I want to display a data into table format on my wordpress website from the data available from below two JSON URL's

/all /countries?sort={parameter} -- Here, we can replace the parameter from the data from 1st url.

API Details:

I am very new to this API & JSON thing, but if you will guide me with proper steps then I can implement that, as I am also a database developer. Coding will not be issue with me.

Thanks in Advance