我正在尝试通过使用python进行事务将我的SimpleStorage.sol合同部署到一个ganache本地链。它似乎很难连接到链条上。
from solcx import compile_standard
from web3 import Web3
import json
import os
from dotenv import load_dotenv
load_dotenv()
with open("./SimpleStorage.sol", "r") as file:
simple_storage_file = file.read()
compiled_sol = compile_standard(
{
"language": "Solidity",
"sources": {"SimpleStorage.sol": {"content": simple_storage_file}},
"settings": {
"outputSelection": {
"*": {"*": ["abi", "metadata", "evm.bytecode", "evm.sourceMap"]}
}
},
},
solc_version="0.6.0",
)
with open("compiled_code.json", "w") as file:
json.dump(compiled_sol, file)
# get bytecode
bytecode = compiled_sol["contracts"]["SimpleStorage.sol"]["SimpleStorage"]["evm"][
"bytecode"
]["object"]
# get ABI
abi = compiled_sol["contracts"]["SimpleStorage.sol"]["SimpleStorage"]["abi"]
# to connect to ganache blockchain
w3 = Web3(Web3.HTTPProvider("HTTP://127.0.0.1:7545"))
chain_id = 5777
my_address = "0xca1EA31e644F13E3E36631382686fD471c62267A"
private_key = os.getenv("PRIVATE_KEY")
# create the contract in python
SimpleStorage = w3.eth.contract(abi=abi, bytecode=bytecode)
# get the latest transaction
nonce = w3.eth.getTransactionCount(my_address)
# 1. Build a transaction
# 2. Sign a transaction
# 3. Send a transaction
transaction = SimpleStorage.constructor().buildTransaction(
{"chainId": chain_id, "from": my_address, "nonce": nonce}
)
print(transaction)
它似乎是连接到ganache链的,因为它打印的是当前,但是当我构建并试图打印事务时,这里是我正在接收的整个回溯呼叫。
Traceback (most recent call last):
File "C:\Users\evens\demos\web3_py_simple_storage\deploy.py", line
52, in <module>
transaction = SimpleStorage.constructor().buildTransaction(
File "C:\Python310\lib\site-packages\eth_utils\decorators.py", line
18, in _wrapper
return self.method(obj, *args, **kwargs)
File "C:\Users\evens\AppData\Roaming\Python\Python310\site-
packages\web3\contract.py", line 684, in buildTransaction
return fill_transaction_defaults(self.web3, built_transaction)
File "cytoolz/functoolz.pyx", line 250, in
cytoolz.functoolz.curry.__call__
return self.func(*args, **kwargs)
File "C:\Users\evens\AppData\Roaming\Python\Python310\site-
packages\web3\_utils\transactions.py", line 114, in
fill_transaction_defaults
default_val = default_getter(web3, transaction)
File "C:\Users\evens\AppData\Roaming\Python\Python310\site-
packages\web3\_utils\transactions.py", line 60, in <lambda>
'gas': lambda web3, tx: web3.eth.estimate_gas(tx),
File "C:\Users\evens\AppData\Roaming\Python\Python310\site-
packages\web3\eth.py", line 820, in estimate_gas
return self._estimate_gas(transaction, block_identifier)
File "C:\Users\evens\AppData\Roaming\Python\Python310\site-
packages\web3\module.py", line 57, in caller
result = w3.manager.request_blocking(method_str,
File "C:\Users\evens\AppData\Roaming\Python\Python310\site-
packages\web3\manager.py", line 197, in request_blocking
response = self._make_request(method, params)
File "C:\Users\evens\AppData\Roaming\Python\Python310\site-
packages\web3\manager.py", line 150, in _make_request
return request_func(method, params)
File "cytoolz/functoolz.pyx", line 250, in
cytoolz.functoolz.curry.__call__
return self.func(*args, **kwargs)
File "C:\Users\evens\AppData\Roaming\Python\Python310\site-
packages\web3\middleware\formatting.py", line 76, in
apply_formatters
