Python web3.HTTPProvider方法代碼示例

# 需要導入模塊: import web3 [as 別名]
# 或者: from web3 import HTTPProvider [as 別名]
def __init__(self):
		# Path setting
		self.Fpath = "/tmp"
		self.DbPath = "/tmp/.db"
		# Web3 setting
		self.web3 = Web3(HTTPProvider('http://localhost:8545'))
		# DB setting
		self.conn = sqlite3.connect(self.DbPath+"/FileSign.db")
		self.c = self.conn.cursor()
		self.c.execute("create table if not exists AccountEhash(account text, Ehash text, PRIMARY KEY(account))")
		self.conn.commit()
		self.c.execute("create table if not exists SendLog(account text, Thash text)")
		self.conn.commit()
		self.c.execute("create table if not exists SignFhash(SignHash text, Fhash text, PRIMARY KEY(SignHash))")
		self.conn.commit()
		try:
			self.c.execute("insert into AccountEhash values ('admin','"+str(self.web3.eth.coinbase)+"')")
			self.conn.commit()
		except:
			pass 

# 需要導入模塊: import web3 [as 別名]
# 或者: from web3 import HTTPProvider [as 別名]
def __init__(self,
                     contract_address,
                     contract_abi_string,
                     ethereum_chain_id,
                     http_provider,
                     websocket_provider,
                     gas_price_gwei,
                     gas_limit,):

            self.abi_dict = json.loads(contract_abi_string)
            self.contract_address = utils.checksum_encode(contract_address)
            self.ethereum_chain_id = int(ethereum_chain_id)

            self.w3 = Web3(HTTPProvider(http_provider))
            # self.wsw3 = Web3(WebsocketProvider(websocket_provider))

            self.contract = self.w3.eth.contract(address=self.contract_address, abi=self.abi_dict)
            self.decimals = self.get_decimals()

            self.gas_price = self.w3.toWei(gas_price_gwei, 'gwei')
            self.gas_limit = gas_limit
            self.transaction_max_value = self.gas_price * self.gas_limit 

# 需要導入模塊: import web3 [as 別名]
# 或者: from web3 import HTTPProvider [as 別名]
def __init__(self,
                 http_provider_uri='http://localhost:8545',
                 number_of_blocks: int = 200,
                 cache_timeout_seconds: int = 10 * 60,
                 constant_gas_increment: int = 1):  # Increase a little for fastest mining for API Calls

        self.http_provider_uri = http_provider_uri
        self.http_session = requests.session()
        self.number_of_blocks = number_of_blocks
        self.cache_timeout = cache_timeout_seconds
        self.constant_gas_increment = constant_gas_increment
        self.w3 = Web3(HTTPProvider(http_provider_uri))
        try:
            if self.w3.net.version != 1:
                self.w3.middleware_onion.inject(geth_poa_middleware, layer=0)
            # For tests using dummy connections (like IPC)
        except (ConnectionError, FileNotFoundError):
            self.w3.middleware_onion.inject(geth_poa_middleware, layer=0) 

# 需要導入模塊: import web3 [as 別名]
# 或者: from web3 import HTTPProvider [as 別名]
def find_transaction_details_in_redeem_event(self, recipient_address: str, secret_hash: str, block_number: int):
        # web3.gastracker.io node does not support filtering
        # etc-geth.0xinfra.com not is not stable so it is used only for filtering
        filterable_web3 = Web3(HTTPProvider('https://etc-geth.0xinfra.com/'))

        event_signature_hash = self.web3.sha3(text="RedeemSwap(address,bytes20,bytes32)").hex()
        filter_options = {
            'fromBlock': block_number,
            'address': self.contract_address,
            'topics': [
                event_signature_hash,
                '0x' + encode_single('address', recipient_address).hex(),
                '0x' + encode_single('bytes20', bytes.fromhex(secret_hash)).hex()
            ]
        }

        event_filter = filterable_web3.eth.filter(filter_options)

        for _ in range(ETH_FILTER_MAX_ATTEMPTS):
            events = event_filter.get_all_entries()
            if events:
                return {
                    'secret': events[0]['data'][2:],
                    'transaction_hash': events[0]['transactionHash'].hex()
                } 

# 需要導入模塊: import web3 [as 別名]
# 或者: from web3 import HTTPProvider [as 別名]
def __init__(self, *args, **kwargs):
        """Initializes the `web3` object.

        Args:
            rpc_provider (HTTPProvider): Valid `web3` HTTPProvider instance (optional)
        """
        rpc_provider = kwargs.pop('rpc_provider', None)
        if not rpc_provider:
            timeout = getattr(settings, "ETHEREUM_NODE_TIMEOUT", 10)

            uri = settings.ETHEREUM_NODE_URI
            rpc_provider = HTTPProvider(
                endpoint_uri=uri,
                request_kwargs={
                    "timeout": timeout
                }
            )

        self.web3 = Web3(rpc_provider)

        # If running in a network with PoA consensus, inject the middleware
        if getattr(settings, "ETHEREUM_GETH_POA", False):
            self.web3.middleware_onion.inject(geth_poa_middleware, layer=0)

        super(Web3Service, self).__init__() 

# 需要導入模塊: import web3 [as 別名]
# 或者: from web3 import HTTPProvider [as 別名]
def __init__(self,host='localhost',port=5001,mainnet=False):
		self.last_contract_address = None
		self.last_hash_added = None
		#self.api = ipfsapi.connect(host='127.0.0.1',port=port)
		# self.web3 = Web3(HTTPProvider('http://localhost:8545'))
		if mainnet:
			ipc_path=os.path.dirname(os.path.realpath(__file__))+'/data_mainnet/geth.ipc'
		else:
			ipc_path = os.path.dirname(os.path.realpath(__file__))+'/data/geth.ipc'
		print("IPCProvider path: ",ipc_path)
		self.web3 = Web3(IPCProvider(ipc_path))
		self.blockNumber = self.web3.eth.blockNumber
		self.eth_accounts = self.web3.personal.listAccounts
		self.account_index = 0
		self.ethereum_acc_pass = None
		
		self.tx = {}

		print("Initializing a DDASH Interface object.")

