Also they actually keep deprecated functions for many versions to increase the support for older codes
#development
modest maple
They originally provided mysql_escape_string, until that caused issues because it didn't actually give a shit about character encoding
Then you got real_escape which did do charset logic
Providing you bothered to set the charset
boreal iron
The extension support for this was dropped far ago
The newer extension for years now is mysqli which fixes lots this bottlenecks
iirc here
But yeah there’s no native support
At end it means thrrre no native solution to archive this, which is why you better use prepared statements
boreal iron
Yeah
boreal iron
Already got that the last time 
When you said it
Just didn’t think of it as well as I didn’t think of it being an extension for php and not natively being implemented
modest maple
Legact Php is a pretty bad example in alot of cases
boreal iron
Hmm I don’t agree especially not with PHP8 in mind
But it’s not really worth to discuss about different use cases and preferences
cinder patio
Prepared is not the same as parameterized
what's the difference? Wikipedia's telling me it's the same thing
feral aspen
I love regexes.
Goodness. I was about to manually recode 650 lines but regexes are just life saving.
boreal iron
Wtf doesn’t your code editor support search&replace?
searching interaction.followUp({ embeds: as text string does the same as your regex 
You over complicate something damn simple
feral aspen
You over complicate something damn simple
No?
The value of the index in embeds: is not the same.
It can sometimes be embed, embeds, lol, idiot, authorEmbed, etc.
earnest phoenix
i have a question, can I use markdown for my top.gg bot page?
It is my first time using top.gg and I want to write the description of my bot in Markdown instead of plain text.
feral aspen
i have a question, can I use markdown for my top.gg bot page?
Indeed.
Please confirm this at #support .
feral aspen
searching `interaction.followUp({ embeds:` as text string does the same as your ...
Also, I'm adding something at the end of the line.
pale vessel
It can sometimes be `embed`, `embeds`, `lol`, `idiot`, `authorEmbed`, etc.
work smart
earnest phoenix
Please confirm this at <#714045415707770900> .
Ok, thanks!
quartz kindle
what's the difference? Wikipedia's telling me it's the same thing
afaik prepared statement is a preprocessed query that takes parameters to execute, a parameterized query is a non-preprocessed query that takes the parameters and either performs a normal query, or builds a prepared statement internally and executes it
quartz kindle
you use them when your lib/db doesnt support prepared statements, or when your query is not repeatable
if your query is not repeatable, theres no point in building a precompiled query if you're not gonna reuse it
cinder patio
ah alright. Good to know.
eternal osprey
let pointchannel = message.guild.channels.cache.find(
(channel) => channel.id === "community-posts" //809659997423796247
);
if (!pointchannel ) {
channel1 = await message.guild.channels.create("community-posts", {
type: "text",
permissionOverwrites: [
{
id: message.guild.id,
deny: ["VIEW_CHANNEL"],
},
{
id: client.user.id,
allow: ["VIEW_CHANNEL"],
},
],
});
channel1.send(
"test"
);
}``` why the fuck does this create millions of channels
last crow
Hello, is this json in the body of the request? (Webhook)
eternal osprey
dang i am a fucktard
solemn latch
Hello, is this json in the body of the request? (Webhook)
yep!
eternal osprey
haha yeah, thanks for the help kuu!
lyric mountain
yw
solemn latch
looks like you need to get the value
last crow
get the valeu?
eternal osprey
how do i actually ping a message in the way of <@${id}>
but then for a message.id
eternal osprey
yeah
solemn latch
I'm pretty sure you can only link to messages, not ping them 👀
eternal osprey
owh how would i link to it usin an id?
solemn latch
youll need the guild id, channel id, and message id.
https://discord.com/channels/GuildIDHere/ChannelIDHere/MessageIDHere
for example, this is a message in #support
#support message
last crow
what library are you using?
eh no library only typescript
with harmony as discord api client
solemn latch
can you show your code for receiving the webhook then?
last tapir
hi everyone, i have pm2 and when an error occurs, it restarts the application why so?
i want it so if it errors, it doesn't auto restart the application
real phoenix
@client.command()
async def verify(ctx):
if str(ctx.message.channel) == 'verify':
role = 839159549260333121
roleTag = 839159549260333126
oldRole = 940251830980603975
# Change roles
await ctx.message.author.add_roles(role)
await ctx.message.author.add_roles(roleTag)
await ctx.message.author.remove_roles(oldRole)
await ctx.send("Success!")
I'm making a verify command that changes your roles. However its not working. Heres the error
aise CommandInvokeError(exc) from exc
discord.ext.commands.errors.CommandInvokeError: Command raised an exception: AttributeError: 'int' object has no attribute 'id'
From what I know I'm doing this correctly. Is there any reason why this happens?
last crow
can you show your code for receiving the webhook then?
import { Application, Context } from "https://deno.land/x/oak@v10.2.0/mod.ts";
const app = new Application();
app.use(async (ctx:Context) => {
if(ctx.request.headers.get("authorization") == "---"){
console.log(await ctx.request.body())
}
ctx.response.body = "Hello world!";
});
so you are using the oak library?
last crow
yeah
solemn latch
looks like you just need to parse the value
last crow
JSON.parse()?
solemn latch
const value = JSON.parse(JSON.stringify(await ctx.request.body()));
I would presume
or just json.parse would probably work
grabbed that from a tutorial 👀
ive never used oak, not sure what's required.
there also seems to be a middleware for it.
https://codingshiksha.com/javascript/deno-js-tutorial-to-parse-json-objects-schema-in-oak-framework-using-jsonparser-middleware-in-typescript-full-project-for-beginners/
last crow
thx
lyric mountain
`const value = JSON.parse(JSON.stringify(await ctx.request.body()));`
I would pr...
isn't that the same as parseInt(aNumber.toString())?
solemn latch
Does that work for parsing json?
lyric mountain
no, I mean, you're transforming something to string then transforming back to json
it's like x / 5 * 5
last tapir
hi everyone, i have pm2 and when an error occurs, it restarts the application why so?
i want it so if it errors, it doesn't auto restart the application
spark flint
Try pm2 logs and see what error
last tapir
0|attitude | /root/bot/node_modules/discord.js/src/rest/RequestHandler.js:350
0|attitude | throw new DiscordAPIError(data, res.status, request);
0|attitude | ^
0|attitude | DiscordAPIError: Cannot send an empty message
Something like that
im a helper of @feral aspen and he kind-of got fedup
lyric mountain
```js
0|attitude | /root/bot/node_modules/discord.js/src/rest/RequestHandler.js...
you're trying to send an empty message somewhere
show the full stacktrace
feral aspen
👋
spark flint
Add a handler for errors
lyric mountain
cuz that's a great thing they added on newer node versions
feral aspen
lyric mountain
and I'm not even being sarcastic
feral aspen
Wait, the new node crashes the application on errors?
lyric mountain
ye
feral aspen
HUH?
lyric mountain
as it's supposed to be
feral aspen
WHY.
lyric mountain
because crashes aren't really that evil
better a crash than a silent error slowly consuming your soul
you CAN make a global error handler tho, which would prevent crashes on any error
but you should always treat exceptions
spark flint
I have one of those it just logs errors
feral aspen
That's the full one.
lyric mountain
That's the full one.
delete those urls
spark flint
process.on('unhandledRejection', error => {
console.log(error);
});
That’s what I have
lyric mountain
you just leaked the webhook's path
feral aspen
Oh my god.
lyric mountain
you can spam with the url alone
lyric mountain
redact the url, then show again
lyric mountain
process.on('unhandledRejection', error => {
console.log(error);
});
yeah, global handler
feral aspen
feral aspen
Could be the logs, I guess.
feral aspen
you CAN make a global error handler tho, which would prevent crashes on any erro...
