JSON Schema for object with keys of random numbers

Question

I have an object that has keys being numbers and its values strings:

{
  0: 'blah',
  2: 'blah'
}

What this object is, each key is the index of an array that contained an error, and the string describes that error. The closest I can figure out for this schema is:

{
  "$schema": "http://json-schema.org/draft-04/schema#",
  "type": "object",
  "properties": {
    "0": {
      "type": "string"
    },
    "2": {
      "type": "string"
    }
  },
  "required": [
    "0",
    "2"
  ]
}

However this is inacurate. Maybe next time only index "4" would have an error. Is there a way to describe dyanmic keys in in object?

Your source data is not JSON, so you cannot create a JSON schema for it. JSON requires the keys of the javascript dictionaries to be quoted strings; numbers are not valid. (There are many "lax" json readers, in the spirit of Postel's law - "be liberal in what you accept, be strict in what you generate", that can read your data, but it's not valid JSON) — Erwin Bolwidt, Feb 07 '19 at 21:38
https://stackoverflow.com/questions/8758715/using-number-as-index-json — tom redfern, Feb 08 '19 at 10:23

score 8 · Accepted Answer · answered Feb 07 '19 at 18:01

8

You should try patternProperties. It allows you to define a schema for all properties whose names match a given regex.

{
  "patternProperties": {
    "^[0-9]+$": {"type": "string"}
  }
}

answered Feb 07 '19 at 18:01

gregsdennis

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Oh thank you this looks like the answer! Ill try this out! – Noitidart Feb 08 '19 at 13:11

JSON Schema for object with keys of random numbers

1 Answers1