response = make_request(method, params)
File "C:\Users\evens\AppData\Roaming\Python\Python310\site-
packages\web3\middleware\gas_price_strategy.py", line 90, in
middleware
return make_request(method, params)
File "cytoolz/functoolz.pyx", line 250, in
cytoolz.functoolz.curry.__call__
return self.func(*args, **kwargs)
File "C:\Users\evens\AppData\Roaming\Python\Python310\site-
packages\web3\middleware\formatting.py", line 74, in
apply_formatters
response = make_request(method, formatted_params)
File "C:\Users\evens\AppData\Roaming\Python\Python310\site-
packages\web3\middleware\attrdict.py", line 33, in middleware
response = make_request(method, params)
File "cytoolz/functoolz.pyx", line 250, in
cytoolz.functoolz.curry.__call__
return self.func(*args, **kwargs)
File "C:\Users\evens\AppData\Roaming\Python\Python310\site-
packages\web3\middleware\formatting.py", line 74, in
apply_formatters
response = make_request(method, formatted_params)
File "cytoolz/functoolz.pyx", line 250, in
cytoolz.functoolz.curry.__call__
return self.func(*args, **kwargs)
File "C:\Users\evens\AppData\Roaming\Python\Python310\site-
packages\web3\middleware\formatting.py", line 73, in
apply_formatters
formatted_params = formatter(params)
File "cytoolz/functoolz.pyx", line 503, in
cytoolz.functoolz.Compose.__call__
ret = PyObject_Call(self.first, args, kwargs)
File "cytoolz/functoolz.pyx", line 250, in
cytoolz.functoolz.curry.__call__
return self.func(*args, **kwargs)
File "C:\Python310\lib\site-packages\eth_utils\decorators.py", line
91, in wrapper
return ReturnType(result) # type: ignore
File "C:\Python310\lib\site-packages\eth_utils\applicators.py", line
22, in apply_formatter_at_index
yield formatter(item)
File "cytoolz/functoolz.pyx", line 250, in
cytoolz.functoolz.curry.__call__
File "cytoolz/functoolz.pyx", line 250, in
cytoolz.functoolz.curry.__call__
return self.func(*args, **kwargs)
File "C:\Python310\lib\site-packages\eth_utils\applicators.py", line
72, in apply_formatter_if
return formatter(value)
File "cytoolz/functoolz.pyx", line 250, in
cytoolz.functoolz.curry.__call__
return self.func(*args, **kwargs)
File "C:\Users\evens\AppData\Roaming\Python\Python310\site-
packages\web3\middleware\validation.py", line 57, in
validate_chain_id
raise ValidationError(
web3.exceptions.ValidationError: The transaction declared chain ID
5777, but the connected node is on 1337
发布于 2022-01-17 18:17:05
如果我自己也有这个问题,显然是某种Ganache CLI错误,但我能找到的最简单的修复方法是通过settings>server将Ganache中的网络id更改为1337。它重新启动会话,因此您需要更改地址和私钥变量。
如果这是我正在做的同一篇教程,你很可能会在这之后脱困.交易代码应该是:
transaction =
SimpleStorage.constructor().buildTransaction( {
"gasPrice": w3.eth.gas_price,
"chainId": chain_id,
"from": my_address,
"nonce": nonce,
})
print(transaction)
否则,如果不设置gasPrice,则会出现值错误。
发布于 2022-01-17 19:14:19
这一行代码错了
chain_id = 5777
加纳奇链id不是5777。这是网络标识。网络id由节点用来在同一网络上的节点之间传输数据。网络id不包含在块中,也不用于对事务或挖掘块进行签名。
chain_id = 1377
链ID也不包含在块中,但它在事务签名和验证过程中使用。
发布于 2022-03-10 16:36:48
它对我有用,我从w3.eth.chain_id那里得到了value w3.eth.chain_id
transaction = SimpleStorage.constructor().buildTransaction(
{
"gasPrice": w3.eth.gas_price,
"chainId": w3.eth.chain_id,
"from": my_address,
"nonce": nonce,
}
)
委托给eth_chainId RPC方法
返回EIP-155中引入的当前配置的“链Id”值的整数值。如果没有可用的链Id,则返回None。
https://stackoverflow.com/questions/70731492
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