Can I just do this?
I don't want it to keep crashing, but I will soon read the errors and fix them without having the bot to crash.
lyric mountain
you can, but treat all the exceptions whenever they occur
lyric mountain
put that exact code in ur index
feral aspen
Even if I have sharding?
last crow
`const value = JSON.parse(JSON.stringify(await ctx.request.body()));`
I would pr...
{ type: "json", value: {} }
Is that what you get back from a test request?
feral aspen
put that exact code in ur index
process.on('unhandledRejection', error => {
console.log(error);
});
Even if I have sharding, correct?
solemn latch
`{ type: "json", value: {} }`
Is that what you get back from a test request?
It shouldn't be.
Are you using any characters with accents in your url or auth?
À
lyric mountain
yes, that's regarding process errors
lyric mountain
regardless of what u have in the code
last crow
It shouldn't be.
Are you using any characters with accents in your url or auth?
...
yes, but didn't change anything
import { Application, Context } from "https://deno.land/x/oak@v10.2.0/mod.ts";
import { jsonParser } from "https://raw.githubusercontent.com/gjuoun/oak-json-parser/master/mod.ts"
const app = new Application();
app.use(async (ctx:Context) => {
if(ctx.request.headers.get("authorization") == "---"){
console.log(JSON.parse(JSON.stringify(await ctx.request.body())))
}
await delay(20)
ctx.response.body = "Hello world!";
});
async function delay(ms:number) {
await new Promise((resolve) => setTimeout(resolve, ms));
}
await app.listen({ port: 8000 });
``` is my codeI have a quick question though.. could you send me the documentation of where it mentions that it now restarts when there is an error? Can't seem to find it.
solemn latch
```ts
import { Application, Context } from "https://deno.land/x/oak@v10.2.0/mod....
Bot ID? I'll vote for it and see if it works.
Maybe tests are broken for you?
last crow
706526290181619775
solemn latch
The thread button appears out of nowhere sometimes 
spark flint
The thread button appears out of nowhere sometimes <:topggAngry:8480497511518700...
Threads: don’t open when wanted
Also threads: hey open one when you don’t want one!
lyric mountain
I have a quick question though.. could you send me the documentation of where it...
it doesn't restart, it exits with non-zero code
boreal iron
The value of the index in `embeds:` is not the same.
Why should that matter in any kind?
Searching for interaction.followUp({ embeds: and replacing it by interaction.editReply({ embeds: does exactly the same as you RegEx.
Which does exactly means you over complicate things...
Search and replace works fine here.
The content of your embeds array doesn't matter as you don't wanna replace that, or do you?
lyric mountain
what makes it restart is pm2
last crow
Bot ID? I'll vote for it and see if it works.
Maybe tests are broken for you?
also { type: "json", value: {} }
solemn latch
👀
feral aspen
Why should that matter in any kind?
Searching for `interaction.followUp({ embeds...
I'm not doing that, though?
boreal iron
I'm not doing that, though?
lol thought you just wanna replace the followUp by the editReply method
nvm then
feral aspen
lol thought you just wanna replace the followUp by the editReply method
Nope.. it was a node issue after all.
candid lance
1
quaint rampart
anybody working on anything cool they wanna share i wanna see some new projects or something idk
split hazel
im making an among us machine learning bot
it finds things that look like amogus in an image and puts squares around them
hexed garnet
anybody working on anything cool they wanna share i wanna see some new projects ...
Trying to find a thing to copy to send a erc-20 token from my bot. I found a few but they requre too much work
So more working
quaint rampart
it finds things that look like amogus in an image and puts squares around them
LMFAO
cinder patio
sus
quaint rampart
<@773630440606138408>
take my money
quaint rampart
Trying to find a thing to copy to send a erc-20 token from my bot. I found a few...
no idea what any of this means but sounds tough
i’m currently working on a sharex cdn with a dashboard i have everything done and working i just need one last thing which is a button to remove all your ss’s from the cdn pretty simple but just need to get around to doing it
boreal iron
<@773630440606138408>
hexed garnet
no idea what any of this means but sounds tough
Lel
simple stump
How would you calculate 1300 weighted towards 1105 by 50%?
marsh bluff
<@773630440606138408>
i need this bot in my life
boreal iron
How would you calculate 1300 weighted towards 1105 by 50%?
Wut?
wheat mesa
Math
wheat mesa
<@773630440606138408>
I’m just upset I didn’t think of this first 😔
wheat mesa
Still doesn’t make sense though
cinder patio
More like meth
My guess is they want a random weighted number
Where there's a 50% chance of getting 1105 and 50% any other number up to 1300
but I could be wrong
solemn latch
<@773630440606138408>
High quality bot
sudden geyser
step 1. find api that does ai image classification
step 2. interface with it
step 3. profit
split hazel
step 1. dont use deno
step 2. dont use deno
step 3. dont use deno
step 4. idk man use some ml library
marble juniper
Incase anyone thought that
split hazel
but i dont know if deno has any libraries like that
for node youd kind of just import tensorflow with mobinet and train a custom model
marble juniper
yeah ik how to do it for nodejs already
eternal osprey
How do i let a function run in js each monday?
cinder patio
How do i let a function run in js each monday?
sudden geyser
Idk why people even shit on deno
I don't think Speedy is hating on Deno.
sudden geyser
Ah
Me personally, I haven't seen any hate towards Deno.
I personally don't like it.
But it was very trendy and popular
But not something I'd ever seen in production
marble juniper
Wanna start a discussion about what deno / node does better than deno / node
aka what 1 runtime does better than the other
in certain aspects
cinder patio
Deno has better security measures... and that's pretty much it
sudden geyser
Sure, though I probably won't be able to name many.
