QML EnginioClient fullTextSearch not working

I created a query in QML as follows:
var query = {
"objectTypes": ["objects.product"],
"search":

{ "phrase": text + "*" }

}
var reply = client.fullTextSearch(query)

Enginio returns reply with error:

{ "reason": "InvalidParameter", "message": "objectTypes parameter is required" }

C++ fullTextSearch works fine.

It seems that query function (enginioclient_p.h) handles javascript array incorrect.