Get to "Solna" / "Solna station"
and the On-Inn Basic bar & kök on Råsundavägen 37 that is closest to Stockholm City
id est the south exit from the Pendeltåg (https://api.sl.se/fordonspositioner#PT )
at "Solna" / "Solna station" and the north exit from Tvärbanan ( https://api.sl.se/fordonspositioner#TVB )
at "Solna station" ...
You may want look at these (1-4):
1) Resrobot ( "B" "Stop / Address / Point of interest" "Solna station" )
https://reseplanerare.resrobot.se/index.html#!P|TP!histId|0!histKey|H63231
and/or
2) Traffic information on Pendeltåg / Tvärbanan ( that goes to "Solna" / "Solna station" ):
https://api.sl.se/fordonspositioner#PT
https://api.sl.se/fordonspositioner#TVB
(that also has information on "Roslagsbanan" / "Saltsjöbanan" / "Lidingöbanan" / "Linje 7" / "Gröna linjen" / "Röda linjen" and "Blå linjen)
and/or
3) Departures from Solna ( "Solna" )
https://www.trafikverket.se/trafikinformation/tag/?TrainOrStation=Solna&ArrDep=departure
and/or
4) Arrivals to Solna ( "Solna" )
https://www.trafikverket.se/trafikinformation/tag/?TrainOrStation=Solna&ArrDep=arrival
OnOn from the hares Sprintosaurus ( 0760-815247 , PGEgaHJlZj0ibWFpbHRvOmhhbnMuZXJpY3NvbkBicmVkYmFuZC5uZXQiPmhhbnMuZXJpY3NvbkBicmVkYmFuZC5uZXQ8L2E+ ) and Nordic Semen