I think "security" as its biggest advantage is just false.
marble juniper
Deno has better security measures... and that's pretty much it
And deno has native fetch
although nodejs is getting that soon
cinder patio
I wouldn't really say that's an advantage tho
marble juniper
That was kinda also the reason I loved using deno
sudden geyser
As it's just saving the developer from accidentally doing X during development, but probably has no application in production with end-users.
sudden geyser
And the security only accounts for a small fraction of all the security that actually goes into apps.
eternal osprey
cron.schedule('* * * Monday', () => {
console.log('running on ondayr');
});``` is this the correct cron-way of handling a function each mondayIt's still good to know nothing is going to write to disk, etc.
with node.js there are no guarantees
sudden geyser
with node.js there are no guarantees
But that's true of almost every language
cinder patio
yes but we're comparing two js runtimes
sudden geyser
Yet we don't block that because it's really just saving the developer, unless you got the user to somehow evaluate arbitrary code that would try to write a file
But you have more things to worry about if that's happening
sudden geyser
those aint languages
languages/runtimes/blah
marble juniper
I think its good that there isn't just a single and only runtime you can use
split hazel
```js
cron.schedule('* * * Monday', () => {
console.log('running on ondayr');
...
dont think so
i think its 0 0 * * MON
cinder patio
As long as the program isn't writing to disk during development then it's not going to during production, either.
sudden geyser
You're not Google though
sudden geyser
then you can cry in c plus plus
cinder patio
Maybe the biggest feature I dislike about Deno is that it has typescript support out of the box. It hides the JS output from you 😩
like why
lyric mountain
i think its `0 0 * * MON`
Never saw text in cron
sudden geyser
You can still write JS though
cinder patio
My problem is that it hides the JS output
lyric mountain
Ye, 1 to 7
lyric mountain
Oh true, confused with 0-based system
marble juniper
Maybe the biggest feature I dislike about Deno is that it has typescript support...
ts-node is a nodejs lib that does the same because its a JIT for typescript
so maybe deno has a JIT for typescript too idk
cinder patio
ts-node is a nodejs lib that does the same because its a JIT for typescript
Yes and I don't use ts-node, only when I want to run tests which are written in ts
sudden geyser
As long as the program isn't writing to disk during development then it's not go...
Yes, but where's the advantage then? Is it really worth considering runtime X over runtime Y because X may save you from accidentally writing to a file in certain scenarios?
cinder patio
Yes, but where's the advantage then? Is it really worth considering runtime X ov...
I don't like deno either, I just gave one of it's biggest distinct features from node.js
there isn't much
lyric mountain
Oh fck
marble juniper
sad
marble juniper
cringe
random but
I wonder if british people have ever seen the sun on a sunday
ok bye
split hazel
I wonder if british people have ever seen the sun on a sunday
yesterday actually surprisingly
final mica
h
simple stump
Can I require 2FA to be enabled for certain slash commands or text commands specifically?
Ex.
if (interaction.member.has2FA() && isStaff()) {
// allow cmd
} else {
// disallow cmd
}
The isStaff() is a placeholder for checking if the user has a Discord role.
sudden geyser
I don't believe so.
A server owner can enable 2FA on servers
But I don't think bots can check if a user has 2FA enabled
simple stump
If I were to check if an user has a specific permission (since 2FA blocks the user from utilizing actions that require BAN_USER, ADMINISTRATOR, etc.) could I theoretically check this?
Cause on my server I do have 2FA enabled.
split hazel
But I don't think bots can check if a user has 2FA enabled
@simple stump only way would be if they were to authorise with oauth2
that way you can check if they have 2fa enabled via a flag
sharp saddle
How i delete collection in mongodb?
I'm using the lib: Mongoose
split hazel
How i delete collection in mongodb?
I'm using the lib: Mongoose
should be able to just do
mongoose.connection.collection('collection-name').drop();
would be cautious with it though since mongoose might bug if you have active connections or models
earnest phoenix
How can I effectively destroy a express session when logging out
The last time I did so the session still existed and caused problems when logging in again(cause I thought it actually did get destroyed)
lyric mountain
You technically don't
All you can do is null the reference so the GC collects it on next pass
You can too forcefully free the port before starting the process
I do that for my spring api
quartz kindle
pretty sure thats not what hes talking about?
lyric mountain
Idk then
quartz kindle
well im assuming its about express.js and express-session
express-session has a session.destroy() method, but it also has third party session stores you need to check with their own store.destroy()
earnest phoenix
Mmm I see
Well when I called session.destroy it removed all the added stuff to the session and removed it from the session store but when I went to go to a route that requires a session to be there it told me I was already logged in
and logging in again just caused even more issues such as the new session not being saved to the store
Also the session never expired like it should have
quartz kindle
well i saw this on SO
you can try that
nvm that answer is from 8 years ago lol
plucky lion
how can dis apear (luca)
solemn latch
posting via the api
gilded plankBOT
earnest phoenix
well i saw this on SO
Mmm I think that might still work tho
Cause it is right it only deleted it in the db
so maybe setting the entire session to null as well might work?
earnest phoenix
[Nest] 42667 - 02/07/2022, 6:09:04 PM ERROR [ExceptionsHandler] null value in column "key" of relation "users" violates not-null constraint
So I keep getting this error even tho I have made sure that the key being generated is not null/undefined and it is returning a hash like it should so key should not be null when setting it
async generateKey(): Promise<string> {
const nanoid = customAlphabet("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0987654321", 32)
return await nanoid()
}
async registerUser(user: SignupDto){
const existingUser = await this.usersService.findOneWithEmail(user.email);
if (existingUser) throw new BadRequestException('Email is already linked to another account.');
let u = await this.usersService.insert({
...user,
key: await hash(await this.generateKey())
});
return {
id: u.id!,
email: u.email,
role: u.role,
createdAt: u.createdAt!,
updatedAt: u.updatedAt!,
key: u.key,
};
}
isn't it insertOne
earnest phoenix
No
this isn't mongo
I am using typeorm + pg
also insert is a custom method on usersService
async insert(data: Partial<Users>): Promise<Omit<User, 'password'>> {
const user = await this.usersRepository.findOne({ where: { email: data.email } });
if (user) throw new BadRequestException('Email already is linked to another account.');
if (this.sequence > 4194303) this.sequence = 0;
const newUser = new Users();
newUser.id = ((BigInt(Date.now()) << 22n) + BigInt(this.sequence++)).toString();
newUser.email = data.email;
newUser.password = await hash(data.password);
await newUser.save();
return {
id: newUser.id,
email: newUser.email,
createdAt: newUser.createdAt,
updatedAt: newUser.updatedAt,
role: newUser.role,
key: newUser.key
};
Actually I realized an error in my registerUser thing I am already checking for an email in the insert so no need to do so there as well :^)
But anyway for some reason the key is becoming null when trying to set it
earnest phoenix
don't make it null
Listen here you little shit
Hmmm I wonder
cough async insert(data: Partial<Users>): Promise<Omit<User, 'password>> {}
It is TS if you can't tell by me defining the types
So I found the issue actually
sudden geyser
to learn?
earnest phoenix
well i saw this on SO
So by the looks of it setting req.session to null works
since I want to delete the cookie on logout and also destroying the session at the same time helps as well
Now the only thing I need to do is instead of giving the hashed key in the cookie I should probably change it to the plaintext key
quartz kindle
👍
feral aspen
I was ghost pinged?
sudden geyser
who knows
quartz kindle
the ghost knows
sudden geyser
ghosts aren't real
quartz kindle
they are if they can ping people
quartz kindle
ye
sudden geyser
don't make me come for you personally
quartz kindle
tell your bosses i said hi
lament rock
I had a vague suspicion
earnest phoenix
Nope.. it was a `node` issue after all.
or a skill one
earnest phoenix
why my bot not starting bruhhh
it took like 2hours
same thing shows
can someone help ;-;
;-;
no reply
feral aspen
or a skill one
Node issue.
