Add optional redirect_uri parameter to utils.oauth_url

discord/utils.py

@@ -75,7 +75,7 @@ def parse_time(timestamp):
     return None
 
 
-def oauth_url(client_id, permissions=None, server=None):
+def oauth_url(client_id, permissions=None, server=None, redirect_uri=None):
     """A helper function that returns the OAuth2 URL for inviting the bot
     into servers.
 
@@ -88,12 +88,17 @@ def oauth_url(client_id, permissions=None, server=None):
         permissions.
     server : :class:`Server`
         The server to pre-select in the authorization screen, if available.
+    redirect_uri : str
+        An optional valid redirect URI.
     """
     url = 'https://discordapp.com/oauth2/authorize?client_id={}&scope=bot'.format(client_id)
     if permissions is not None:
         url = url + '&permissions=' + str(permissions.value)
     if server is not None:
         url = url + "&guild_id=" + server.id
+    if redirect_uri is not None:
+        from urllib.parse import urlencode
+        url = url + "&response_type=code&" + urlencode({'redirect_uri': redirect_uri})
     return url