Hi ! i want to write a smart contract witch receive my ERC20 token. i write a transferFrom but i need an allowance. Should i write a "approve in my contract ?"

the approve can't be called from that contract

the user has to call it on the erc20 contract

ERC20(myTokenAddress).approve(address(this),amount)?

This line before the transferFrom ?

where is this

not in token contract right?

in this way you are telling that contract to approve itself

Yes .. i wonder if i can write this in the contract but that not make sence

how can i do if i want that the user (any wallet) can approve (or not) the transferFrom?

when i try transferFrom, i get error because of allowance

I told you

.

sorry i don't get really get yet.. 1- i write a smart contract: contract FreezyToken is ERC20{constructor() ERC20("FreezyToken","FZ"){_mint(msg.sender,10*10**10)}} 2- i write another smart contract: contract FreezyJoke{}

Gosh, if you (msg.sender), you need to call approve manually

then the contract you are interacting with, can call transferFrom

the contract calls approve when it gives allowance to another contract to the tokens its address owns

ok ! i get this

but when i interact with exchange, with the same button there are two transactions : approve and transferFrom without i previously approve the dex smartContract. Thus, how this contract is write?

exactly

the approve tx is not on the router contract

is on the erc20 contract

you give approve to the router for the tokens you have, then the router calls transferFrom and transfers the tokens to the pair

https://github.com/Uniswap/v2-periphery/blob/0335e8f7e1bd1e8d8329fd300aea2ef2f36dd19f/contracts/UniswapV2Router02.sol#L267

Ok. I think that i get it more.. thanks

Hey Freezy

My BNB wallet got hacked. The moment I send it some BNB it sends it to a hacker’s wallet. Is there something I could do to stop it ? 🥺

you wallet is compromised

change it immediatly

I have some CAKE staked.

Till April 2023

How ?

you probably pasted your private key somewhere

If I send some BNB to transfer tokens. It just sends all BNB immediately to another wallet

share tx

https://bscscan.com/tx/0x75d7a652623950b00c2c057d536350bcb16fd1774ed03c74d5d29b2fe2a05d06

compromised

Probably to GitHub. Happened to me

I can’t do anything ? 🥲

change wallet

I don’t have anything on it except CAKE
Which will get unstaked in April

But if I send BNB on that address
It automatically sends it to hackers address

🥲

exactky

change wallet

don't use that wallet anymore

Was it a lot?

Almost 300$

In today’s price

Yeah just forget about it

It’s gonzo

Shall I increase the stake period to 10 years ?😂

You could try send bnb for fee, unstake cake and transfer cake out all in one block. This guy sweeps wallet with max gas, so its always gonna be on next block

He can still rescue it

Flashbots whitehat team only rescues if the amount is above 1k

If you are polite about it they will help anyways

I wish I knew how to do these things but I still have time till April 😬

Who are they ? 😅

Ser this BSC

300 > 1000

They rescue even in bsc

https://docs.flashbots.net/whitehat/

What is Gonzo?

Since when does flashbot supports bsc :o

if you mean "mev boost" it does not

their product has nothing todo with their whitehat team

and i think you can trust them

Thanks everyone

Will try to get it if I could else will just increase the period. Or wait I won’t be able to. It requires tx fees too 🥲

Ah so they doing this basically

i mean yes

haha im saying this because its common

Super useful tool

Phalcon as well

https://phalcon.blocksec.com/tx/eth/0x4bc92d128f9a814156d19ef561fe6e8e0392f6bcbd093aefdf21132083bac3f5

https://watchers.pro/#/token

and his one

You are a web3 Wikipedia

In PM only, more than 50-100

Hey a question

My address had a few 2-3$ worth of several coins
The hacker guy deposits some BNB
transfers the token
And takes out any remaining BNB

How is he able to do it ?

Why would he be NOT able to do that?

Owning the private key means to control pretty much everything about that address

He’s doing the same thing you said ?

Like doing deposit and taking tokens out in one block and in the next block sweeper bot takes the remaining BNB

Yep he's doing the same

He doesn’t need to do that, he can just swap normally

You’re the one that needs to find a way to beat his bot

Bot wars

No but i checked the tx
All his previous transactions work this way.
Two transactions in one block
The third transaction takes the remaining BNB

I would need to create a bot too ? 🥲

So many unlimited
https://bscscan.com/tokenapprovalchecker?search=0x3fe0d09d5819ff1a17d9d63d99e46088213358ac

this is the minor issue if he has the wallet compromised

The man loves adrenaline

Ping me some days before, i can try to frontrun the sweeper bot you got on your wallet

creation of MultiSig errored: Error encoding arguments: Error: expected array value (argument=null, value="[0xEAe38e8d41aeCC027e1b68c31f7039Ae95651D4D, 0x8db97C7cEcE249c2b98bDC0226Cc4C2A57BF52FC]", code=INVALID_ARGUMENT, version=abi/5.5.0)


I can't seem to get rid of this error
I am trying to deploy a MiltiSig wallet using remix on it's VM but I am getting this error

The way I pass in the array is
[0xDB9B936373f859Ce8C580Bbc35b0Eab89cA9fd70, 0xDB9B936373f859Ce8C580Bbc35b0Eab89cA9fd70] etc.
What am I doing wrong please

What are you trying to do?

I'm creating a MiltiSig wallet
In the constructor function, I'm passing in an array of addresses

use "0x" on remix

instead of 0x
for addresses

Okay thanks
When I recharge my PC, I'll do so

Sure man
Thanks 🥲