I have a problem when I want to retrieve a token value per BUSD or another token. It may work when I put a >1BUSD token but when I try with a <1BUSD token (like DOGECOIN for example) the amount out is not good, I tried many "toWei" "fromWei" or "10 ** decimals" modifications, but nothing return me a good result. I don't know where my problem is
web3 = Web3(Web3.HTTPProvider('https://bsc-dataseed.binance.org:443'))
#0xbA2aE424d960c26247Dd6c32edC70B295c744C43 (DOGE)
def get_token_swap_price(token):
pancakeSwap_router = web3.eth.contract(address=pancakeSwap_contract_ROUTERV2, abi=pcs_swap_abi)
amountIn = web3.toWei(1,"ether")#######?????
amountOut = None
amountOut = pancakeSwap_router.functions.getAmountsOut(amountIn, [token, BUSD]).call() #######?????
amountOut = web3.fromwei(amountOut[1],"ether") #######?????
print(amountOut)
abi i used for:
[
{
"inputs": [
{
"internalType": "address",
"name": "_factory",
"type": "address"
},
{
"internalType": "address",
"name": "_WETH",
"type": "address"
}
],
"stateMutability": "nonpayable",
"type": "constructor"
},
{
"inputs": [],
"name": "WETH",
"outputs": [
{
"internalType": "address",
"name": "",
"type": "address"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [
{
"internalType": "address",
"name": "tokenA",
"type": "address"
},
{
"internalType": "address",
"name": "tokenB",
"type": "address"
},
{
"internalType": "uint256",
"name": "amountADesired",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "amountBDesired",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "amountAMin",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "amountBMin",
"type": "uint256"
},
{
"internalType": "address",
"name": "to",
"type": "address"
},
{
"internalType": "uint256",
"name": "deadline",
"type": "uint256"
}
],
"name": "addLiquidity",
"outputs": [
{
"internalType": "uint256",
"name": "amountA",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "amountB",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "liquidity",
"type": "uint256"
}
],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [
{
"internalType": "address",
"name": "token",
"type": "address"
},
{
"internalType": "uint256",
"name": "amountTokenDesired",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "amountTokenMin",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "amountETHMin",
"type": "uint256"
},
{
"internalType": "address",
"name": "to",
"type": "address"
},
{
"internalType": "uint256",
"name": "deadline",
"type": "uint256"
}
],
"name": "addLiquidityETH",
"outputs": [
{
"internalType": "uint256",
"name": "amountToken",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "amountETH",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "liquidity",
"type": "uint256"
}
],
"stateMutability": "payable",
"type": "function"
},
{
"inputs": [],
"name": "factory",
"outputs": [
{
"internalType": "address",
"name": "",
"type": "address"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [
{
"internalType": "uint256",
"name": "amountOut",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "reserveIn",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "reserveOut",
"type": "uint256"
}
],
"name": "getAmountIn",
"outputs": [
{
"internalType": "uint256",
"name": "amountIn",
"type": "uint256"
}
],
"stateMutability": "pure",
"type": "function"
},
{
"inputs": [
{
"internalType": "uint256",
"name": "amountIn",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "reserveIn",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "reserveOut",
"type": "uint256"
}
],
"name": "getAmountOut",
"outputs": [
{
"internalType": "uint256",
"name": "amountOut",
"type": "uint256"
}
],
"stateMutability": "pure",
"type": "function"
},
{
"inputs": [
{
"internalType": "uint256",
"name": "amountOut",
"type": "uint256"
},
{
"internalType": "address[]",
"name": "path",
"type": "address[]"
}
],
"name": "getAmountsIn",
"outputs": [
{
"internalType": "uint256[]",
"name": "amounts",
"type": "uint256[]"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [
{
"internalType": "uint256",
"name": "amountIn",
"type": "uint256"
},
{
"internalType": "address[]",
"name": "path",
"type": "address[]"
}
],
"name": "getAmountsOut",
"outputs": [
{
"internalType": "uint256[]",
"name": "amounts",
"type": "uint256[]"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [
{
"internalType": "uint256",
"name": "amountA",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "reserveA",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "reserveB",
"type": "uint256"
}
],
"name": "quote",
"outputs": [
{
"internalType": "uint256",
"name": "amountB",
"type": "uint256"
}
],
"stateMutability": "pure",
"type": "function"
