向 API 请求添加可选参数的 Pythonic 方式

发布于 2025-01-11 21:04:32 字数 1118 浏览 2 评论 0原文

我正在尝试发出一个 API 请求，在其中添加一些可选值，但如果我不添加它们，我不希望它们出现在请求中。

在这种情况下，我希望参数为 'startblock' & 'endblock'

def get_transactions_by_address_(self, address, action='txlist'):
    """

    :param address:
    :param action: [txlist, txlistinternal]

    :return:
    """
    token = self.etherscan_api_key
    return requests.get('https://api.etherscan.io/api'
                        '?module=account'
                        f'&action={action}'
                        f'&address={address}'
                        # '&startblock=0'
                        # '&endblock=92702578'
                        '&page=1'
                        '&offset=1000'
                        '&sort=desc'
                        f'&apikey={token}'
                        )

我正在考虑添加一些条件，例如

request_url = 'https://api.etherscan.io/api...'
if startblock:
    request_url = request_url + f'&startblock={startblock}'
if endblock:
    request_url = request_url + f'&endblock={endblock}'

但我不知道这是否是最Pythonic的方式来做到这一点，我想获得有关如何做到这一点的其他选项

原文

I'am trying to make an API request where I add some optional values but if I don't add them I don't want them to be in the request.

In this case, I would like the parameters to be 'startblock' & 'endblock'

def get_transactions_by_address_(self, address, action='txlist'):
    """

    :param address:
    :param action: [txlist, txlistinternal]

    :return:
    """
    token = self.etherscan_api_key
    return requests.get('https://api.etherscan.io/api'
                        '?module=account'
                        f'&action={action}'
                        f'&address={address}'
                        # '&startblock=0'
                        # '&endblock=92702578'
                        '&page=1'
                        '&offset=1000'
                        '&sort=desc'
                        f'&apikey={token}'
                        )

I was thinking on adding some conditionals like

request_url = 'https://api.etherscan.io/api...'
if startblock:
    request_url = request_url + f'&startblock={startblock}'
if endblock:
    request_url = request_url + f'&endblock={endblock}'

But I don't know if it is the most pythonic way to do it and I would like to get other options on how to do it

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星星的轨迹 2025-01-18 21:04:32

使用 payload 选项而不是自己构建 URL。例如，创建一个包含所有必需选项的 dict，然后根据需要向该字典添加其他参数。 requests.get 将从基本 URL 和 dict 中找到的值构建所需的 URL。

options = {
        'module': 'account',
        'action': action,
        'address': address,
        'apikey': token,
        'sort': sort,
        'page': page,
        'offset': offset
    }
if startblock:
    options['startblock'] = startblock
if endblock:
    options['endblock'] = endblock

return requests.get('https://api.etherscan.io/api', params=options)

Use the payload option instead of constructing the URL yourself. For example, create a dict containing all the required options, then add additional parameters to the dict as necessary. requests.get will build the required URL from the base URL and the values found in your dict.

options = {
        'module': 'account',
        'action': action,
        'address': address,
        'apikey': token,
        'sort': sort,
        'page': page,
        'offset': offset
    }
if startblock:
    options['startblock'] = startblock
if endblock:
    options['endblock'] = endblock

return requests.get('https://api.etherscan.io/api', params=options)

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我最亲爱的 2025-01-18 21:04:32

正确的实现方法是：

def get_transactions_by_address_(self, address,
                                 action='txlist',
                                 sort='desc',
                                 page=1,
                                 offset=1000,
                                 startblock=None,
                                 endblock=None):
    
    token = self.etherscan_api_key
    options = {
        'module': 'account',
        'action': action,
        'address': address,
        'apikey': token,
        'sort': sort,
        'page': page,
        'offset': offset
    }
    if startblock:
        options['startblock'] = startblock
    if endblock:
        options['endblock'] = endblock

    return requests.get('https://api.etherscan.io/api',
                        params=options
                        )

The correct way to implement is:

def get_transactions_by_address_(self, address,
                                 action='txlist',
                                 sort='desc',
                                 page=1,
                                 offset=1000,
                                 startblock=None,
                                 endblock=None):
    
    token = self.etherscan_api_key
    options = {
        'module': 'account',
        'action': action,
        'address': address,
        'apikey': token,
        'sort': sort,
        'page': page,
        'offset': offset
    }
    if startblock:
        options['startblock'] = startblock
    if endblock:
        options['endblock'] = endblock

    return requests.get('https://api.etherscan.io/api',
                        params=options
                        )

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