R中的POST请求：带有xml的upload_file（）中的错误

Question

我正在尝试创建POST请求，但是body参数无法正常工作。

POST_bodyRequest.xml文件

<?xml version="1.0" encoding="UTF-8"?>
 <rs:alarm-request throttlesize="0"
 xmlns:rs="http://www.ca.com/spectrum/restful/schema/request"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://www.ca.com/spectrum/restful/schema/request ../../../xsd/Request.xsd ">
 <rs:requested-attribute id="0x10000"/> 
 <rs:requested-attribute id="0x10001"/> 
 <rs:requested-attribute id="0x10009"/> 
 <rs:requested-attribute id="0x1000a"/> 
 <rs:requested-attribute id="0x1006e"/> 
 <rs:requested-attribute id="0x11ee8"/> 
</rs:alarm-request>

代码，基本上是POST调用

xml <- upload_file("POST_bodyRequest.xml")
r2 <- POST(url, login.password, body = list(xml))
status_code(r2)

首先要注意的是，文件中的内容没有保存在“ xml”文件中：

> xml <- upload_file("POST_bodyRequest.xml")
> xml
Form file: POST_bodyRequest.xml (type: application/xml) 
> str(xml)
List of 2
 $ path: chr "D:\\MPM\\POST_bodyRequest.xml"
 $ type: chr "application/xml"
 - attr(*, "class")= chr "form_file"

因此，POST调用返回错误

> r2 <- POST(url, login.password, body = list(xml))
Error: All components of body must be named
> status_code(r2)
[1] 415

我也尝试过使用xmlParse（）读取xml文件。在这种情况下，代码将按预期恢复，但是在调用POST时出现相同的错误。

> xml <- xmlParse(file = "POST_bodyRequest.xml")
> r2 <- POST(url, autenticacao, body = list(xml))
Erro: All components of body must be named
> xml
<?xml version="1.0" encoding="UTF-8"?>
<rs:alarm-request xmlns:rs="http://www.ca.com/spectrum/restful/schema/request" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" throttlesize="0" xsi:schemaLocation="http://www.ca.com/spectrum/restful/schema/request ../../../xsd/Request.xsd ">
  <rs:requested-attribute id="0x10000"/>
  <rs:requested-attribute id="0x10001"/>
  <rs:requested-attribute id="0x10009"/>
  <rs:requested-attribute id="0x1000a"/>
  <rs:requested-attribute id="0x1006e"/>
  <rs:requested-attribute id="0x11ee8"/>
</rs:alarm-request>

> str(list(xml))
List of 1
 $ :Classes 'XMLInternalDocument', 'XMLAbstractDocument' <externalptr> 
> status_code(r2)
[1] 415

我在R中的GET请求上没有问题。POST请求在SoapUI上正常工作。所以，我在做什么错？

Answer 1

嗯，它确实起作用了。问题不在于与upload_file（）函数或xml文件有关。这是url变量，没有更新为POST版本。非常感谢您的确认，并确认此问题已解决。