Is it possible to represent a list consisting of multiple variables in the query converted into JSON?

[Bogusz Janiak]

Hi @c-martinez @albertmeronyo! First of all, Thank you for your excellent work.

I do play with the tool you created for some time, and I was wondering if there is a way to represent a python-like list in the transformed JSON. The caveat is that the list should contain multiple variables that query extracts. Let me show you an example of what I am trying to achieve:

#+ "coordinates": [1.234, 3.555],

I can place a hardcoded list with two decimal values in the decorated transform clause. This will indeed allow me to represent a python-like list with multiple values separated by a comma, but I would like to replace those values with variables that are coming from the query. Just like this:

#+ "coordinates": [?a_variable, ?b_variable],

Unfortunately, this doesn't work and the JSON output doesn't produce what I was expecting. You can see the output below.

"coordinates": [ { "a_variable": null }, { "b_variable": null } ],

I have also tried capturing the whole list between "" and the same for variables inside the list, but it didn't help.

Is there any way I could achieve this? My specific goal is to capture latitude and longitude using the SPARQL query. Cast them both as decimals and represent the inside of a single list. For now, I ended up concatenating a string from both coordinates and closed brackets. However, this doesn't feel good.

Thank you in advance for your help!

[Carlos Martinez]

Hi @Montanaz0r ! Nice to hear you find grlc useful!

Very good question! I'm not sure this is possible. But I would guess @pasqLisena might know -- he is the real expert in transform syntax.

@pasqLisena, any ideas?