为什么 oneOf 不适用于我在 jsonschema 中的架构？

Question

我的登录有不同的有效负载，其中一个是：

{
   "username": "",
   "pass": ""
}

另一个是：

{
  "username": "",
  "pass": "",
  "facebook": true
}

最后一个：

{
  "username": "",
  "pass": "",
  "google": true
}

我的架构如下：

login_schema = {
    "title": "UserLogin",
    "description": "User login with facebook, google or regular login.",
    "type": "object",
    "properties": {
        "username": {
            "type": "string"
        },
        "pass": {
            "type": "string"
        },
        "facebook": {
            "type": "string"
        },
        "google": {
            "type": "string"
        }
    },
    "oneOf": [
        {
            "required": [
                "username",
                "pass"
            ],
            "additionalProperties": False,
        },
        {
            "required": [
                "username",
                "pass"
                "google"
            ]
        },
        {
            "required": [
                "username",
                "pass",
                "facebook"
            ]
        }
    ],
    "minProperties": 2,
    "additionalProperties": False,
}

它应该给出以下示例的错误：

{
  "username": "",
  "pass": "",
  "google": "",
  "facebook": ""
}

但它成功验证了架构！我在上面的架构中做错了什么？

编辑-1：

pip3 show jsonschema
Name: jsonschema
Version: 3.0.2
Summary: An implementation of JSON Schema validation for Python
Home-page: https://github.com/Julian/jsonschema
Author: Julian Berman
Author-email: Julian@GrayVines.com
License: UNKNOWN
Location: /usr/local/lib/python3.7/site-packages
Requires: setuptools, six, attrs, pyrsistent

编辑-2：

我得到的错误是：

jsonschema.exceptions.ValidationError: {'username': '', 'pass': '', 'google': '12'} is valid under each of {'required': ['username', 'pass', 'google']}, {'required': ['username', 'pass']}

错误的现场演示：https://jsonschema.dev/s/mXg5X

Answer 1

您的解决方案非常接近。您只需要将 /oneOf/0 更改为

{
  "properties": {
    "username": true,
    "pass": true
  },
  "required": ["username", "pass"],
  "additionalProperties": false
}

问题是 additionalProperties 在确定考虑哪些属性时没有考虑 required 关键字 "additional"。它只考虑 properties 和 patternProperties。仅使用 required 时，additionalProperties 将所有属性视为 "additional"，唯一有效值是 {}.

但是，我建议采用不同的方法。 dependencies 关键字在这些情况下很有用。

{
  "type": "object",
  "properties": {
    "username": { "type": "string" },
    "pass": { "type": "string" },
    "facebook": { "type": "boolean" },
    "google": { "type": "boolean" }
  },
  "required": ["username", "pass"],
  "dependencies": {
    "facebook": { "not": { "required": ["google"] } },
    "google": { "not": { "required": ["facebook"] } }
  },
  "additionalProperties": false
}

为什么 oneOf 不适用于我在 jsonschema 中的架构？

Why oneOf does not work on my schema in jsonschema?

jsonschema