Using JavaScript for validation?

[di...@heyboyo.com]

Is it possible to use JavaScript in the JSON Schema definition to validate values?

As a made up example, let's say I have integers A, B, and C, and I want to write some JavaScript that needs to look at all three to validate the form. The JavaScript could be something from a one line expression, to a multiline function.

Is this something that' supported within the specification of the schema, or through other methods?

Cheers,

Diego

[Ben Hutton (@Relequestual)]

Nope.

JSON Schema is a language agnostic specification. Although JSON is the medium, JSON IS supported by many languages. It's not in any way limited to javascript.

Plus, generally you're either using the a schema from someone else, or giving it to someone else. Including arbitrary code in such a document sounds like a bad idea to me.

In addition, if you're looking to validate a form, you should validate it client side AND server side. Just be careful! =]

[Henry Andrews]

Agreed, although something that could very easily drive that kind of client-side form validation may be in scope for https://github.com/json-schema-org/json-schema-spec/issues/67

cheers,

-henry

---

From: "Ben Hutton (@Relequestual)" <b...@sanger.ac.uk>
To: JSON Schema <json-...@googlegroups.com>
Cc: di...@heyboyo.com
Sent: Wednesday, March 29, 2017 1:28 AM
Subject: [json-schema] Re: Using JavaScript for validation?

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[Ben Hutton (@Relequestual)]

Sure! But we wouldn't want to include actual javascript as values in the JSON.

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