},
{
"inputs": [
{
"internalType": "address",
"name": "tokenA",
"type": "address"
},
{
"internalType": "address",
"name": "tokenB",
"type": "address"
},
{
"internalType": "uint256",
"name": "liquidity",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "amountAMin",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "amountBMin",
"type": "uint256"
},
{
"internalType": "address",
"name": "to",
"type": "address"
},
{
"internalType": "uint256",
"name": "deadline",
"type": "uint256"
}
],
"name": "removeLiquidity",
"outputs": [
{
"internalType": "uint256",
"name": "amountA",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "amountB",
"type": "uint256"
}
],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [
{
"internalType": "address",
"name": "token",
"type": "address"
},
{
"internalType": "uint256",
"name": "liquidity",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "amountTokenMin",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "amountETHMin",
"type": "uint256"
},
{
"internalType": "address",
"name": "to",
"type": "address"
},
{
"internalType": "uint256",
"name": "deadline",
"type": "uint256"
}
],
"name": "removeLiquidityETH",
"outputs": [
{
"internalType": "uint256",
"name": "amountToken",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "amountETH",
"type": "uint256"
}
],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [
{
"internalType": "address",
"name": "token",
"type": "address"
},
{
"internalType": "uint256",
"name": "liquidity",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "amountTokenMin",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "amountETHMin",
"type": "uint256"
},
{
"internalType": "address",
"name": "to",
"type": "address"
},
{
"internalType": "uint256",
"name": "deadline",
"type": "uint256"
}
],
"name": "removeLiquidityETHSupportingFeeOnTransferTokens",
"outputs": [
{
"internalType": "uint256",
"name": "amountETH",
"type": "uint256"
}
],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [
{
"internalType": "address",
"name": "token",
"type": "address"
},
{
"internalType": "uint256",
"name": "liquidity",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "amountTokenMin",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "amountETHMin",
"type": "uint256"
},
{
"internalType": "address",
"name": "to",
"type": "address"
},
{
"internalType": "uint256",
"name": "deadline",
"type": "uint256"
},
{
"internalType": "bool",
"name": "approveMax",
"type": "bool"
},
{
"internalType": "uint8",
"name": "v",
"type": "uint8"
},
{
"internalType": "bytes32",
"name": "r",
"type": "bytes32"
},
{
"internalType": "bytes32",
"name": "s",
"type": "bytes32"
}
],
"name": "removeLiquidityETHWithPermit",
"outputs": [
{
"internalType": "uint256",
"name": "amountToken",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "amountETH",
"type": "uint256"
}
],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [
{
"internalType": "address",
"name": "token",
"type": "address"
},
{
"internalType": "uint256",
"name": "liquidity",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "amountTokenMin",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "amountETHMin",
"type": "uint256"
},
{
"internalType": "address",
"name": "to",
"type": "address"
},
{
"internalType": "uint256",
"name": "deadline",
"type": "uint256"
},
{
"internalType": "bool",
"name": "approveMax",
"type": "bool"
},
{
"internalType": "uint8",
"name": "v",
"type": "uint8"
},
{
"internalType": "bytes32",
"name": "r",
"type": "bytes32"
},
{
"internalType": "bytes32",
"name": "s",
"type": "bytes32"
}
],
"name": "removeLiquidityETHWithPermitSupportingFeeOnTransferTokens",
"outputs": [
{
"internalType": "uint256",
"name": "amountETH",
"type": "uint256"
}
],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [
{
"internalType": "address",
"name": "tokenA",
"type": "address"
},
{
"internalType": "address",
"name": "tokenB",
"type": "address"
},
{
"internalType": "uint256",
"name": "liquidity",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "amountAMin",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "amountBMin",
"type": "uint256"
},
{
"internalType": "address",
"name": "to",
"type": "address"
},
{
"internalType": "uint256",
"name": "deadline",
"type": "uint256"
},
{
"internalType": "bool",
"name": "approveMax",
"type": "bool"
},
{
"internalType": "uint8",
"name": "v",
"type": "uint8"
},
{
"internalType": "bytes32",
"name": "r",
"type": "bytes32"
},
{
"internalType": "bytes32",
"name": "s",
"type": "bytes32"
}
],
"name": "removeLiquidityWithPermit",
"outputs": [
{
"internalType": "uint256",
"name": "amountA",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "amountB",
