How to add response interceptor to default rest endpoint api/documents

I have a requirement where hippo document text fields have value like Price of the product is [[product price]].When I use hippo default endpoint(/api/documents/{{id}}) to get this document but it is not replacing [[product price]] with value from variables.

I have added response interceptor but it is not working when I call /api/documents/{{id}} , it is working only when call for custom rest endpoint.

Is it possible in hippo add response interceptors on default endpoint.

can some one help me…