Questions tagged [uniswapv3]
The uniswapv3 tag has no usage guidance.
192
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5
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How to create order book from uniswap liquidity?
I previously understood that you pull the bitmap for the initialized tick ranges then iterate over the words.
You take current liquidity and subtract net liquidity when you're below the current tick ...
- 247
1
vote
1
answer
82
views
How to Accurately Compute Tick Liquidity in Uniswap V3?
I am trying to compute tick liquidity for the ETH/USDC pair in Uniswap V3 within a range of +-10 tick spaces from the current tick. I'm querying pool and tick data using The Graph API. However, I've ...
- 11
0
votes
1
answer
17
views
Tick range of negative tick - Uniswap v3
I am looking for a formula to calculate the tick range for a negative tick.
Ex1:
tick: -15
tickSpacing: 10
range: [-20, -10)
Ex2:
tick: -20
tickSpacing: 10
range: [-20, -10)
I was ...
- 197
0
votes
1
answer
28
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UniswapV3 Quoter throws error: contract runner does not support sending transactions (operation="sendTransaction", code=UNSUPPORTED_OPERATION)
I am working with the Quoter from Uniswap V3, here is the part of the function that challenges me:
...
// Reformat Amount In
if (!isNaN(amtIn)) {amtIn = amtIn.toString()}
let amountIn = ethers....
0
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1
answer
15
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Uniswap V3 Pool_Init_Hash calculations
I'm trying to do calculations for determining pool addresses. However my INIT HASH keeps being wrong.
I found some code which calculates pool addresses in a different way
export const ...
- 271
2
votes
2
answers
32
views
Extract the amounts(t0, t1) for non-current tick from Uniswap v3 Pool
I want to get the amounts of the tokens for a tick range which is higher or lower than the current tick.
For example I have current tick: -282986 with range [-282990, -282980], I want to get the ...
- 197
0
votes
0
answers
22
views
Custom V3 router (Is it a Universal router)
I came accross a concept i have no idea about. The concept of custom router. As per my research may be Uniswap V3 is offering Universal router. Is it possible to deploy instance of universal router as ...
1
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2
answers
32
views
UniswapV2's equivalent of getPair and other functions
i see uniswapv3 quoter or factory or router contracts doesn't have getPair, getReserve and other similar ABI functions like UniswapV2. does UniswapV3 have Equivalent for this functions? or did they ...
- 49
1
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0
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12
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Convert UniSwap ID from Graph Query to position token id
I'm sure, the answer is very simple, still I can't figure it out.
I know I can get a list of all active UniSwap positions (not closed) positions by querying the subgraph (I'm on Arbitrum):
query ...
- 31
1
vote
1
answer
90
views
Extract the amounts(t0, t1) per tick from Uniswap v3 Pool
I want to be extract the amounts of t0 and t1 from a Uniswap v3 Pool.
I was trying with some method which I found on other post, but I think is not working, or I am doing something wrong.
This is the ...
- 197
1
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1
answer
36
views
Use the swapExactETHForTokensSupportingFeeOnTransferTokens method of uniswap routerV2 to purchase uniswap V3pair tokens
const buyToken = async (account: any, tokenContract: any, gasLimit: any, gasPrice: any) => {
let amountOutMin = 0;
const amountIn = ethers.utils.parseUnits(useBuy.value.toString(), 'ether');
...
2
votes
1
answer
173
views
How can I get all tokens listed on `Sushiswap`
How can I get all tokens listed on Sushiswap. For uniswap we can call factory.getTokenWithId(id) with the token id. But how can we do the same for Sushiswap ?
- 149
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1
answer
13
views
What is the usual gas fee by deploying innicial liquidity to my eth token?
Wanted to know what gas fees I need to expect when adding initial liquidity to my eth token.
I removed liquidity for about 11 dollar gas. Now I want to add a new tokenpair and set with it a new price ...
- 1
1
vote
1
answer
79
views
When minting a new position why does one token is used up fully and the other is not?
i am using this code to create and initialize a pool and mint a new position on it.
// 1 ETH (y) = 2000 USDC (x)
pool = IUniswapV3Pool(factory.createPool(address(weth), address(usdc), 500));
pool....
- 27
0
votes
1
answer
55
views
How to call `quoteExactInputSingle` on quoter2 uniswap using python
I'm trying to call like this in ape
def SushiswapV3quoteExactInputSingleV3(
router,
_from,
tokenIn: str,
tokenOut: str,
fee: int,
amountIn: int,
sqrtPriceLimitX96: int = 0,
...
- 149
1
vote
0
answers
21
views
How can we get the result of swap in curve.fi like `getAmountsOut` for uniswapV2
I'm trying to get the price for the swap WETH->DAI by calling get_dy but there is no direct pool in curve. I went to the UI & put in this swap & got this. tricypto: WETH -> USDT -> ...
