Invalid redirect URI on spotify auth

I try to auth user through my app with spotify Web API but I receive this error:

INVALID_CLIENT: Invalid redirect URI

URL:

GET https://accounts.spotify.com/authorize/?client_id=6ae90bf75bf748c8874a75d16682f0c5&response_type=code&redirect_uri=https%3A%2F%2Fexample.com%2Fcallback&scope=user-read-private%20user-read-email

I cant see where is the problem... Can you help?

Solution 1:

You have to add the redirect URI to the White-list in "My Applications" panel.

e.g http://example.com/callback/

Solution 2:

app.js:

var redirect_uri = 'http://localhost:8888/callback';

(https://developer.spotify.com/dashboard) Spotify > My application:

http://localhost:8888/callback

Dont forget to save.