How to make network call to the app's backend from the checkout ui extension code?

[nitinpatel278]

I've found this https://shopify.dev/apps/purchase-options/app-extensions/authenticate 

but it doesn't work for the new Checkout UI extensions. Any idea what is the way to get the access token for the app backend & make API calls from within the checkout UI extension? 

[abhishekthory]

you can use 

  const sessionToken = useSessionToken();

for getting session token and then you have to put in header for as a Bearer token for request