How to create OAuth client ID for new ASW ec2 instance under http?

Hallo,
I installed ASW ec2 instance
with Selected Ubuntu 20, Free tier eligible
and I got instance with root like

http://ec2-NN-NN-NN-NN.eu-central-1.compute.amazonaws.com/
Code (markup):

I have installed laravel 8/vuejs app and my app using OAuth client ID
For my local server (Ubuntu 18 on my laptop) I created client key with url

http://127.0.0.1:8000
Code (markup):

But I failed to make the similar for my ASW ec2 instance : https://imgur.com/a/tIQiPAe
1) If there is a way to create OAuth…

How to create OAuth client ID for new ASW ec2 instance under http?