"type": "uint256"
}
],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [
{
"internalType": "uint256",
"name": "amountOut",
"type": "uint256"
},
{
"internalType": "address[]",
"name": "path",
"type": "address[]"
},
{
"internalType": "address",
"name": "to",
"type": "address"
},
{
"internalType": "uint256",
"name": "deadline",
"type": "uint256"
}
],
"name": "swapETHForExactTokens",
"outputs": [
{
"internalType": "uint256[]",
"name": "amounts",
"type": "uint256[]"
}
],
"stateMutability": "payable",
"type": "function"
},
{
"inputs": [
{
"internalType": "uint256",
"name": "amountOutMin",
"type": "uint256"
},
{
"internalType": "address[]",
"name": "path",
"type": "address[]"
},
{
"internalType": "address",
"name": "to",
"type": "address"
},
{
"internalType": "uint256",
"name": "deadline",
"type": "uint256"
}
],
"name": "swapExactETHForTokens",
"outputs": [
{
"internalType": "uint256[]",
"name": "amounts",
"type": "uint256[]"
}
],
"stateMutability": "payable",
"type": "function"
},
{
"inputs": [
{
"internalType": "uint256",
"name": "amountOutMin",
"type": "uint256"
},
{
"internalType": "address[]",
"name": "path",
"type": "address[]"
},
{
"internalType": "address",
"name": "to",
"type": "address"
},
{
"internalType": "uint256",
"name": "deadline",
"type": "uint256"
}
],
"name": "swapExactETHForTokensSupportingFeeOnTransferTokens",
"outputs": [],
"stateMutability": "payable",
"type": "function"
},
{
"inputs": [
{
"internalType": "uint256",
"name": "amountIn",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "amountOutMin",
"type": "uint256"
},
{
"internalType": "address[]",
"name": "path",
"type": "address[]"
},
{
"internalType": "address",
"name": "to",
"type": "address"
},
{
"internalType": "uint256",
"name": "deadline",
"type": "uint256"
}
],
"name": "swapExactTokensForETH",
"outputs": [
{
"internalType": "uint256[]",
"name": "amounts",
"type": "uint256[]"
}
],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [
{
"internalType": "uint256",
"name": "amountIn",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "amountOutMin",
"type": "uint256"
},
{
"internalType": "address[]",
"name": "path",
"type": "address[]"
},
{
"internalType": "address",
"name": "to",
"type": "address"
},
{
"internalType": "uint256",
"name": "deadline",
"type": "uint256"
}
],
"name": "swapExactTokensForETHSupportingFeeOnTransferTokens",
"outputs": [],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [
{
"internalType": "uint256",
"name": "amountIn",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "amountOutMin",
"type": "uint256"
},
{
"internalType": "address[]",
"name": "path",
"type": "address[]"
},
{
"internalType": "address",
"name": "to",
"type": "address"
},
{
"internalType": "uint256",
"name": "deadline",
"type": "uint256"
}
],
"name": "swapExactTokensForTokens",
"outputs": [
{
"internalType": "uint256[]",
"name": "amounts",
"type": "uint256[]"
}
],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [
{
"internalType": "uint256",
"name": "amountIn",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "amountOutMin",
"type": "uint256"
},
{
"internalType": "address[]",
"name": "path",
"type": "address[]"
},
{
"internalType": "address",
"name": "to",
"type": "address"
},
{
"internalType": "uint256",
"name": "deadline",
"type": "uint256"
}
],
"name": "swapExactTokensForTokensSupportingFeeOnTransferTokens",
"outputs": [],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [
{
"internalType": "uint256",
"name": "amountOut",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "amountInMax",
"type": "uint256"
},
{
"internalType": "address[]",
"name": "path",
"type": "address[]"
},
{
"internalType": "address",
"name": "to",
"type": "address"
},
{
"internalType": "uint256",
"name": "deadline",
"type": "uint256"
}
],
"name": "swapTokensForExactETH",
"outputs": [
{
"internalType": "uint256[]",
"name": "amounts",
"type": "uint256[]"
}
],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [
{
"internalType": "uint256",
"name": "amountOut",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "amountInMax",
"type": "uint256"
},
{
"internalType": "address[]",
"name": "path",
"type": "address[]"
},
{
"internalType": "address",
"name": "to",
"type": "address"
},
{
"internalType": "uint256",
"name": "deadline",
"type": "uint256"
}
],
"name": "swapTokensForExactTokens",
"outputs": [
{
"internalType": "uint256[]",
"name": "amounts",
"type": "uint256[]"
}
],
"stateMutability": "nonpayable",
"type": "function"
},
{
"stateMutability": "payable",
"type": "receive"
}
]
For information, i succesfully get the price with reserves, but i really want to succeed with swap function.