diff --git a/http/doc_index.go b/http/doc_index.go
index d51a0bc31..c81be04d5 100644
--- a/http/doc_index.go
+++ b/http/doc_index.go
@@ -25,6 +25,7 @@ type DocIndexHandler struct {
 	defaultIndexName string
 	IndexNameLookup  varLookupFunc
 	DocIDLookup      varLookupFunc
+	IndexDocType     map[string]interface{}
 }
 
 func NewDocIndexHandler(defaultIndexName string) *DocIndexHandler {
@@ -68,6 +69,12 @@ func (h *DocIndexHandler) ServeHTTP(w http.ResponseWriter, req *http.Request) {
 
 	// parse request body as json
 	var doc interface{}
+	if nil != h.IndexDocType {
+		if v, ok := h.IndexDocType[indexName]; ok {
+			doc = v
+		}
+	}
+
 	err = json.Unmarshal(requestBody, &doc)
 	if err != nil {
 		showError(w, req, fmt.Sprintf("error parsing request body as JSON: %v", err), 400)