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 Accessing Content Engine GenAI API's using GraphQL

John Bourdeau's profile image
John Bourdeau posted Mon June 30, 2025 04:49 PM

I'm trying to use GraphQL to query content engine's GenAPI's.  I'm using the example found at Content Engine GraphQL API sample mutations and queries.

When I run the query I'm getting an error:

[6/30/25 16:36:42:592 EDT] 000000b6 ContentServic E   Exception while fetching data (/createCmAbstractPersistable) : com.filenet.apiimpl.core.DocumentImpl incompatible with com.filenet.apiimpl.core.CmAbstractPersistableImpl
                                 java.lang.ClassCastException: com.filenet.apiimpl.core.DocumentImpl incompatible with com.filenet.apiimpl.core.CmAbstractPersistableImpl

Ayone understand the error?

Does anyone have an example query for GenAI (Content Assistant)?

JANE Luo's profile image
JANE Luo posted Tue July 01, 2025 11:30 AM

Are you creating a base query? vector query? document query? Could you past your creation of query?

DAVID Hanson's profile image
DAVID Hanson posted Wed July 02, 2025 12:01 AM

The error suggests the className variable being passed to the graphql mutation, as in the example mutations and queries, is a Document class rather than a CmAbstractPersistable sub-class. The className should be a class as in the examples such as "className": "GenAIBaseQuery". What className are you using?

John Bourdeau's profile image
John Bourdeau posted Wed July 02, 2025 01:39 PM

thank you Jane and David for the response and help.  Yes, the error was on my end passing the classname.  I was not passing one of the GenAI classes. 

Is there anyway to control the FileNet class that is being acted upon? The exmple would be to perform a vector query but I want to define the filenet class.  Currently I find all of the documents in the class then pass them to the multidocument query.  I want to skip the first step.

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