Python 打印http请求信息

太过爱你忘了你带给我的痛 2023-02-27 12:23 42阅读 0赞

# 问题 #

我们在开发过程中，为了快速验证接口，经常采用postman或者Python代码先行验证的方式，确保接口正常，在测试接口过程中偶尔会遇到接口异常，这时候要和打印完整的http请求，帮助接口开发人员确认问题；

# 方法 #

仅仅是打印出这些信息，很简单：

import requests
    response = requests.post('http://httpbin.org/post', data={ 'key1':'value1'})
    print(response.request.headers)
    print(response.request.body)

或者：

import requests
    
    def pretty_print_POST(req):
        print('{}\n{}\r\n{}\r\n\r\n{}'.format(
            '-----------START-----------',
            req.method + ' ' + req.url,
            '\r\n'.join('{}: {}'.format(k, v) for k, v in req.headers.items()),
            req.body,
        ))
    
    req = requests.Request('POST','http://stackoverflow.com',headers={ 'X-Custom':'Test'},data='a=1&b=2')
    prepared = req.prepare()
    pretty_print_POST(prepared)
    
    s = requests.Session()
    resp = s.send(prepared)
    print(resp.text)

但如果你想要在进行请求之前对http头和数据进行操作，也是使用prepare：

from requests import Request, Session
    
    s = Session()
    
    req = Request('POST', url, data=data, headers=headers)
    prepped = req.prepare()
    
    # do something with prepped.body
    prepped.body = 'No, I want exactly this as the body.'
    
    # do something with prepped.headers
    del prepped.headers['Content-Type']
    
    resp = s.send(prepped,
        stream=stream,
        verify=verify,
        proxies=proxies,
        cert=cert,
        timeout=timeout
    )
    
    print(resp.status_code)

python 的库的用法去对应的库的帮助文档里去找，更为方便些；

1.  [Python requests - print entire http request (raw)?][Python requests - print entire http request _raw]
2.  [Request and Response Objects][]

[Python requests - print entire http request _raw]: https://stackoverflow.com/questions/20658572/python-requests-print-entire-http-request-raw
[Request and Response Objects]: https://2.python-requests.org/en/master/user/advanced/#request-and-response-objects