# 空投:Coinbase的L2 Base 存款代码交互

By [Hunting_DAO](https://paragraph.com/@hunting-dao) · 2023-03-14

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首先，大家要在以太坊钱包中选择要存入的ETH，，然后复制该货币的地址。

1.  登录到您的 Coinbase 账户，点击“存款”按钮，在以太坊区块链中选择 L2 Base。
    
2.  您会看到一个交互式代码框，包含以下信息：
    

    deposit(address l2Bridge, uint256 amount)
    

3、将您在第1步中复制的货币地址粘贴到交互式代码框中的“l2Bridge”字段中。

4、将您要存入的货币数量输入到交互式代码框中的“amount”字段中。

5、点击“提交”按钮，等待交易完成（通常需要几分钟）。

存款示例, 以下是Python3的代码示例:

    """
    安装依赖
    pip3 install web3
    """
    import web3
    import math
    import requests
    
    headers = {
        'content-type': 'application/json',
        'accept-encoding': 'gzip, deflate, br',
        'user-agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/107.0.0.0 Safari/537.36',
        }
    
    class Rpc:
        """
        eth rpc方法
        """
        def __init__(self, rpc='https://rpc.ankr.com/eth_goerli', chainid=5, proxies=None, timeout=30):
            self.rpc = rpc
            self.chainid = chainid
            self.proxies = proxies
            self.timeout = timeout
    
        def get_transaction(self, txhash):
            """获取的交易详情"""
            data = {"jsonrpc":"2.0","method":"eth_getTransactionByHash","params":[txhash],"id":1}
            res = requests.post(self.rpc, json=data, headers=headers, proxies=self.proxies, timeout=self.timeout)
            return res.json()
    
        def get_gas_price(self):
            """获取gas"""
            data = {"jsonrpc":"2.0","method":"eth_gasPrice","params":[],"id":1}
            res = requests.post(self.rpc, json=data, headers=headers, proxies=self.proxies, timeout=self.timeout)
            return res.json()
    
        def get_balance(self, address):
            """获取余额"""
            data = {"jsonrpc":"2.0","method":"eth_getBalance","params":[address, 'latest'],"id":1}
            res = requests.post(self.rpc, json=data, headers=headers, proxies=self.proxies, timeout=self.timeout)
            return res.json()
    
        def get_transaction_count_by_address(self, address):
            """获取地址nonce"""
            data = {"jsonrpc":"2.0","method":"eth_getTransactionCount","params":[address,'latest'],"id":1}
            res = requests.post(self.rpc, json=data, headers=headers, proxies=self.proxies, timeout=self.timeout)
            return res.json()
    
        def send_raw_transaction(self, hex):
            """广播交易"""
            data = {"jsonrpc":"2.0","method":"eth_sendRawTransaction","params":[hex],"id":1}
            res = requests.post(self.rpc, json=data, headers=headers,  proxies=self.proxies, timeout=self.timeout)
            return res.json()
    
        def transfer(self, account, to, amount, gaslimit, **kw):
            """离线交易
            account
            to: 收款地址
            gaslimit: 由当前区块的gaslimit获取
            gasprice: get_gas_price获取
            nonce: 交易总数 get_transaction_count_by_address获取
            chainId: 链id
            """
            amount = int(amount, 16) if isinstance(amount, str) else int(amount)
            gaslimit = int(gaslimit, 16) if not isinstance(gaslimit, int) else gaslimit
            gasprice = int(self.get_gas_price()['result'], 16)
            nonce = int(self.get_transaction_count_by_address(account.address)['result'], 16)
            tx = {'from': account.address, 'value': amount,'to': to, 'gas': gaslimit, 'gasPrice': gasprice, 'nonce': nonce, 'chainId': self.chainid}
            if kw:
                tx.update(**kw)
            signed = account.signTransaction(tx)
            return self.send_raw_transaction(signed.rawTransaction.hex())
        
    if __name__ == '__main__':
        privkey = 'xxxxxxxx' # 这里替换成自己的私钥
        account = web3.Account.from_key(privkey)
        rpc = Rpc()
        value = 0.01 # 要存款的数量
        gaslimit = 100000 # gaslimit
        base_token = '0xe93c8cd0d409341205a592f8c4ac1a5fe5585cfa' # base存款的合约地址
        method = '0xe9e05c42' # 存款方法hash值
        addr_0 = account.address[2:].rjust(64,'0') # 地址格式处理
        amount = int(value * math.pow(10, 18)) # eth的主币精度是18位
        value = hex(amount) # value hex格式处理
        unit_1 = value[2:].rjust(64,'0')
        unit_2 = hex(int(gaslimit))[2:].rjust(64,'0')
        bool_3 = '0000000000000000000000000000000000000000000000000000000000000000'
        unit_4 = '00000000000000000000000000000000000000000000000000000000000000a0'
        unit_5 = '0000000000000000000000000000000000000000000000000000000000000000'
        data = method + addr_0 + unit_1 + unit_2 + bool_3 + unit_4 + unit_5 # 拼接数据
        res = rpc.transfer(account, to=base_token, amount=amount, gaslimit=gaslimit, data=data) # 发送交易
        print(res) # 打印交易hash
    

6、一旦交易完成，您将在您的 Coinbase 账户中看到您的存款。请注意，存款可能需要一段时间才能在 L2 Base 上确认并显示。

[https://base-goerli.blockscout.com/](https://base-goerli.blockscout.com/)

请注意，L2 Base 可能需要一些时间来处理您的存款，因此请耐心等待。如果您在存款过程中遇到任何问题，请与 Coinbase 支持团队联系。

![](https://storage.googleapis.com/papyrus_images/d7f1c78dd48349fff861ea5d8a47d3e4a1d7ced75828503a8f2f7cb6432085c1.png)

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*Originally published on [Hunting_DAO](https://paragraph.com/@hunting-dao/coinbase-l2-base)*