Unless you don't have the skill to understand what I'm saying. ;-;
earnest phoenix
Node issue.
can u answr me also..
lament rock
seems like everyone is so cut throat at each other. Geez
earnest phoenix
seems like everyone is so cut throat at each other. Geez
can u help me plz
feral aspen
lament rock
idk. Can I?
All jokes aside, idk what the error is. The screenshot you posted literally shows nothing helpful. Therefor, I cannot help you
earnest phoenix
All jokes aside, idk what the error is. The screenshot you posted literally show...
bro the main thing is it dosent start
just shows this
lament rock
why are you using npx
lament rock
why not just have the start command be just node .
if your package.json already links the main file as the index, then node . will work
earnest phoenix
if i start with node index.js token invid it shows
lament rock
Then there's your actual error. The token you're providing to your bot is invalid
earnest phoenix
Then there's your actual error. The token you're providing to your bot is invali...
hmm id think so
becuase i have changed my bot token sevral times
can it be wifi issue??
lament rock
Have you tried console logging the value of what you supply to the login to make sure you're not supplying it with undefined or anything unintentional
lament rock
Seems like you have more issues then if your package.json is empty. Good luck sorting that out
dry imp
good 4 u
slow terrace
Why it's not saving when i try to edit a value in the object???
console.log(data.progress.quests.find(x => x.id == 1).current) // Prints 3
data.progress.quests.find(x => x.id == 1).current += 1;
console.log(data.progress.quests.find(x => x.id == 1).current) // Prints 4
await data.save() // Not saving
same thing bruh
lament rock
I told you to remove npx
slow terrace
what is data. An entry from a database?
let data;
try{
data = await schema.findOne({
userID: message.author.id
})
} catch(err) {
console.log(err)
}
ah. Mongo. I don't think I can help with that. Sorry
mongoose or other wrappers are weird imo
earnest phoenix
when you remove it, do this
https://discord.com/channels/264445053596991498/272...
..
lament rock
Now you're getting somewhere. This actually helps me realize that you are not using node 16
earnest phoenix
jhmm
lament rock
the ?? operator only exists in node 16
earnest phoenix
idk
lament rock
you don't have to know. I'm telling you
earnest phoenix
the ?? operator only exists in node 16
yeah thats why using npx
lament rock
npx is an npm package runner that can execute any package that you want from the npm registry without even installing that package.
earnest phoenix
you don't have to know. I'm telling you
bro can i jsut invite u in replit?
earnest phoenix
npx is an npm package runner that can execute any package that you want from the...
oh
lament rock
No. I'm not gonna do work for you. Or anyone
earnest phoenix
...
dry imp
i love this kind of guys
earnest phoenix
help?
earnest phoenix
how?
lament rock
earnest phoenix
ok
earnest phoenix
the node npm package comes with a binary i believe
k
round cove
Was curious.
intents: [
Discord.Intents.FLAGS.GUILDS,
Discord.Intents.FLAGS.GUILD_MESSAGES,
Discord.Intents.FLAGS.GUILD_MEMBERS,
Discord.Intents.FLAGS.GUILD_MESSAGE_REACTIONS,
],```
Because I have `GUILDS` intents at the top that just implicitly means to include everything within the GUILDS intent group right? If so I want to be very picky about what events I get then to reduce the amount of events are emitted to my bot.
lunar palm
I believe so yeah
earnest phoenix
From my knowledge it does mean you will get all events related to guilds
round cove
I think I legit just need reactions because interactions will always be sent lmao
earnest phoenix
You might also need members if you will be dealing with members
cause no matter if its message commands or interaction commands members aren't always cached
earnest phoenix
Yea
earnest phoenix
Good rule of thumb is to not even attempt to do anything every x amount of time imo
round cove
The bot is pretty basic in terms of handling events.
earnest phoenix
I just don't like the idea of possibly hitting a ratelimit
round cove
User reacts -> give/take role
earnest phoenix
I think reactions you won't generally have to worry about I could be wrong cause discord will ratelimit them if they react too quickly
round cove
It's in >2k servers at the moment but I haven't seen any complaints so far from Discord.
earnest phoenix
Again tho I could be wrong
round cove
I'll just go as ham as possible until hammered
round cove
Lmao
I should be good.
Hopefully
Users can't complain if they hit the confirm button now.
lament rock
fetching is what you generally wanna do
the opposite is true. A lot of people are complaining about their bot eating too much ram, but they don't think about what data they're storing or if they don't even need it
round cove
I spent too much money on building my server to NOT use all ram and cpu process power
earnest phoenix
I just figured out how to use redis for the first time
Idk why some people say it is hard to implement took me 5m
{
"cookie": {
"originalMaxAge": 60000,
"expires": "2022-02-08T06:39:02.200Z",
"httpOnly": false,
"path": "/",
"sameSite": true
},
"passport": {
"user": {
"id": "6896703353510690816",
"role": 1,
"key": "hgOhCiwSHL29dRBVDwJAgms1YYjYkN5e"
}
}
}
I get the key from a redis store
lament rock
I spent too much money on building my server to NOT use all ram and cpu process ...
Gambler's fallacy. You will be paying absurd prices the more you scale. Solutions like such are not practical or economical if you literally do not have to.
round cove
Gambler's fallacy. You will be paying absurd prices the more you scale. Solution...
It was obviously a joke. 😔
lament rock
I just figured out how to use redis for the first time
storing it in your bot's heap or redis doesn't change the fact that it's stored in memory. In fact, I'd rather store in bot's heap due to access times
lament rock
It was obviously a joke. 😔
my bad then. I'm horrible at picking up on jokes from people I don't know too well
earnest phoenix
I can't store this in the processes memory
it is important information that if stored in a map and the map gets emptied im fucked
It is the only way to keep the api keys persistent so I can re add them to sessions when they expire for users
lament rock
redis doesn't have reliable persistence and it shouldn't be used
lament rock
No. Redis is a cache. "cache" implies volatile. If you wanted to store something persistently, you'd be better off using postgres or the likes. Data you need for a short amount of time, sure; Use Redis.
lament rock
Literally
earnest phoenix
Well I can still make use of it
I will need to cache some stuff
I will keep it implemented
lament rock
I used to dump all of my Discord gateway data onto it, but since I moved to slash commands, I do not need any cache anymore
earnest phoenix
I am making a platform so I kind of need cached data sometimes
lament rock
sitting at a nice 170MB consistently at 7k guilds and most of the heapdump is require.cache
earnest phoenix
I guess what I can do is make a table in my postgres db that just gets the plaintext key
tho I really don't like storing plaintext stuff in a db
lament rock
JWTs can be stored in redis
earnest phoenix
I didn't like the idea of using JWTs for this project
lament rock
that's valid
earnest phoenix
JWTs are nice for a smaller scale project i'd say but for something like this I want persistent logins and more flexibility
lament rock
Persistent and permanent logins usually are a security vulnerability
round cove
I use psotgres and just query for the data for each command.
