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I'm new on qlik integration. I'm trying to implement dynamic data from our app to Qlik for custom visualization, and here the sequence of it:
Sometimes on step #2, the create connection result in " {u'jsonrpc': u'2.0', u'method': u'OnConnected', u'params': {u'qSessionState': u'SESSION_ATTACHED'}}" instead of "SESSION_CREATED". And it result in step #3 with {u'jsonrpc': u'2.0', u'id': 1, u'error': {u'code': 1002, u'parameter': u'b4d8fd05-6280-460b-a1df-b72247a956e9', u'message': u'App already open'}} and failed the subsequent steps and subsequent custom viz generation.
Questions:
Thanks in advance.
This issue has been fixed by closing the websocket every time the sequence exit, success or not.
Winnie and I found in further testing that we were still seeing this when we made two concurrent WebSocket connections to the same Qlik Sense Engine API endpoint. After reviewing "Connecting to the Qlik Engine API" at
we realized that we needed to append the Qlik app ID to the Engine API URLs when making our WebSocket connections to get an isolated Qlik Engine session for each Qlik app.