如果未定义数组或对象，JSON 补丁应该失败吗？

Question

给定 JSON 对象

{
  "property": "value"
}

如果像下面这样对该对象执行JSON补丁

[{
  "op": "add",
  "path": "/otherProperty/property", 
  "value": "childvalue"
}]

JSON 补丁操作应该因为 otherProperty 未定义而失败，还是应该添加整个路径？

我在这里找不到任何信息。

Answer 1

如评论中所述，JSON 补丁 Internet 草稿声明该操作应导致错误：

   However, the object itself or an array containing it does need to
   exist, and it remains an error for that not to be the case.  For
   example, an "add" with a target location of "/a/b" starting with this
   document:

   { "a": { "foo": 1 } }

   is not an error, because "a" exists, and "b" will be added to its
   value.  It is an error in this document:

   { "q": { "bar": 2 } }

   because "a" does not exist.

也就是说您仍然可以做您想做的事，但是您必须通过添加一个包含您想要的属性的对象来更改语法。所以根据那个草案的 Appendix 10 你可以做

[{
  "op": "add",
  "path": "/otherProperty", 
  "value": { "property" : "childvalue" }
}]

在这种情况下，您将在根级别创建一个字段，该字段的正文是 json 对象：

{
  "property": "value",
  "otherProperty" : {
    "property" : "childvalue"
  }
}

我通过在目标资源的 JSON 之前和之后粘贴来测试这个 here，它生成了与我上面介绍的相同的添加语句。

如果未定义数组或对象，JSON 补丁应该失败吗？

Should JSON patch fail when an array or object isn't defined?

rest

json-patch