如何在 jsonschema 的帮助下验证 json？

Question

我想验证我的 json 输入 -- my_json。我预计会出现异常（因为 job1 不是工作。

如何验证这个 json？

import json
from jsonschema import validate

# Describe what kind of json you expect.
schema = {
    "job" : {"type" : "string"},
    "big_list": [
    {
        "id": 1,
        "code": "qqq"
    },
    {
        "id": 2,
        "code": ""
    }
    # many items
    ]
}

# Convert json to python object.
my_json = {'job1': "as", 'big_list': [{'id': 1, 'code': 'qqq'}, {'id': 2, 'code': ''}]}
validate(instance=my_json, schema=schema) # I expected exception, but have no exceptions

Answer 1

您正确地进行了测试，但架构错误。架构应该是这样的。您可以查看 json 架构文档here

import json
from jsonschema import validate

# Describe what kind of json you expect.
schema = {
    "type" : "object",
    "properties" : 
    {
        "job" : {"type" : "string"},
        "big_list" : {"type" : "object"},
     }
}

# Convert json to python object.
my_json = {'job1': "as", 'big_list': [{'id': 1, 'code': 'qqq'}, {'id': 2, 'code': ''}]}
valid_json = {'job1': "as", 'big_list': {'id': 1, 'code': 'qqq'}}
validate(instance=valid_json, schema=schema) # 
print('valid json has passed')
validate(instance=my_json, schema=schema) # this should raise an error