Marking data into OSM MAP

Hi Team,

I am facing a problem in Displaying data in OSM Map ,

I have show Patients Address data in Map, for that I have to make data of patients as list of Dictionaries. which I am not aware of How to make that list of Dictionaries using expression editor.

But manually i can add list of dictionaries (Dummy) and show them on MAP as below, 

{

{name: "abc", lat: 17.9467, lon: 78.2879, address: "abc street.", marker: {icon: "bus", iconShape: "marker"}},
{name: "xyz", lat: 17.23, lon: 78.879, address: "abc street.", marker: {icon: "bus", iconShape: "marker"}},
{name: "QWERTY", lat: 17.6947, lon: 78.8279, address: "abc street.", marker: {icon: "bus", iconShape: "marker"}}
}

Which Results me the following, I am able to make manually dictionaries , But i dont know how values which are present in recordtype are converted into list of dictionaries. so i can show them on OSM .

Regards,

J Vinay