Use python dropbox API with django -

i'm using dropboxoauth2flow method described dropbox api v1.6 in django v1.5.3 application , i'm having 400 error when redirected dropbox oauth2 authorization page.

when go to dropbox_auth_start url redirected to:

https://www.dropbox.com/1/oauth2/authorize?state=twd4eh4nzk5nlcuhxe7ffa%3d%3d&redirect_uri=http%3a%2f%2fmydomain.com%2fdropbox_auth_finish&response_type=code&client_id=blahblahblah

and 400 error occurs.

the "dropbox-auth-csrf-token" written in session file way.

my django code:

views.py

def get_dropbox_auth_flow(web_app_session):     redirect_uri = "http://www.mydomain.com"     return dropboxoauth2flow('blahblahblah', 'blehblehbleh', redirect_uri, web_app_session, "dropbox-auth-csrf-token")  # url handler /dropbox-auth-start def dropbox_auth_start(request):     authorize_url = get_dropbox_auth_flow(request.session).start()     return httpresponseredirect(authorize_url)  # url handler /dropbox-auth-finish def dropbox_auth_finish(request):     try:         access_token, user_id, url_state = get_dropbox_auth_flow(request.session).finish(request.get)     except dropboxoauth2flow.badrequestexception, e:         http_status(400)     except dropboxoauth2flow.badstateexception, e:         # start auth flow again.         return httpresponseredirect("http://www.mydomain.com/dropbox_auth_start")     except dropboxoauth2flow.csrfexception, e:         return httpresponseforbidden()     except dropboxoauth2flow.notapprovedexception, e:         raise e     except dropboxoauth2flow.providerexception, e:         raise e 

urls.py

from django.conf.urls import patterns, url, include django.contrib import admin admin.autodiscover()   urlpatterns = patterns('',     url(r'^dropbox_auth_start/?$',views.dropbox_auth_start),     url(r'^dropbox_auth_finish/?$',views.dropbox_auth_finish), ) 

just @smarx said, switched http , https, , worked fine.