Redirect URL in app register

[abp2024]

I am using Resberry Pi to get web Oauth2 from python_fitbit.  For Resberry Pi, the loopback address is 0.0.0.0.  If use 127.0.0.1 as Redirect URL when registering Fitbit app, it will show 

'''This site can be reached.
127.0.0.1 refused to connect.'''

I search through Resberry Pi forum and seems like Resberry Pi needs to use 0.0.0.0 for loopback.  However if I set Redirect URL as http://0.0.0.0:22/ ,it said

• Callback url http://0.0.0.0:22/ protocol is HTTP. HTTPS is required.

How can I solve it?

Thank you.

[Gordon-C]

Hi @abp2024 

I don't know if Raspberry PI requires 0.0.0.0 for redirection, but try the callback URL as https://0.0.0.0:22.