		# log Ethereum accounts to ddash/nfo/
		self.write_ethereum_address(mainnet)

	# contract_name is without the sol extension 

# 需要導入模塊: import web3 [as 別名]
# 或者: from web3 import HTTPProvider [as 別名]
def main(rpc_url: URI, private_key: Path, token_address: ChecksumAddress, amount: int) -> None:
    web3 = Web3(HTTPProvider(rpc_url))
    privkey = get_private_key(private_key)
    assert privkey is not None
    owner = private_key_to_address(privkey)
    web3.middleware_onion.add(construct_sign_and_send_raw_middleware(privkey))
    token_code = web3.eth.getCode(token_address, "latest")
    assert token_code != HexBytes("")
    token_contract = ContractManager(contracts_precompiled_path()).get_contract(
        CONTRACT_CUSTOM_TOKEN
    )
    token_proxy = web3.eth.contract(address=token_address, abi=token_contract["abi"])
    tx_hash = token_proxy.functions.mint(amount).transact({"from": owner})
    print(f"Minting tokens for address {owner}")
    print(f"Transaction hash {encode_hex(tx_hash)}")
    balance = token_proxy.functions.balanceOf(owner).call()
    print(f"Balance of {owner}: {balance}") 

# 需要導入模塊: import web3 [as 別名]
# 或者: from web3 import HTTPProvider [as 別名]
def __init__(self) -> None:
        super().__init__(HTTPProvider("null"))
        self.enable_unstable_package_management_api()
        self.provider = None
        self._mainnet_w3: Optional[_Web3] = None
        self._genesis_hash: Optional[str] = None
        self._chain_uri: Optional[str] = None
        self._custom_middleware: Set = set() 

# 需要導入模塊: import web3 [as 別名]
# 或者: from web3 import HTTPProvider [as 別名]
def _mainnet(self) -> _Web3:
        # a web3 instance connected to the mainnet
        if self.isConnected() and CONFIG.active_network["id"] == "mainnet":
            return self
        try:
            mainnet = CONFIG.networks["mainnet"]
        except KeyError:
            raise MainnetUndefined("No 'mainnet' network defined") from None
        if not self._mainnet_w3:
            uri = _expand_environment_vars(mainnet["host"])
            self._mainnet_w3 = _Web3(HTTPProvider(uri))
            self._mainnet_w3.enable_unstable_package_management_api()
        return self._mainnet_w3 

# 需要導入模塊: import web3 [as 別名]
# 或者: from web3 import HTTPProvider [as 別名]
def AddPeer(message):
	print("AddPeer : "+message)
	from web3 import Web3, HTTPProvider
	web3 = Web3(HTTPProvider('http://localhost:8545'))
	try:
		web3.admin.addPeer(message)
	except:
		print("Add Peer Fail!!!") 

# 需要導入模塊: import web3 [as 別名]
# 或者: from web3 import HTTPProvider [as 別名]
def __init__(self):

        self.web3 = Web3(HTTPProvider(self.web3_provider_address))

        # Method IDs for transaction building. Built on the fly for developer reference (keeping away from magics)
        self.initiate = self.method_id('initiate(uint256,bytes20,address,address,bool,uint256)')
        self.redeem = self.method_id('redeem(bytes32)')
        self.refund = self.method_id('refund(bytes20, address)') 

# 需要導入模塊: import web3 [as 別名]
# 或者: from web3 import HTTPProvider [as 別名]
def get_provider_from_uri(node_uri: str):
        if node_uri.startswith('http'):
            return HTTPProvider(node_uri)
        elif node_uri.startswith('ipc'):
            path = node_uri.replace('ipc://', '')
            return IPCProvider(ipc_path=path)
        elif node_uri.startswith('test'):
            return EthereumTesterProvider(EthereumTester())
        else:
            raise ValueError('%s uri is not supported. Must start by http, ipc, or test' % node_uri) 

# 需要導入模塊: import web3 [as 別名]
# 或者: from web3 import HTTPProvider [as 別名]
def slow_provider(self):
        if isinstance(self.provider, HTTPProvider):
            return HTTPProvider(endpoint_uri=self.provider.endpoint_uri,
                                request_kwargs={'timeout': self.slow_provider_timeout})
        elif isinstance(self.provider, IPCProvider):
            return IPCProvider(ipc_path=self.provider.ipc_path, timeout=self.slow_provider_timeout)
        else:
            return self.provider 

# 需要導入模塊: import web3 [as 別名]
# 或者: from web3 import HTTPProvider [as 別名]
def get_node_uri(self) -> str:
        if isinstance(self.provider, HTTPProvider):
            return self.provider.endpoint_uri 

# 需要導入模塊: import web3 [as 別名]
# 或者: from web3 import HTTPProvider [as 別名]
def has_http_provider(self):
        return isinstance(self.main_provider, HTTPProvider)