No reason for in memory.
round cove
Postgres is fast enough.
earnest phoenix
read the error. What does it say?
chant find module
earnest phoenix
if i start with node index.js token invid it shows
Open shell and type cat replit.nix
If the file doesn't exist then you need to make a new repl or node can't run
lament rock
Okay. So, how do you remedy the fact that a module isn't installed
earnest phoenix
Open shell and type cat replit.nix
If the file doesn't exist then you need to m...
lament rock
You would install it, no?
earnest phoenix
can you run npm
there should be an npm dependency in the file too
Well looks like my best option is to save a plaintext version of the api key so I can readd it to the session's cookie to compare against the hashed version every new login
earnest phoenix
there should be an npm dependency in the file too
wherwe?
try doing npm i discord.js
k
lament rock
Well looks like my best option is to save a plaintext version of the api key so ...
If you're storing plain text, make sure the client never ever sees it
earnest phoenix
Yea I will
lament rock
good lad
earnest phoenix
try doing npm i discord.js
this happening
earnest phoenix
good lad
Actually that will be a bit hard since I am signing the plaintext key to the session's cookie
lament rock
rigid lark
this happening
it’s downloading
earnest phoenix
Unless there is a better way to authenticate things internally since a lot of the endpoints will be key protected
rigid lark
try running your bot again
no
rigid lark
read :/
earnest phoenix
i am using nix(beta) for node v16
send your package.json
what does discord.js need python for
{ "dependencies": { "@discordjs/builders": "^0.6.0", "@discordjs/opus": "^0.6.0", "@discordjs/voice": "^0.6.0", "@distube/soundcloud": "^0.2.2", "@distube/spotify": "^0.6.3", "@ksoft/api": "^3.1.9", "body-parser": "^1.19.0", "colors": "^1.4.0", "cpu-stat": "^2.0.1", "discord.js": "^13.1.0", "distube": "^3.0.0-beta.37", "ejs": "^3.1.6", "enmap": "^5.8.7", "express": "^4.17.1", "express-session": "^1.17.2", "ffmpeg-static": "^4.4.0", "http": "^0.0.1-security", "https-proxy-agent": "^5.0.0", "libsodium-wrappers": "^0.7.9", "memorystore": "^1.6.6", "os": "^0.1.2", "passport": "^0.4.1", "passport-discord": "^0.1.4", "session": "^0.1.0", "url": "^0.11.0" }, "devDependencies": { "node": "^16.6.1" }, "name": "music-bot-4", "description": "", "version": "1.0.0", "main": "index.js", "scripts": { "start": "node .", "node-update": "npm i --save-dev node@16 && npm config set prefix=$(pwd)/node_modules/node && export PATH=$(pwd)/node_modules/node/bin:$PATH", "node-clean": "rm -rf node_modules && rm package-lock.json && npm cache clear --force && npm cache clean --force && npm i", "node-update-then-clean": "npm run node-update && npm run node-clean" }, "repository": { "type": "git", "url": "git+https://github.com/Tomato6966/Musicium.git" }, "keywords": [], "author": "", "license": "ISC", "bugs": { "url": "https://github.com/Tomato6966/Musicium/issues" }, "homepage": "https://github.com/Tomato6966/Musicium#readme" }
Oh god
why does any package ever use python
lament rock
Unless there is a better way to authenticate things internally since a lot of th...
hash what you pass to the client and the server compares that hash to a hash of the plaintext the server stores and then authoritates if the client is authenticated or not
rigid lark
why does any package ever use python
“why not”
earnest phoenix
``{
"dependencies": {
"@discordjs/builders": "^0.6.0",
"@discordjs/opu...
code913
earnest phoenix
``{
"dependencies": {
"@discordjs/builders": "^0.6.0",
"@discordjs/opu...
I can assure you at least one of those dependencies was made by a drug addict
earnest phoenix
I can assure you at least one of those dependencies was made by a drug addict
bruh drug adiict? wtf
rigid lark
also, it says your package-lock is old
earnest phoenix
hash what you pass to the client and the server compares that hash to a hash of ...
But isn't storing plaintext anything in a db bad
earnest phoenix
I can assure you at least one of those dependencies was made by a drug addict
can i invite you code913 in my project?
earnest phoenix
can i invite you code913 in my project?
I am using my phone right now
rigid lark
i would suggest deleting it and rerunning everything
earnest phoenix
I am using my phone right now
k
thos is simple node
rm package-lock.json && npm i
in this is dopsent even start
rigid lark
rm package-lock.json && npm i
^
lament rock
The server should store plain text so it can compare when the user logs in. The hash is for the cookie. When there is a cookie, you check if the hash from the cookie is equal to a hash of the password.
The checks should always be performed by the server
earnest phoenix
The server should store plain text so it can compare when the user logs in. The ...
do it client side smh
earnest phoenix
rm package-lock.json && npm i
done
lament rock
Please don't meme about security. People might take you seriously
earnest phoenix
do it client side smh
cant i jsut use npm install discord.js
earnest phoenix
The server should store plain text so it can compare when the user logs in. The ...
So essentially I sign the hashed version of the api key to the cookie and then store the plaintext version in the db and when doing any protected route requests I just compare the hashed api key against the plaintext?
earnest phoenix
cant i jsut use npm install discord.js
your package lock file is corrupted
delete it and install every single package again
npm install would redownload every package
earnest phoenix
your package lock file is corrupted
delete it and install every single package a...
ok
lament rock
So essentially I sign the hashed version of the api key to the cookie and then s...
basically. Of course, you have to hash the plaintext to see if they do equate
earnest phoenix
your package lock file is corrupted
delete it and install every single package a...
i deleyed
earnest phoenix
basically. Of course, you have to hash the plaintext to see if they do equate
I don't really have to
argon2 has a verify function that takes in a hash and plaintext
earnest phoenix
your package lock file is corrupted
delete it and install every single package a...
shoud it delete all packages also??
lament rock
Then that should be fine if that's to compare
earnest phoenix
Tho I still need to store the hashed version anyway since I want to sign the hashed api key to a new session when old ones expire
I am now realizing how annoying making apis with api key protected routes can be
Unless I am just doing this in a dumb way which btw ophidian if you have a better suggestion I am all ears
lament rock
You should not do that unless you're doing like how Discord does it with tokens.
The first string before the . is the ID of the User. The second is the time the token was created. The third is random garbage
lament rock
Like how I suggested or do it "the discord way"
earnest phoenix
I can just rehash on every new session can't I
lament rock
Theoretically
earnest phoenix
As long as the plaintext is stored it doesn't matter what the hash is in the new session
lament rock
If the hash can decrypt to the plain text, then yes
earnest phoenix
I don't think you can decrypt a hash can u?
I am very iffy on my knowledge on encryption and hashing
lament rock
You can. It might take for-fucking-ever
lament rock
By decrypt, I meant if the hash is they plaintext before encryption. Idk how libs verify
lament rock
password 1234 might encrypt to abcd
if you have multiple hashes of 1234 which aren't equal, so long as the plaintext is 1234 and the lib can verify that the hash is just an encrypted version of 1234, then you're all good
But I would suggest the Discord way if you want multiple tokens
Like, I can get the first part of any bot's token just by the ID. The timestamp and the random garbage, you cannot
earnest phoenix
Mmm
How exactly does discord handle it internally tho
Like I am logged in rn right and I assume the token is stored in a cookie/localstorage right?
