Callback URL to get back to application



I am working on a code that based on a tutorial where I have to put CALLBACK URL in the program, which is the same CALLBACK URL that I put in “My Application” page. I tried to put but when I compile my application, it goes to browser for Authorization, and then after that it can’t be redirected back to my application. Causing it to look like it is not authorized yet and the app wont be running. I assumed that after it authorized and go to the URL, my application will be bring to front (as how it is programmed).

Can you please let me know what should I put in the CALLBACK URL field both in the program and in “My Application” page?
FYI, I do not have a domain so I am quiet confused about this.

Thanks so much. Any help will be really appreciated.


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