def buy(id):
contract = Contract.get_by_id(id) #instancio contrato
user = User.get_by_id(current_user.id) #instancio comprador
if (contract.owner_id == current_user.id):
flash('Usted es el dueño de este contrato')
return render_template('newContract.html')
walletV = Wallet.get_by_idownerunico(contract.owner_id)
acctV = w3.eth.account.privateKeyToAccount(walletV.key) #direccion vendedor
walletC = Wallet.get_by_idownerunico(current_user.id)
acctC = w3.eth.account.privateKeyToAccount(walletC.key) #direccion comprador
signed_txn = w3.eth.account.signTransaction(dict(
nonce=w3.eth.getTransactionCount(str(acctC.address)),
gasPrice=w3.eth.gasPrice,
gas=100000,
to=str(acctV.address),
value=int(contract.price),
data=b'',
),
str(walletC.key),
)
tx_hash = w3.eth.sendRawTransaction(signed_txn.rawTransaction)
tx_receipt = w3.eth.waitForTransactionReceipt(tx_hash)
hash = w3.toHex(tx_receipt['transactionHash'])
Contract.update_idowner(contract, current_user.id)
Contract.onSale_False(contract)
#contract_instance = w3.eth.contract(address= contract.address, abi = abi)
#tx_hash2 = contract_instance.functions.setOwner(acctC.address).transact()
#tx_receipt2 = w3.eth.waitForTransactionReceipt(tx_hash2)
#hash2 = w3.toHex(tx_receipt2['transactionHash'])
flash('Contract adquired')
return render_template('newContract.html', hash=hash) #hash2 = hash2