Do they use that token in the cookie to get my data from different endpoints?
and then how do they verify that token is valid
lament rock
Buffer.from(client.user.id).toString("base64");
earnest phoenix
they just base64 the token?
lament rock
No. The token is base64 of the client's id, the timestamp the token was created and then some random garbage
earnest phoenix
Mmm
earnest phoenix
ye
woeful pike
earnest phoenix
Wendy coming in with the lurk
lament rock
if you split the string by . the first entry is my client's ID
woeful pike
nice token I just logged into ur bot and downloaded all ur credit cards
earnest phoenix
I wonder what that random garbage at the end is probably some randomly generated string
lament rock
I guess the rule: "Forfeit all mortal possessions to the cat girl" still applies
it is randomly generated
hence why I said random garbage
earnest phoenix
So I understand the creation of the token
lament rock
mfa tokens are all random garbage
earnest phoenix
I assume they then sign that token to a cookie and what do you think they store in the db?
earnest phoenix
Oh I see
lament rock
the token provides all the info necessary
earnest phoenix
So they just compare token to token
So basically they just leave it up to the user if you share your token that is your fault
finally my bot is online now ooooof
lament rock
you can create relations from user name/email to user ID and then check if the token corresponds with that ID
the token contains the user ID in it
earnest phoenix
you can create relations from user name/email to user ID and then check if the t...
bro main problem was this spelling -_-
lament rock
so you can get user info by ID
earnest phoenix
Hmmmm
I think I understand
So basically if I do it that way I have no need to really sign my userID to the cookie?
i can just sign the token
and then decode it to get their userID and query the db that way right?
earnest phoenix
can i have a script for music bot 24/7 in vc??
lament rock
because they have the user ID, which can be predictable, but they also need the random garbage from the rest of the token to verify it is actually them
pale vessel
earnest phoenix
Yea
pale vessel
might be useful
pale vessel
yeah same I was looking through my archive channel for that
earnest phoenix
What is that HMAC shit
pale vessel
"random garbage"
lament rock
google says
In cryptography, an HMAC (sometimes expanded as either keyed-hash message authentication code or hash-based message authentication code) is a specific type of message authentication code (MAC) involving a cryptographic hash function and a secret cryptographic key.
lament rock
just random garbage to verify since you can't reliably guess random garbage
earnest phoenix
ye
woeful pike
so I'm guessing tokens are
id + time + hmac(id + time)
no. The last part is literally just random that follows no trend
asides from pseudo-random logic
but like I said earlier, multi factor authentication tokens are all random
lament rock
Yup. All of them are invalidated
earnest phoenix
Oh god how do I manage that.
lament rock
mfa tokens also expire every month
pale vessel
doesn't it mean you'd have to relogin every month?
pale vessel
or does it just regenerate
lament rock
on PC, that's what I have to do
earnest phoenix
I don't have ot login every month
woeful pike
I don't think it would be called an hmac if it wasn't some sort of digest of the rest of the token + a secret value though
earnest phoenix
Well discord uses oauth2 doesn't it?
woeful pike
unless they're using that term loosely
earnest phoenix
can i have 24/7 script for music bot like !join to join that vc in which person is in... then !leave to leave that vc like this
but 24/7
in my code i m like filled with errors
lament rock
It doesn't have to be the rest of the token because it's not useful on its own. It can just be a secret token that's hashed or just random bytes
woeful pike
write your own code bro
earnest phoenix
write your own code bro
to whome u saying?
woeful pike
the only person in the channel begging for copy paste
earnest phoenix
-_-
earnest phoenix
It doesn't have to be the rest of the token because it's not useful on its own. ...
I will pay you in hugs to do my authentication stuff for me ;)
this is a joke obv
woeful pike
It doesn't have to be the rest of the token because it's not useful on its own. ...
an hmac wouldn't be useful on its own either I imagine. But I just don't know enough to tell I suppose
lament rock
tempting
earnest phoenix
But that takes the fun out of coding wendy
you were on my ass before cause I didn't wanna do something like a json parser
lament rock
Whatever works for you. You don't have to be an expert in cryptology to have a secure setup. I'm not an expert, but I guess I put on a decent facade. Just thinking logically and from the perspective of what issue experts are trying to fix
For instance, if a hmac isn't useful on its own, then it can't reference anything else
earnest phoenix
Honestly I want something secure as well but I am not that smart when it comes to understanding some stuff so It takes me a bit to fuly understand
lament rock
Some libs do everything for you which is okay. My setup isn't secure. I just have permanent tokens the user inputs themselves and could theoretically share with others if they so desired
not that its a security concern since the resources they're accessing with the token hold very little weight
earnest phoenix
I just want something that will protect the user to a point where if their account gets compromised its not my fault its theirs
lament rock
sending plaintext to the client is definitely your fault
lament rock
earnest phoenix
I do like the idea of doing what discord does
its where I got my idea for the ids I use
I am just still a bit iffy on how to actually implement it properly so as to make it as secure as possible
lament rock
now you can definitely hash the IDs for the first part of the token. The rest is up to you
woeful pike
you were on my ass before cause I didn't wanna do something like a json parser
yeah but when ur json parser has a bug you don't risk leaking all of your users information 
earnest phoenix
Ayo uncalled for
woeful pike
actually that's not even true depending on the kind of bug I suppose
earnest phoenix
I will just make something that has bugs everywhere ez
lament rock
I probably couldn't write a JSON parser. Too much unexpected tokens
or more like a lot to account for
earnest phoenix
So Ophidian this is my thought process
- Generate a token (base64) of their ID + Timestamp + Some random garbage
- Store that token in the cookie and database
- Authenticate requests using the decoded ID from the token and compare tokens from DB to cookie
- Let the request through if successful else throw error
lament rock
looks a-o-good to me
earnest phoenix
why not use discord oauth
Cause I am stepping away from discord related dev stuff
lament rock
oauth is also a pain in the ass to dev
earnest phoenix
Cause I am stepping away from discord related dev stuff
the hero we didn't know we needed
At some point I might integrate the ability to login via discord
But that won't be for a good while
as I have no need as of now
isn't it better to always use a third party provider so you don't fuck up the security yourself
cinder patio
So Ophidian this is my thought process
1. Generate a token (base64) of their ID ...
Make sure cookie is Secure + Http only + Same site is set to strict
earnest phoenix
I am also doing this entire project on my own so if I don't talk here in a few days send help cause i've likely gon insane
earnest phoenix
Make sure cookie is Secure + Http only + Same site is set to strict
Already did so
lament rock
What happens if that provider gets hacked
earnest phoenix
What provider
earnest phoenix
If i fuck up the security myself that is obv a me problem and i need to be better
and it also means i am not ready to make a large scale app that quickly
earnest phoenix
Oh I know i am not ready
woeful pike
security is like super hard to do wdym
earnest phoenix
and it also means i am not ready to make a large scale app that quickly
reads the these guys trust us page on auth0
which is why I have no dead line for a release
I estimate it will take at least the entire summer to finish just the backend maybe even longer
lament rock
security is like super hard to do wdym
How Discord did it seems hella easy to me. I could code a system reimplementing that no problemo
earnest phoenix
Come do it for me /s
lament rock
assuming I wanted to
lament rock
I need money and sanity since I already maintain some Discord libs which is already a pain in the ass and also my bot. I basically manage my bot's entire stack. I even remade lavalink in js
earnest phoenix
😢
why put yourself through that pain
Tho I am probably about to experience hell with this project as well
Especially when frontend comes
😔
cinder patio
frontend's easyyy
pale vessel
I could do CSS but I'm not great at designing whatsoever
earnest phoenix
portfolio
Like the design ?