- 149
1
vote
2
answers
108
views
How a price of a token is being calculated on uniswap & other dexes?
I have just started learning about Uniswap. I have a question, How a price of a token is calculated? I know the x*y = k which defines the price of 2 assets from a pool but how the value of a single ...
- 149
1
vote
1
answer
54
views
How to get correct liquidity amount on UniswapV3 for each token(pair) via web3.js?
I'm trying to create a bot that will send me new LPS notifications on Uniswap V3 and in the future more dexes. I want to contain in the message specific data like amount of token and ETH in the pool, ...
- 131
0
votes
1
answer
52
views
AddLiquidity to pool: Uniswap V3 Pool Deployer and PoolAddress.computeAddress() make different pool addresses
I have deployed all UniswapV3 contracts locally in a Foundry test, then tried to mint a new position following https://docs.uniswap.org/contracts/v3/guides/providing-liquidity/mint-a-position
I ...
- 1,762
0
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1
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75
views
Error: invalid signer or provider (argument="signerOrProvider", value={}, code=INVALID_ARGUMENT, version=contracts/5.7.0)
import { AlphaRouter } from "@uniswap/smart-order-router";
import { ethers, BigNumber } from "ethers"; // Import BigNumber from ethers
import { Token, CurrencyAmount, TradeType, ...
- 11
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votes
0
answers
25
views
Is there anyway to reduce gas fee for uniswap v3 ExactOutputSingleParams?
Question is simple. Is there anyway to reduce gas fee for ExactOutputSingleParams ?
function swapExactOutputSingle(uint256 amountOut, uint256 amountInMaximum) external returns (uint256 amountIn) {
...
0
votes
0
answers
20
views
Why a Uniswap/PancakeSwap emits same event multiple times
does someone know why Uniswap/PancakeSwap pairs occasionally emit the same Swap event multiple times?
There is it an example on dexscreener on WBNB/USDT:
I happen to also catch it in my script that I ...
- 101
1
vote
0
answers
102
views
Uniswap v3: calculate tickLower and tickUpper
I want to create a pool on Uniswap V3 with a specific price. For example 1 Dev token eq 0.1 USDC, Dev token has 18 decimals and USDC has 6 decimals, code for create pool:
const POOL_FEE = 500
const ...
- 171
0
votes
0
answers
49
views
Error INSUFFICIENT_INPUT_AMOUNT when trading pancake
A newly created token contract is normally traded on the testnet,
Published to the main network, this error occurs when selling coins INSUFFICIENT_INPUT_AMOUNT;
https://pancakeswap.finance/swap?...
- 1
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0
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83
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ProviderError: transaction would cause overdraft when using Uniswap V3 router on Goerli testnet
I tried to call a smart contract (UniswapV3Swap.sol) from another smart contract (UniswapV3Connector.sol). I want to call the swapExactInputSingleHop from UniswapV3Connector.sol, however, the ...
- 11
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2
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336
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Why gas fee on Uniswap is far far higher than normal gas fee
The transaction fee for swapping tokens on Uniswap is significantly higher than the normal Ethereum transaction fee. I wonder why?
Note: You can obtain real-time gas fees from https://etherscan.io/...
0
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0
answers
75
views
Got different prices from SqrtPriceX96 and from Tick on Uniswap
I trying to get price (ratio) from pool on Uniswap v3 by JS with ethers.js.
But I got a slightly different prices from SqrtPriceX96 and from Tick, for some reason.
SqrtPriceX96 and Tick took from '...
- 1
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0
answers
131
views
Who can me give me detailed steps to fork Uniswap on v3?
There !
I m forking uniswap v3. Already downloaded v3-core, v3-periphery,interface repository, but I can't customize them. Especially in Interface, I can't find the way how can integrate smart ...
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0
answers
28
views
Uniswap V3: how to get maximum NFT Position token Id?
I want to get the maximum NFT Position ID to make calculation on a Pool over all NFT Positions. How to do that ? Can I do that using the blockchain ?
- 101
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20
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Determining the Percentage of Uniswap V3 Trading Volume from Arbitrageurs vs Regular Traders
I am trying to understand the trading dynamics on Uniswap V3. Specifically, I am interested in finding out what percentage of the trading volume on Uniswap V3 comes from arbitrageurs versus regular ...
- 1,074
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0
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5
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Why is computedFee too small when using function?
I tried to calculate computedFee according to this page: https://www.metacrypt.org/tools/uniswap-v3-calculator-simulator/?network=ethereum&token0=0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2&...
- 1
0
votes
0
answers
151
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How can I find Smart contract address deployed in sepolia testnet?
I'm finding contract address of SwapRouter and Quoter which is the contract of uniswap version 3.
Of course Goerli address is in uniswap doc. But I want to know the address in sepolia.
If anybody know ...
