All Questions
Tagged with defi blockchain
16 questions
5
votes
1
answer
2k
views
Error: Transaction reverted: function returned an unexpected amount of data, Pancakeswap
I really need your guy's help as I'm stuck in this for a week. Actually, I'm implementing a swap function on pancakeswap, I'm following this documentation. I'm doing swapEthForExactTokens but getting ...
- 277
3
votes
1
answer
42
views
What are the countermeasures for losses in decentralized finance platforms like Aave?
I am a newbie in the blockchain/Web3 space and trying to understand the AAVE protocol.
Suppose a borrower deposits 1 ETH whose value is 500 DAI Tokens(500$) as collateral to borrow 100 DAI Tokens(100$)...
- 31
2
votes
1
answer
2k
views
Why we sort tokens in uniswap functions?
function sortTokens(address tokenA, address tokenB) internal pure returns (address token0, address token1) {
require(tokenA != tokenB, 'UniswapV2Library: IDENTICAL_ADDRESSES');
(token0, token1)...
- 81
2
votes
2
answers
531
views
Configuring amountOutMinimum while swapping through Uniswap V3
I am trying to build a smart contract which performs a multihop swap using Uniswap V3 but wherever I have seen the tutorial, amountOutMinimum is set to 0.
In Uniswap V2 there are several ways to ...
- 21
1
vote
3
answers
117
views
DAO Governance Off Chain
What are good methods for DAO decisions to be implemented off chain? If a company is looking to start a DAO to manage a specific centralized service (say a website, manufacturing plant, etc) through ...
- 11
1
vote
1
answer
115
views
Where can i found advanced courses about blockchain security?
Where can i found advanced courses and walkthrough box like TryHackMe and HackTheBox, about blockchain security and Defi, ethical hacking with challenges todo to learn about it.
Best regards
1
vote
1
answer
2k
views
How to access or calculate slippage from Uniswap-V3 trades on-chain?
I know we can extract swapping information on a Uniswap V3 LP pool (for example - https://info.uniswap.org/#/polygon/pools/0xefa98fdf168f372e5e9e9b910fcdfd65856f3986). Is there a way to find out the ...
- 123
1
vote
0
answers
550
views
Argument of type '(address: any) => void' is not assignable to parameter of type '(this: Suite) => void'
I'm trying to implement the pancakeswap router functions. I've forked the mainnet with hardhat and then tried to receive the addresses with typescript. I'm using the typescript for the first time and ...
- 277
1
vote
0
answers
49
views
How do farming/staking platforms really profit? [closed]
Sorry if this question isn't directly related to Ethereum, but to DeFi in general.
I understand how we, users of platforms like PancakeSwap, Aave, Curve and such, can profit from these platforms when ...
0
votes
3
answers
404
views
what does ternary operator Uniswap createPair function does?
function createPair(address tokenA, address tokenB) external returns (address pair) {
require(tokenA != tokenB, 'UniswapV2: IDENTICAL_ADDRESSES');
(address token0, address token1) = ...
0
votes
2
answers
486
views
how to build Defi app from A to Z
I'm a java developer and a newbie with blockchain. I want to build a simple Defi app with a simple smart contract. please tell me know steps by steps to do that?
how to setup environment?
which the ...
- 1
0
votes
1
answer
25
views
How collateral is distributed to token side (L or S) in perpetual pool?
I am trying to implement a distribution of collateral deposited in the pool but I am not getting how it should be distributed in the perpetual pool.
0
votes
1
answer
2k
views
Error on pancakeswap, web3 python
I try send transaction but i get error.
https://bscscan.com/tx/0x3e716bc5d0500e8284de39c809a0251d07b0b3648591bf09fbafbb4dea633a34
I use web3.py
tx_params = {
'from': wallet,
'...
- 39
0
votes
0
answers
8
views
Missing transaction [duplicate]
MISSING TRANSACTION
I have no idea what went wrong here but I had tried to send two tokens to my coinbase wallet from my crypto. Com defi wallet . And it never arrived . I also messed up and sent a ...
0
votes
0
answers
74
views
Why do number of tokens I put in liquidity pool reduce? - Impermanent loss
Why is it that when the price changes, my number of tokens is reduced and not the price of each token?
Shouldn't the number of tokens I hold stay constant so here I would still have 10 A and 10 B ...
- 83
0
votes
1
answer
30
views
Can someone tell me best De-Fi learning resources
I want to learn building some complex smart contracts for borrowing, lending, flash loans etc.
Links to some resources or github repos would help, Thanks!!
