Questions tagged [pancakeswap]
PancakeSwap is a Binance Smart Chain-based DEX launched by anonymous devs with a penchant for breakfast foods and rabbits. It looks a bit like Ethereum's SushiSwap (community governance, the ability to farm liquidity provider tokens), but also incorporates many other features that let you earn rewards.
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How to fetch tokens amountOut on different DEXes on BSC?
guys! I am new in DEX trading robots development and I ask you for help in understanding/explaining pretty basic and simple things to me.
First of all, I want to do the most basic thing we can imagine:...
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pancakeswap v2 flash loan arbitrage real output amount is not as expected
when i monitor a profitable trade. The difference in profit calculated by my own method and the result of getAmoutsOut is not significant. Before sending the transaction, I would use the getAmoutsOut ...
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How can I make a multicall transaction using web3.py and pancakeswap router?
I need to do a multihop swap. For example : BNB->USDT->TOKEN. I am trying to do this swap using pancakeswap roter v2 swapExactETHForTokens method. But I get execution reverted
swap_path = [...
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0x protocol swap api not fetching liquidity from pancakeswap
I created a liquidity pool on pancakeswap for an asset pair for goerli network. I get this error when i try and fetch the price.
here is the api request
https://goerli.api.0x.org/swap/v1/price?...
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Deploying with hardhat : ProviderError: INTERNAL_ERROR: could not replace existing tx
I am trying to deploy pancakeSwapv3 contracts on goerli network. I have been able to do it successfully on hardhat network and also on BSCtestnet, using the pre existing deploy script provided in the ...
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how to buy tokens with python web3 in pancakeswap v3
can someone give me an example of how to buy tokens in python web3 with the v3 version of pancakeswap? I don't understand what parameters I have to pass to the multicall() function.
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Pancake swap hack
I have been recently victim of a pancake swap by buying some custom token.
My Ledger and my Metamask were connected to pancake swap while i tried for the 1st time a Crypto Pump found on Telegram (a ...
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Token fee in my contract error in pancakeswap
I have created a logic in my contract by modifying the transfer function, so that it debits from the total amount arriving the taxes I need, then those taxes are sent to the same contract and ...
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I bought a token the amount appear in bscscan but not in pancakeswap
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I bought a token; the token amount appears on bscscan.com but not in the pancakeswap.
The token has a 100/100 rate on the token sniffer website.
this link is the token contract: https://bscscan.com/...
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Lost tokens on pancakeswap
I did a small swap on pancakeswap (metamask wallet) in order to understand how the whole stuff work, so i swapped 2 usdt into ONPAY coin, i did import it in my wallet, then i checked and it was in the ...
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removeLiqudityWithPermit: Invalid Signature
So, I am trying to remove liquidity from a pancake v2 pair and I do not understand why this is not working. I am looking at the code, and I've triple checked every value, I don' think I am doing ...
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How can I make a flashloan bot
How Can I make a flash loan bot which can operate on Aave, uniswap, sushiswap etc? I know a furucombo, but this is too complicated for me. My Idea is the bot will keep an eye on certain tokens & ...
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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 ...
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web3.py is not routing properly as pancakeswap finance GUI
I have a script in python in order to execute a multicall using pancakeswap V3 router contract. Muticall sells some tokens using "swapExactTokensForTokens" from the contract. The path ...
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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?...
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Pancakeswap swap fails with INSUFFICIENT_OUTPUT_AMOUNT error
I'm trying to make a swap on the Binance testnet using Pancakeswap. I keep getting an INSUFFICIENT_OUTPUT_AMOUNT error and I have no idea why. Here is my code:
const ethers = require('ethers');
const ...
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Can't SWAP on Pancake Rooter with web3.py
I try to make a function that calls swapExactTokensForTokens on pacakeswap v2 rooter. The approval is mined, so is the swap. But when i check on bscscan, the contract execution fails for the swap (not ...
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swapExactTokensForETH / swapExactETHForTokens on pancake swap doesnt swap
I need to convert some eth to another token in my unit test. I work on alchemy fork and ethers.js. I am trying to do it using pancake swap:
it("should use pancake swap to get some tokens&...
