How can I use Storyline 360 variables in custom xAPI statements as Number (not as String)

Hi,

Perhaps somebody knows this and I miss something obvious :-)

I have a few Storyline360 Number variables.

I am modifying the variable with a Web Object (a little game). 

In the end, storyline is sending a custom xAPI statement to set the score in the LRS. 

But to fill the 'score' in the 'result' node in the xAPI JSON, with 'min', 'max', 'raw' and 'scaled' these values need to be numbers, not strings.

I created a game that sets Storyline Number variables:

• Window.GetPlayer().SetVar(“gameScoreMin”, 0)
• Window.GetPlayer().SetVar(“gameScoreMax”, 1600)
• Window.GetPlayer().SetVar(“gameScoreRaw”, 800)
• Window.GetPlayer().SetVar(“gameScoreScaled”, 0.5)

In storyline I want to send an xAPI statement with a “result” node containing score information:

“result":{
                "score":{
                        "min":0
                        "max":1600
                        "scaled":0.5
                        "raw":800
                },
}

But Storyline does not allow (note: no quotes around the vars):

“result":{
                "score":{
                        "min": %gameScoreMin%,
                        "max": %gameScoreMax%,
                        "scaled": %gameScoreScaled%,
                        "raw": %gameScoreRaw%
                },
}

I get an error from Storyline "error in path: result.score.scaled" when clicking OK in storyline to save the statement.

Storyline only seems to accept the variables if they are inside a String (quoted):

“result":{
                "score":{
                        "min": “%gameScoreMin%”,
                        "max": “%gameScoreMax%”,
                        "scaled": “%gameScoreScaled%”,
                        "raw": “%gameScoreRaw%”
                },
}

Which results in (quoted values /  Strings):

“result":{
                "score":{
                        "min": “0”,
                        "max": “1600”,
                        "scaled": “0.5”,
                        "raw": “800”
                },
}

But that is not valid xAPI for Learning Locker (LRS) to accept (it sends an 400 error back). It expects Numbers, not Strings.

When I hardcoded all values to numbers (e.g. "raw": 800) all works fine

My question: How do I get a Storyline variable in the xAPI statement as Number in stead of a String?

Thanks!