0
votes
3
answers
205
views
I want to swap ETH to any other token using Uniswap V3 and Remix IDE. I am trying it on Goerli Testnet
I am trying to swap ETH to any other coin on Remix IDE and using Uniswap V3 on Goerli Testnet. I am able to deploy the contract but the moment I am trying the swap function, it says execution reverted....
0
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0
answers
102
views
Uniswap V3 Pool initialization
As I was doing research on Uniswap V3 pool esp. about adding liquidity to such a pool, I found the initialization takes some non-trivial sqrtPriceX96 that is coming from nowhere. When a pool is ...
- 633
0
votes
0
answers
24
views
How to estimate input amount for sushiswap?
For estimation of input amount of tokens while calling quoteExactOutputSingle I use following for uni v2
const pair = await Fetcher.fetchPairData(tokenFrom, tokenTo, provider);
const route = new ...
0
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0
answers
124
views
Uniswap v3: How do I get the path bytes from solidity from array function parameters?
I am trying to write a smart contract that can facilitate multihop swaps. It is important that I am able to pass in 2 arrays into the swap function: an address[] of the tokens and uint256[] of the ...
- 1
1
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1
answer
28
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it’s possible that swap transaction get executed some blocks later
i want call X function, there are multiples external calls in this function.one of this external calls is a DEX trade. it’s possible this DEX trade transaction get executed in the some blocks later or ...
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0
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99
views
Mint new position fails uniswap v3
I am using the code example of uniswap to mint a new position and add deposit: https://github.com/Uniswap/docs/blob/main/examples/smart-contracts/LiquidityExamples.sol
Below is my code:
/// @notice ...
- 289
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1
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29
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How come for some Univ3 swaps, the price of the pool after a buy is *lower* than the price paid for the swap? This should not be possible
First off, I'm fully aware of concentrated liquidity on Univ3. This is not a question about that.
Regardless of concentrated liquidity or not, it is my understanding that the swap price a Buyer is ...
- 157
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0
answers
61
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How to convert price to sqrtPriceX96 in solidity?
This question asks how to convert sqrtPriceX96 to price in solidity, but I can't find information on doing the inverse.
How do you turn a price e.g. 55 ether into its sqrtPriceX96 with full precision?
...
- 598
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0
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5
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V3 Position Sent to CA
We wanted to see if it is possible to collect fees from our UNIV3 position that we sent to our token contract?\
Thanks!
- 1
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1
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55
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Is there any significant advantage that UniswapV3 has over UniswapV2 in a Flashloan(or Flashswap) scenario?
I have been following the flash loan market for a while and I want to eventually experiment on it but i am having a hard time choosing between UniswapV2 and uniswapV3 for making my swaps. Is there any ...
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2
answers
1k
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UniswapV3 Swap Router Sepolia Address
Have been looking for UniswapV3's SwapRouter's deployed address on the Sepolia Test Network. For some reason the Unsiwap has't provided us with the Sepolia deployed addresses.
Can someone help me here....
0
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0
answers
129
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How to create a Multicall Swap Multihop in JAVA based on Uniswap V3?
Recently Uniswap And Pancakake swap launch thery v3 contracts, so the way of we do a swap changes now.
Is there someone that know how to do that in Java or Kotlin?
I'm asking for a Multihop, because ...
0
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0
answers
22
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How to simulate and minimize the price impact by splitting a large purchase into smaller chunks and over a number of days?
Let's say a trading firm wants to buy $5 MIL worth of SYN (https://www.coingecko.com/en/coins/synapse) in Uniswap V3 pools. SYN currently has a market cap of $135 MIL. I know how to calculate the ...
- 103
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0
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58
views
Uniswap v3 offline price calculation
Is there an off-chain way to calculate amountOut for a pool, for any number of tokens in? I know I can do a RPC call, but I want to try a large amount of prices and that is inefficient. I would rather ...
- 101
0
votes
0
answers
79
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Calculate uniswap v3 fees for position from swap events
I need to calculate uncollected fees for uniswapV3 position let's say from yesterday.
I scanned for all swap events in the liquidity pool and saved them to my DB. Also I have in the database all ...
- 1
0
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1
answer
121
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AttributeError: 'exactInputSingle' object has no attribute 'buildTransaction'
I want to swap tokenA to tokenB. Thequestion heppened:
File "E:\Code\pythonProject\infura_API_test\3_swap_by_web3_py.py", line 76, in <module>
tx_swap = router.functions....
- 1
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votes
0
answers
86
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Trying Uniswap V3 Swap Example - Error: Transaction reverted: function call to a non-contract address
Have been getting bellow error message:
SwapExamples
swapExactInputSingle:
Error: Transaction reverted: function call to a non-contract account
at SwapExamples.swapExactInputSingle (contracts/...
- 1
0
votes
0
answers
31
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In a UniswapV3 pool, where do fees live?
I'm trying to understand fees on UniswapV3. Not how to compute them (this has been well-covered and is not difficult to understand) but how they actually work in the code itself. The main question is: ...
