# Rebar.CreateFreeForm API method not working

**URL:** https://forum.dynamobim.com/t/rebar-createfreeform-api-method-not-working/54326
**Category:** Developers
**Created:** [August 21, 2020, 6:36pm UTC](https://forum.dynamobim.com/t/rebar-createfreeform-api-method-not-working/54326 "2020-08-21T18:36:25Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![laurin.ernstMA6Q3](https://avatars.discourse-cdn.com/v4/letter/l/ecccb3/32.png) [@laurin.ernstMA6Q3](https://forum.dynamobim.com/u/laurin.ernstMA6Q3)
#### Post date: [August 21, 2020, 6:36pm UTC](https://forum.dynamobim.com/t/rebar-createfreeform-api-method-not-working/54326/1 "2020-08-21T18:36:25Z")

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Hi guys,

i am trying to recreate the node Create.FreeFormRebar from the Structural Design package but get the following warning:

 ![image](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/0/5/05f4004edd8c88f723cd66c124dc5dad10fc3246.png)  
How do i get the List of Curves in another list? Or am i using the API method in a wrong way?

API method: [https://www.revitapidocs.com/2019/e412ef5a-baa0-64e3-858e-65f79316850a.htm](https://www.revitapidocs.com/2019/e412ef5a-baa0-64e3-858e-65f79316850a.htm)

Cheers and thanks for the help! 🙂

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<div class="post-metadata">

### Author: ![n.pahumunto](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/n.pahumunto/32/128568_2.png) [@n.pahumunto](https://forum.dynamobim.com/u/n.pahumunto)
#### Post date: [May 23, 2021, 12:41pm UTC](https://forum.dynamobim.com/t/rebar-createfreeform-api-method-not-working/54326/2 "2021-05-23T12:41:45Z")

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I stuck like this.

What is RebarBarType Data input ?