JSON Schema for objects without names

Question

I want to write part of a schema that validates a list of objects, where the objects in the list don't have a name:

"some list": [
    {
        "thing 1": "foo",
        "thing 2": 100
    },
    {
        "thing 1": "foo",
        "thing 2": 100
    },
    {
        "thing 1": "foo",
        "thing 2": 100
    },
]

I have a working schema that has the extra key name that I want to get rid of, labelled I WANT TO GET RID OF THIS NAME. I guess you could think of it as not having a property name for that object.

{
    "$schema": "http://json-schema.org/draft-07/schema#",
    "id": "v2",
    "properties": {
        "some list": {
            "type": "array",
            "items": {
                "type": "object",
                "properties": {
                    "I WANT TO GET RID OF THIS NAME": {
                        "type": "object",
                        "properties": {
                            "thing 1": {
                                "type": "string",
                                "description": "a string"
                            },
                            "thing 2": {
                                "type": "integer",
                                "minimum": 0,
                                "description": "Default time to expose a single image layer for."
                            }
                        },
                        "additionalProperties": false
                    },
                    "additionalProperties": false
                }
            }
        }
    }
}

I can't just git rid of the name because the schema spec expects it, but I also can't figure out how to tell it those objects don't have a name. I am running this example with Python 3.7 using jsonschema Draft7Validator

Benjamin Loison · Accepted Answer · 2025-02-16 18:52:07Z

2

You are correct to get rid of that property - it is referring to the wrong level of nesting. The schema should look like:

{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "id": "v2",
  "properties": {
    "some list": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "thing 1": {
            "type": "string",
            "description": "a string"
          },
          "thing 2": {
            "type": "integer",
            "minimum": 0,
            "description": "Default time to expose a single image layer for."
          }
        },
        "additionalProperties": false
      }
    }
  }
}

edited Feb 16 at 18:52

Benjamin Loison

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answered Jul 11, 2020 at 3:49

Ethan

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1 Comment

Salvatore Over a year ago

I realized I actually removed the wrong name when looking at this. I really wanted to get rid of the names for "thing 1" and "thing 2". I'll post a new question with it, if you know how to fix it, go take a look

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