 prob

your the person people fall back on when stuff doesnt work in engine. they are artists but dont know enough about tech side. but the programmers or technical people dont know much about art side

so tech artists comes in and makes sure artists know what they can or cant do

since they understand both sides

but anyhow its a cool job

[urban pagoda]

yeah

definitely