Custom GPT sends random parameters to POST endpoint

GPT builders Plugins / Actions builders
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1

I’ve documented a POST endpoint in my schema that requires a download link to be passed in as a parameter. I need chatGPT to generate this download link and send it over with the POST request. However, it frequently sends an empty parameters section or incorrect parameters like file_Id instead of download_link.

I’ve tried updating the description and context, using the openaiFileIDRefs array, and marking the parameters as required.

Has anyone else encountered this, and how did you ensure the GPT consistently called the endpoint with the correct parameters?

2

Have you tried validate the request at your endpoint backend? and return error detail when parameter is wrong?

3

This is help for GPT to correct request

4

Having similar issue with file uploads (both generate by AI and user uploads). It was working fine until now.

Please let me know if u have found any solution.