【问题标题】:from curl to pycurl - how to make a mutli-part post - works with curl, fails with 422 with pycurl从 curl 到 pycurl - 如何制作多部分帖子 - 使用 curl,使用 pycurl 失败,出现 422
【发布时间】:2018-10-31 20:59:02
【问题描述】:

我有一个可以正常工作的 cURL 帖子:

curl -X POST http://some-server.com/working_endpoint-F "package[distro_version_id]=1" -F "package[package_file]=@/tmp/myfile.bin" 

当我尝试将其转换为 pycurl 时,请求失败并显示 422 Unprocessable Entity,服务器说 package[package_file]“必须是多部分表单数据”

import pycurl
c = pycurl.Curl()
c.setopt(pycurl.VERBOSE, 1)
c.setopt(c.URL, 'http://some-server.com/working_endpoint')
c.setopt(c.POST, 1)
c.setopt(c.HTTPPOST, [('package[package_file]', (c.FORM_FILE, '/tmp/myfile.bin'))])
c.setopt(c.HTTPPOST, [('package[distro_version_id]',  '1')])
c.perform()

实际上,标题看起来只有一个参数进入多部分表单

Content-Length: 165 Content-Type: multipart/form-data; boundary=------------------------dee07c93fad525aa

我做错了什么?

【问题讨论】:

    标签: python curl http-post pycurl


    【解决方案1】:

    想通了。

    而不是像这样单独调用表单数据的 setopt

    c.setopt(c.HTTPPOST, [('package[package_file]', (c.FORM_FILE, '/tmp/myfile.bin'))])
    c.setopt(c.HTTPPOST, [('package[distro_version_id]',  '1')])
    

    它需要放在一个单一的结构中,像这样

    data = [
        ('package[distro_version_id]', '1'),
        ('package[package_file]', (
            c.FORM_FILE, '/tmp/myfile.bin,
            c.FORM_CONTENTTYPE, 'application/octet-stream'
        ))]
    c.setopt(c.HTTPPOST, data)
    

    【讨论】:

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