DDL equivalent for JSON data?

[Carles Barrobés]

Hi guys, 

(Disclaimer: this question is not related to DRF, but since it falls within the realm of HTTP APIs I thought you might have some knowledge or insights.)

Do you know of any initiatives regarding defining schemas for JSON APIs, so that they can be used for generic data validation?

(the equivalent of DTD in the XML world?)

Thanks,

Carles

[Max Arnold]

On Mon, May 14, 2012 at 07:21:44AM -0700, Carles Barrobés wrote:
> Do you know of any initiatives regarding defining schemas for JSON APIs, so
> that they can be used for generic data validation?
> (the equivalent of DTD in the XML world?)

There is IETF draft for JSON schema http://tools.ietf.org/html/draft-zyp-json-schema-03
(also see http://json-schema.org) and several python implementations:

https://github.com/zyga/json-schema-validator
https://github.com/sunlightlabs/validictory
http://code.google.com/p/jsonvalidator/
https://github.com/onyxfish/jsonschema

I haven't investigated them yet (some are old/unmaintained and may not conform to the latest draft),
but I think it is a good starting point.

[Carles Barrobés]

Thanks! In the meantime I found this that looks promising, because of its low verbosity: http://orderly-json.org/

Has any of you actually used any of these?