# Flowable transforming JSON/Serializable variables

**URL:** https://forum.flowable.org/t/flowable-transforming-json-serializable-variables/6201
**Category:** Flowable Engine
**Created:** [June 11, 2020, 11:23pm UTC](https://forum.flowable.org/t/flowable-transforming-json-serializable-variables/6201 "2020-06-11T23:23:32Z")
**Posts on this page:** 1
**Showing post:** 6

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### Author: ![joram](https://yyz1.discourse-cdn.com/flex035/user_avatar/forum.flowable.org/joram/32/26_2.png) [@joram](https://forum.flowable.org/u/joram)
#### Post date: [June 28, 2020, 9:15am UTC](https://forum.flowable.org/t/flowable-transforming-json-serializable-variables/6201/6 "2020-06-28T09:15:52Z")

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> [@Varriount](#):
>
> despite the documentation not stating it as a supported type

Can you point to the documentation where we state it’s not supported, then we can fix it?

> [@Catalyst344](#):
>
> I haven’t attempted to use “JSON” because I didn’t know it was an option. I assumed all JSON gets treated as serializable.

If you use JsonNode/ObjectNode (on the Java level), it will be stored properly (which is what REST seems to use). All current possible types are here: [flowable-engine/modules/flowable-variable-service/src/main/java/org/flowable/variable/service/impl/types at main · flowable/flowable-engine · GitHub](https://github.com/flowable/flowable-engine/tree/master/modules/flowable-variable-service/src/main/java/org/flowable/variable/service/impl/types) (including JsonType).

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