Why can't my custom app access product details in a password protected store?

[raeen]

I have created a custom app (through Develop app button) to read product details in shopify store by an external app through API.

Below is the error I am getting in the external app while fetching details 

"Auto connect to Shopify failed! cURL error 6: Could not resolve host: https (see https://curl.haxx.se/libcurl/c/libcurl-errors.html) for https://https://1f0c00.myshopify.com//admin/api/2023-04/shop.json"

The shopify shop is password protected. And I am not able to fetch the details by external app. Please see snapshot and give input as possible.

I highly appreciate your help