# Webhook Json Error

**URL:** <https://discuss.roboflow.com/t/webhook-json-error/7534>\
**Category:** 🤝  Community Help\
**Created:** [November 4, 2024, 3:20pm UTC](https://discuss.roboflow.com/t/webhook-json-error/7534 "2024-11-04T15:20:13Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Moon](https://yyz1.discourse-cdn.com/flex029/user_avatar/discuss.roboflow.com/moon/32/5816_2.png) [@Moon](https://discuss.roboflow.com/u/Moon)\
**Post date:** [November 4, 2024, 3:20pm UTC](https://discuss.roboflow.com/t/webhook-json-error/7534/1 "2024-11-04T15:20:13Z")

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I am currently trying to send Json Data using the Webhook in Roboflow Workflow. I am using the Chessbot V2/1 Object detection model. Sadly it doesn’t give me the ability to “link” the prediction data only the inference\_id. Using the json payload I tried to manually get the data from the object detection. Sadly it gives me this error:  
{  
“error”: “Executing extract\_detections\_property(…) in context [1], expected sv.Detections object as value, got [5] of type \<class ‘list’\>”,  
“inner\_error”: “None”  
}  
I get the same error when using Multi Part Encoded Files or Form Data  
Any ideas how I can get the json data into the webhook block (any method works for me)

 ![image](https://canada1.discourse-cdn.com/flex029/uploads/roboflow1/original/2X/f/fe89f23af397441d7cbd239669b7769997040e22.png)

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<div class="post-metadata">

**Author:** ![system](https://canada1.discourse-cdn.com/flex029/uploads/roboflow1/original/1X/bb6edbfa56d0cf2ee603f061e9e09103502cc8cc.png) [@system](https://discuss.roboflow.com/u/system)\
**Post date:** [November 25, 2024, 3:20pm UTC](https://discuss.roboflow.com/t/webhook-json-error/7534/2 "2024-11-25T15:20:17Z")

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