Make requests to a login endpoint (ending with '/login') and save the access token to use in another requests.
Go to Preferences menu item and select the Plugins tab. Now press Reveal Plugins Folder.
Into the plugins folder, clone this repository.
Now that you have installed this plugin, first let it enabled.
Make a request to an endpoint ending with '/login' that will bring an 'access_token' property.
This plugin will create an TemplateTag called code2_access_token and you use on your Bearer Authentication.
To use that TemplateTag you should use Ctrl+Space and find code2_access_token in the items or type code2, press Ctrl+Space and select the correct item.