Shopify App Bridge and REST Admin API

Hi,

I’m creating Shopify App.
I’d like to know way of “Shopify App Bridge and REST Admin API” implementation.

I have couple questions.

Can I call REST Admin API through Shopify App Bridge?

Should I call REST API on server-side using access token ?

Thanks

Solved this on Japan forum.
https://community.shopify.com/post/628828