[Python] Tokens not swaped in Uniswap (web3 blockchain)

how are you? I'm trying to do a Swap Input Exact, and I'm generating the hash and spending gas, but the tokens are not being swapped.

This is a hash that was generated, but no tokens were swapped: 0x29972068d98f7c5c1d8ab54c3b1f48cadc0f4000f94ba9dc01b6dc6192593346

This is the function that generated it:

def uniswap_swap_function(web3, contract_router, wallet_address_metamask, wallet_private_key_metamask, swap, slippage=0.5):

print(swap)

quantity_in = float(swap['quantity_in'])
token_address_in = web3.to_checksum_address(swap['token_address_in'])
token_address_out = web3.to_checksum_address(swap['token_address_out'])

decimals_token0 = int(swap['decimals_in']) # Decimais do token de entrada
decimals_token1 = int(swap['decimals_out']) # Decimais do token de saída

# Definir valores da troca com base nos decimais do token de entrada
amount_in_wei = int(float(swap['quantity_in']) * (10 ** decimals_token0))

# Instanciando o contrato do Uniswap V3 Router
uniswap_router = web3.eth.contract(
address=web3.to_checksum_address("0xE592427A0AEce92De3Edee1F18E0157C05861564"),
abi=[
{
"inputs": [
{
"components": [
{"internalType": "address", "name": "tokenIn", "type": "address"},
{"internalType": "address", "name": "tokenOut", "type": "address"},
{"internalType": "uint24", "name": "fee", "type": "uint24"},
{"internalType": "address", "name": "recipient", "type": "address"},
{"internalType": "uint256", "name": "deadline", "type": "uint256"},
{"internalType": "uint256", "name": "amountIn", "type": "uint256"},
{"internalType": "uint256", "name": "amountOutMinimum", "type": "uint256"},
{"internalType": "uint160", "name": "sqrtPriceLimitX96", "type": "uint160"}
],
"internalType": "struct ISwapRouter.ExactInputSingleParams",
"name": "params",
"type": "tuple"
}
],
"name": "exactInputSingle",
"outputs": [
{"internalType": "uint256", "name": "amountOut", "type": "uint256"}
],
"stateMutability": "payable",
"type": "function"
}
]
)

# Definição do pool de taxas da Uniswap V3 (3000 = 0.3%, 500 = 0.05%)
pool_fee = 3000 # Ajuste conforme necessário

# Calculando o valor mínimo esperado com base no slippage
expected_out = float(swap['quantity_out']) * (10 ** decimals_token1)
amount_out_min = int(expected_out * (1 - slippage / 100))

# Definição do deadline (tempo limite para a transação)
deadline = int(time.time()) + 60 # 1 minuto

# Parâmetros do swap no Uniswap V3
params = (
token_address_in,
token_address_out,
pool_fee,
wallet_address_metamask,
deadline,
amount_in_wei,
amount_out_min,
0
)

# Construção da transação
txn = uniswap_router.functions.exactInputSingle(params).build_transaction({
'from': wallet_address_metamask,
'gas': 250000,
'gasPrice': web3.eth.gas_price,
'nonce': web3.eth.get_transaction_count(wallet_address_metamask),
})

# Assinar a transação
signed_txn = web3.eth.account.sign_transaction(txn, wallet_private_key_metamask)

# Enviar a transação
txn_hash = web3.eth.send_raw_transaction(signed_txn.raw_transaction)

# Esperar a transação ser confirmada
txn_receipt = web3.eth.wait_for_transaction_receipt(txn_hash)

print(f'Transação confirmada com hash: {txn_receipt.transactionHash.hex()}')

return txn_receipt.transactionHash.hex()


Does anyone have any insights on what could be wrong? I've been stuck for a while, and all tokens are approved.

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