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Cannot get info about position in liquid pool
I tried to get my position info in PancakeSwap liquid pool. I want to know how much token0 and token1 I added and how much uncollected fees exist.
I found this field in PancakeV3Pool contract:
mapping(...
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Why can't I swap the token using swapExactTokensForETHSupportingFeeOnTransferTokens?
i use the function swapExactTokensForETHSupportingFeeOnTransferTokens web3 py for swap MATIC to WBNB, but always get errors what is wrong with my code?
input_token_address = web3.toChecksumAddress('...
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Why can't read the transaction using web3.py?
I'm trying to decode transaction input using the web3py but I'm getting an error.
ABI i got here: https://bscscan.com/address/0x10ED43C718714eb63d5aA57B78B54704E256024E#code
pancakeaddr = '...
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Unable to do swap via swapExactTokensForETHSupportingFeeOnTransferTokens
What seems to be the issue in this code I am unable to swap tried everything:
function transferFrom(address sender, address recipient, uint256 amount) public {
require(sender != address(0), ...
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Adding Liquidity Pair in PanCakeSwap V2 Testnet BSC for Burn/Tax Token against tBNB. Not Enabling Right Price Panel
I want to add Liquidity Pair for my Own Token against BNB. but the Price or Right Panel is not Enabling. My Token has Tax and Burn Features. I am using PCS V2 Testnet. I also Tested in V3(it didn't ...
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Python 3.11.3 - Web3 6.4.0 - Python reports that contract.functions.swapExactETHForTokens does not have attribute buildTransaction
I have now Python 3.11.3 and Web3 6.4.0 and I cannot use anymore my old code for buying/selling tokens in Pancakeswap because Python reports that contract.functions.swapExactETHForTokens does not have ...
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Understanding the getAmountsOut functrion, help please
I'm trying to understand the "getAmountsOut" function from Uniswap / Pancakeswap, line by line:
// performs chained getAmountOut calculations on any number of pairs
function getAmountsOut(...
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How would I be able to set slippage for exactInputSingle on Uniswap v3 and Pancakeswap v3?
I'm able to do swap transactions using multicall and exactInputSingle functions on both Uniswap v3 and Pancakeswap v3. However, I have no idea how would I be able to set the slippage. The v2 routers ...
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Multi token Arbitrage Bot for Dexes
I was thinking of making a program to find & execute arbitrage.
Say we have a 100 token A which we can swap back & forth with 4 other tokens to end up making a profit by combining it with ...
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Sending transaction to Uniswap/Pancakeswap Router using Nethereum failing
I'm trying to send a transaction to the Uniswap or Pancakeswap V3 router using Nethereum for a token swap via "exactInputSingle", but first I'm performing a gas estimate for the transaction. ...
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Code which copy tradeers in pankakeswap doesnt work
So Im trying to use tihs code to copy traders in pancakeswap. But when the code achive the line (how i think) let decodedData = iface.parseTransaction({ data: txInfo.data }) code doesnt do bet like a ...
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How to provide liquidity to PancakeSwapV3 farming?
I try to provide liquidity to PancakeSwapV3 farming. To do it I call safeTransferFrom method of NonfungiblePositionManager (https://bscscan.com/address/0x46a15b0b27311cedf172ab29e4f4766fbe7f4364). ...
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BSC Wallet hacked. Sweeper in my wallet [duplicate]
new here!
Recently my seeds were compromised/stolen (maybe a suspicious download). I have some blocked tokens linked to my wallet. Whenever I transfer some Token, the sweeper transfers it to the ...
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PancakeSwap Router Contract call: <UnrecognizedContract> Error: call revert exception
I am using ethers.js, hardhat, and pancakeswaps router to run getAmountsOut(), but I am getting an error.
The error I get in the terminal is...
Error: call revert exception [ See: https://links....
