how to use code in Karavan ?

[Dang507]

Hi guys, I'm a newbie in Camel-Karavan. I want to ask how to use code in a Karavan route.

Example: I have a route that handles data from endpoint 1. After getting the data, how can I transform the JSON using code?

[mgubaidullin]

1. Use Unmashal step to convert Json to Object
2. Use set body, set variable or Script step with Groovy Expression language to transform
3. Marshal result to Json

[davsclaus]

You can also find a bit of doc at
https://docs.talismanplatform.com/user-guide/developer-workflow/

[Dang507]

I have read it, but it's still not enough to understand Karavan.