I was meming that description tho I didn't know what ot put
But anyway the design sucks
lament rock
why put yourself through that pain
because a lot of other's people's solutions are too expensive on system resources. Back when I was hosting on heroku, I made a plugin for Discord.js to disabled presence caches because gateway v6 was indiscriminate.
When that stopped being the end all solution, I just decided to migrate to the libs I now maintain, cloudstorm and snowtransfer and made a rest only cacheless Discord.js
I also didn't like how much lavalink consumed, so I remade that as well
woeful pike
rewrite it in rust but use .clone() to solve all lifetime issues instead of managing memory properly 
lament rock
Rust did not look appealing to me at all. The syntax was too much for my brain to process
woeful pike
it has a huge learning curve, very daunting I agree
cinder patio
The syntax is the best thing about it
lament rock
lament rock
Their ambitions are admirable
earnest phoenix
I just find a lot of it is confusing
lament rock
thats all ill say
cinder patio
A statically typed lang where everything is an expression 🤩
earnest phoenix
community has everything to do with a language imo
slender thistle
Yeah comparing it to py or js, rust has it better with its userbase
lament rock
I can imagine a lot of rust devs are like c devs and wear pink thigh highs
woeful pike
compared to "learn to code js idiot ahhahaha" it's a breath of fresh air talking to people in the rust community about code stuff
earnest phoenix
If it has a bad community I am less likely to use it as I can't get any good support on it
earnest phoenix
I can imagine a lot of rust devs are like c devs and wear pink thigh highs
pink top.gg custom thigh highs
😉
earnest phoenix
I have inside intel
I wont give up my source
My plan this summer is to get everyhting I need to make custom clothing
and make my own custom top.gg socks
earnest phoenix
how do u know about this
I also heard you guys have pink top.gg hoodies is this true?
lament rock
compiling a list of voice regions my bot comes across. If any of you have seen any not on this list, please tell me
lament rock
No. The rest api doesnt show all of them
for instance, only people in south-korea can see south-korea
this was a while back obviously, but not much has changed
earnest phoenix
compared to "learn to code js idiot ahhahaha" it's a breath of fresh air talking...
javascript is so easy an idiot can use it
and that's why so much javascript is pure bullshit
idiots usually have blue usernames/weeb pics
lament rock
can't you check through the rest API?
There are certainly a lot more voice regions than that
earnest phoenix
why so many us
lament rock
because I live in the us
and the us is first world
people complain about audio quality
earnest phoenix
corona isn't real yk
spark flint
idiots usually have blue usernames/weeb pics
Yes am idiot
earnest phoenix
4k weeb pic
lament rock
most likely idiots like myself
earnest phoenix
most likely idiots like myself
agreed
lament rock
lord have mercy on no colors
earnest phoenix
lord have mercy on no colors
colors.js have no mercy on javascript developers
slender thistle
lord have mercy on no colors
Ey you cunt!
lament rock
I don't mess with libs that offer console colors. Just a waste of disk space
slender thistle
I see you there, green looking bastard!
lament rock
It wasn't an insult. All I said was god have mercy
slender thistle
Tbh I could use some mercy indeed
Thanks for keeping us nocolors in your thoughts brother 🙏
lament rock
woeful pike
living rent free
slender thistle
The only place where I can spend the night in peace
earnest phoenix
lord have mercy on no colors
lgbtq matters!!!!!!!!!
slender thistle
What are their matters? Do they lead foreign relations?
earnest phoenix
idk
south elk
why
south elk
living rent free
How to do in javascript addrole command?
woeful pike
I don't understand why I need to be pinged for this question
or anyone for that matter
small tangle
from this behaviour i conclude hes using discord.js 
so you will need that https://discord.js.org/#/docs/main/stable/class/GuildMemberRoleManager?scrollTo=add
earnest phoenix
from this behaviour i conclude hes using discord.js <:kappa:679058919158448161> ...
civilised people use detritus
boreal iron
Good joke 
woeful pike
bruh I need to move my db over to a managed db but I'm using a custom image
how do I solve this dilemma
onyx socket
how do you check whether the bot is present with application.commands scope enabled...
I have system where the stored data is deleted when bot leaves the server...
But i have added slash commands now, it would required invite from the new links....but to invite using new links, servers will kick the bot first, and that will delete their data...
If there was a way, where if bot leaves with app.commands scope, it will deleted the data else not, hoping that the kick was for reinvite
opaque acorn
No
boreal iron
you’re officially speaking for 190000 guild members?
spark flint
woah fake has pfp again??
boreal iron
Of course there are but don’t ask to ask.
Ask your question and wait for a response.
boreal iron
woah fake has pfp again??
The most weird I found on my phone
spark flint
lol
spark flint
someone give me the name of a programming language (not in https://uwu.solutions/8iUzaS8X?)
cinder patio
someone give me the name of a programming language (not in https://uwu.solutions...
rust
spark flint
alr
spark flint
bruh why waste your time with this stuff
to prove to my computer science teacher that more languages exist
they think js and py and c# are the only langauges
woeful pike
cinder patio
you sure
eternal osprey
Hey i have a json file that looks like this: ```js
if(!test[message.member.id]) test[message.member.id] = {
name: [],
points: [0]
}``` How would i now get the top 7 entries that have the highest points?
she didn't know py for <variable> in <array>: existed
spark flint
my college course i'm doing next year teaches c#
eternal osprey
And like, put them in an order of:
- Highest points
- 2nd place
- 3rd place
etc etc
cinder patio
.sort and then .slice
eternal osprey
i was looking through the docs as i never really used sort that much
const array1 = [1, 30, 4, 21, 100000];
array1.sort();
console.log(array1);
// expected output: Array [1, 100000, 21, 30, 4]``` How does it sort?ascending, but how can this be ascending?
we go from 1 to 100000 to 21"?
spark flint
`string.parse::<i32>()`
error[E0369]: binary operation `<` cannot be applied to type `std::result::Result<u32, std::num::ParseIntError>```parse returns a result
spark flint
oh ok
cinder patio
You need to check if it's ok before doing anythign else
if Ok(val) = string.parse::<i32>() {
// val is guaranteed to be i32 here
}
YOU ARE WEAK
cinder patio
or if you're sure that it's going to be a i32 you can just do .ok()
woeful pike
let val = string.parse::<i32>().unwrap();
// val is guaranteed to be i32 here
REAL MEN
woeful pike
NO FEAR
cinder patio
imagine panicking 🤭
spark flint
thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: ParseIntError { kind: InvalidDigit }', main.rs:7:8```certified skill issue
cinder patio
you imagined panicking
spark flint
idk if you can tell but i don't use rust
woeful pike
yeah you just have to learn what a number is you idiot
spark flint
ah yeah i'm just stupid
woeful pike
I love this about rust tho
you can't just ignore errors
I mean you can but when you do, you know exactly where
and your program doesn't just log an unhandled exception, it completely dies
cinder patio
🤤
woeful pike
if you know you have an error you know it's not a usable value and vice versa. Unlike stupid go
spark flint
ok fixed it
fn main() {
use std::io::{stdin,stdout,Write};
let mut s=String::new();
print!("What is your age? ");
let _=stdout().flush();
stdin().read_line(&mut s).expect("Invalid input");
if s.trim().parse::<i32>().unwrap() < 15 {
println!("Sorry, you cannot watch this film")
} else {
println!("You are old enough to watch this film!")