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Interact with PancakeRouter contract using Remix return: PancakeRouter: EXPIRED
I am interacting with the PancakeRouter.sol contract on Remix by setting the deadline to the latest block timestamp on Mumbai Polygonscan plus 30 * 60 seconds. But no matter how high the deadline I am ...
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How to know how much token when I call swapExactETHForTokens, without checking in offchain
Hi everyone.
I currently testing with swap in pancakeswap ETH-tusd, I realize even I fixed amountOutMin but with sent different ETH, I receive different amount of token tusd, How do I capture that ...
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What is difference between masterchef and smartchef contracts
I was going through masterchef contract. But later I saw Pancake uses smartchef contract for pools. I am confused which one to use, as both have almost same functionality.
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How to setup routing in pancakeswap
Pancake V2 has this smart order routing(SOR) feature. I was wondering how to build this efficiently, so that I can do permutation and combinations on existing pairs and get their reserves, and thereby ...
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error during making a request to subgraph ql
lientError: GraphQL Error (Code: 500): {"response":{"error":"invalid gRPC request content-type\n","status":500,"headers":{}},"request":{&...
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Token pair liquidity lock expiration
Is there any way to get token pair liquidity lock expiration in Pancakeswap using Solidity? I know how to do this using bscscan.com, but I need to add some condition in my Solidity code to avoid ...
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Swapping token for Eth
since I cannot find a legit site to lookup liquidity for a smart contract this is my only option. Like there isn’t a single site that you go on, paste a smart contract option and it gives you all the ...
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python web3, given only token address, fetch liquidity pool details from pancake swap
Using python 3.10, web3 v5.31.1
Given only the contract address for a single token (tokenA), is there a method from PancakeSwap to return liquidity pool (LP) details?
Mainly given only the address of ...
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Python web3, how to create route bnb -> intermediary -> token dynamically
Using Python 3.10
web3 V 5.31.1
I currently have functional code in python that can buy/sell tokens via PancakeSwapV2 only if they have liquidity pools BNB/token
def buy_token(tkn_addr: str, amount: ...
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RPC readtime out problem
What I want to do: look through all pairs in pancake V2(currently 1261k pairs), and get token0 and token1 address, thus read their source code through bscscan api, to identify whether its source code ...
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Faild to add Liquidity in pancake router
I've forked this pancake router contract in BSC testnet
https://testnet.bscscan.com/address/0x9Ac64Cc6e4415144C455BD8E4837Fea55603e5c3#code
and this is mine:
https://testnet.bscscan.com/address/...
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Query pancake swap staking contract
I've been trying to find information on how to query pancakeswap's staking contract for some time now, and I've unfortunately been unsuccessful this far.
I was wondering if anyone would be so kind as ...
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Call Requests Limit
I made a bot swap on bsc network using 1inch 0x and para swap.. everything is great except one thing which is Call requests I can’t make call every 1 sec for more than 1 token when make 2 tokens my ip ...
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PancakeSwap Error with Brownie, revert: TransferHelper::transferFrom: transferFrom failed
I am in bsc-testnet and have 0.3 WBNB in my wallet and I try to swap 0.1 WBNB for USDT with the function swapExactTokensForTokens()
Token1 = '0xae13d989daC2f0dEbFf460aC112a837C89BAa7cd'
Token2 = '...
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Need help with solidity?
Hello everyone so Im building flashswap arbitrage program and I got stuck and cant figure out why maybe anyone has a solution :
this is the code I have for solidity
// SPDX-License-Identifier: ...
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Swap router addresses list
I'm looking to create a list of available swap routers addresses ( on ethereum and polygone mainet) from differente DEXes .
Can you help ?.
Many thanks.
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Pair Pool contract
Is it possible to use getReserves() to calculate the pair tokens individual liquidity in the pool? if so, how would you calculate it?
Example Contract: https://bscscan.com/address/...
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Ethers.js BigNumber calculation incorrect
I'm trying to replicate the PancakeswapV2 getAmountOut function in Javascript using ethers.BigNumbers as follows (the code in the comment is ad-verbatum from PancakeswapLibrary)
function getTokensOut(...
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