javascript - firebase getting only keys then getting data

Question

i have a data structure as following at the url www.example.firebase.com/

{
  "companyList" : {
        "compkey1" : {
        "url1":"somelink1",
        "url2":somelink2
         },
         "compkey2" : {
         "url1":"somelink1",
         "url2":"somelink2"
         }
   }
}

What i want to achieve is that i want firebase to return first the list of companies which is

  compkey1
  compkey2

and not any child data

then if the user want to see a specific company i want them to go to that url like so

  www.example.firebase.com/companyList/compkey2

new to firebase so explain as such.

Answer 1

Waitting for answers