Brackets Configuration with GitLab


I have installed the GitLab extension on Brackets IDE. Also created(on my computer) and added SSH public key on GitLab. Now I need to configure Brackets GitLab extension with my GitLab repository, it askes for follwoing details in the config window of Brackets

  1. Api URL - What value should this be?
  2. Private Key - I do have a Private Key file, but how do I extract the value to paste in a text box? Or should it be the Private Key file path on my computer?

Kindly suggest