}
}```ignore shit code
woeful pike
real unwrap hours
spark flint
i added .trim()
woeful pike
scoped use directive oh my
spark flint
it works so 
cinder patio
s.trim().parse::<i32>().expect("Invalid input")
woeful pike
at what point would read_line fail anyways?
This function has the same error semantics as
read_untilwill also return an error if the read bytes are not valid UTF-8. If an I/O error is encountered then buf may contain some bytes already read in the event that all data read so far was valid UTF-8.
hmm
cinder patio
How would you design it?
woeful pike
I guess it's a bit tricky because the function can fail partially
maybe something like this?
enum ReadLineResponse {
Success { bytes: usize, buf: String },
Fail { error: io::Error, buf: String }
}
also not really pretty tbh
cinder patio
```js
const array1 = [1, 30, 4, 21, 100000];
array1.sort();
console.log(array1);...
You have to provide a custom function to sort
cinder patio
maybe something like this?
```rs
enum ReadLineResponse {
Success { bytes: usiz...
I honestly don't know why you have to pass a mutable variable instead of the function just returning the buffer like you did, I think that's the most awkward thing about it
modest maple
woeful pike
I honestly don't know why you have to pass a mutable variable instead of the fun...
yeah that's the C-like part of it that bothers me
mutate parameters yuck, but at least it's all documented in types unlike C
modest maple
I mean the whole point is because its a stream
you dont want to be creating a new buffer every time potentially
far easier just to provide a mutable reference for that to fill the buffer instead a) for flow control and b) performance
woeful pike
yeah rust takes some shortcuts in the name performance like with these cases but it's still safe because of the language semantics
just ugly
modest maple
I mean it's also because its good practice
imagine if you wanted to read a line and a user passed you a 4GB line
and you have no control over how much you want to read into memory
thats what you'd have if you had it just internally do it
bearing in mind exposing it like this also allows us to use like virtual memory etc... without re allocating and/or having to first load into memory entirely anyway
cinder patio
yeah that's reasonable. Maybe the interface could be a little different though... like maybe have readline return a struct which you can .collect(), or .append(&mut buf)
modest maple
well by convention append affects self mutably not the other way around
and collect generally implies an iterator which can be drained and merged into a type without erroring
also for the most part in the real world, you just dont read console input like ever
cinder patio
well yeah you could think of the console input like an iterator, just throwing ideas around
modest maple
that would probably be quite in efficient
cinder patio
Just as an abstraction, ex. doing .next() would just read a single byte
until it hits EOF
eternal osprey
Feud, it is not possible what you stated.
The sort isn't applicable on nested objects right?
let database = {"key1": {points: [5]}, "key2": {points: [3]},"key3": {points: [4]}}
for (const key in database){
let g= database.sort(function(a, b) { return a[key].points - b[key].points});
console.log(g)
}```It works only for arrays
You could do Object.values(database)
Also get rid of that loop
also this is your daily reminder to stop using a json database.
makes it a lot harder and inefficient
with a proper database you could to this with a single query
modest maple
Just as an abstraction, ex. doing .next() would just read a single byte
sure but how do you handle that internally? Read a given buffer first and then do it? Or do you read one byte at a time and make a syscall every time? very easy to get very inefficient very quickly
woeful pike
order by gang
modest maple
cluster keys gang
woeful pike
all I know is when I have a knee jerk reaction to a design choice made on something as fundamental as doing IO, I know the people working on it have spent like 50x more time thinking over it than I have criticizing it
so there's almost certainly a good reason for it if it doesn't feel super optimal
cinder patio
sure but how do you handle that internally? Read a given buffer first and then d...
That's a good point 🤔
If I had to read from console once or twice I'd just use read_line, but if I had to read very very often at many different places I'd probably use an interface which makes it easier. It's a balance between memory and io calls. .next could read a chunk of bytes and save them into memory. When it runs out of bytes, get another chunk. until EOF.
modest maple
but how much buffer? What if the buffer read returns an error?
generally also allocations like that are better to be explicit rather than implcit
cinder patio
If it strictly has to implement the Iterator trait, if the buffer read returns the error then .next would return None as if it ran out of bytes to read, maybe a custom method to tell what exactly happened. If a custom implementation, .next would return an Empty / Err / Ok enum. As for the size of the buffer, /shrug
cinder patio
generally also allocations like that are better to be explicit rather than implc...
yeah that's true
maybe the max size of the buffer is something the user could define?
With a default if they don't
spark flint
main = do
putStrLn "What is your age?"
inputtedage <- getLine
let age = read inputtedage :: Integer
if age < 15 then print ("Sorry, you cannot watch this film") else print("You are old enough to watch this film!")```am i stupid
what is wrong with that
ok wait i fixed it
modest maple
well whats the error
spark flint
main.hs:5:71: error: parse error on input `then'
woeful pike
you don't use parentheses to call functions in haskell
spark flint
oh ok
woeful pike
normally you'd write this as
putStrLn $ if age < 15 then "Sorry you cannot watch this film" else "You are old enough"
equivalent to
putStrLn (if age < 15 then "Sorry you cannot watch this film" else "You are old enough")
the () is being used to group the big expression, not to call the function
getAge :: IO Int
getAge = read <$> (putStrLn "What is your age?" >> getLine)
decision :: Int -> String
decision age
| age < 15 = "Sorry, you cannot watch this film"
| otherwise = "You are old enough to watch this film!"
main :: IO ()
main = putStrLn =<< decision <$> getAge
kekw
lyric mountain
that's so shitty but...oddly readable
woeful pike
once you understand what all the symbols mean it's actually really pleasant
lyric mountain
what is <$> for?
woeful pike
f <$> a is the same as fmap f a where a is some kind of container and f is a function that converts the contents of the container to some other thing
it's a generalized version of array.map
or promise.then which are both the exact same thing conceptually
so you take a Promise<number> aka IO Int in haskell and convert it to IO String by applying Int -> String over it with fmap
getAge().then(decision).then(console.log) except in js >>= and <$> are both the same method .then for some reason
woeful pike
no but they are very similar concepts