Not sure if this is the right approach but I thought it might be of use to 
someone. Just need to startup the relex server first

(use-modules (web server) (web request) (web response) (web uri) (opencog) 
(opencog nlp) (opencog nlp chatbot) (opencog nlp relex2logic) (ice-9 
pretty-print) (ice-9 iconv))

(define (process-chat user body) 

    (define result (process-query "user1" (bytevector->string body 
"iso-8859-1") ))
    (pretty-print result)
    (if (unspecified? result)
        (set! result "unspecified")
    )
    (if (null? result)
        (set! result "null")
    )
    (if (list? result)
        (set! result (car result))
    )

    (string-append "{result:" result "}")
)

(define (my-handler request body)
  (trace-msg "--------------- request -------------------\n")
  (pretty-print  (bytevector->string body "iso-8859-1") )
  (display (request-content-type request))
    (values '((content-type . (application/json)))
        (process-chat "user1" body)
    )
)

(run-server my-handler 'http '(#:port 8093))

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