Using dynamic subdomains with pyramid

[Alejandro Jatib]

Hey folks,

I want to use dynamic subdomains as follows:

name1.domainapp.com

name2.domainapp.com

nameX.domainapp.com

When someone enters in these directions should be redirected to:

domainapp.com/name1

domainapp.com/name2

domainapp.com/namex

I tried several examples I found and I end up doing this:

in __init__.py:

    def pregen(request, elements, kw):

        #kw['_app_url'] = 'http://www.domainapp.com/' + request.host.split('.')[0]

        return elements, kw

    def req_sub(info, request):

        return request.host.split('.')[0] != 'www'

    

    config.add_route('sub_only', '/{id:.*?}',

                 custom_predicates=(req_sub,),

                 #pregenerator=pregen

                 )

in views.py:

@view_config(route_name='sub_only')

def Subdomain(request):

        # redirect the user to "http://sub.example.com", regardless of whether

        # request.host is "example.com" or "sub.example.com"

        return HTTPFound(location='http://www.domainapp.com/' + request.host.split('.')[0])

Any suggestions to make it better?

Thanks

[Jonathan Vanasco]

I just do the URL rewriting like this on my proxy server or load
balancers.

It's way easier to just have nginx , varnish, etc handle this.

[Alejandro Jatib]

I forget to say that i was using pyramid_appengine and hosting my app in appengine.

[Michael Merickel]

If you can't do this on the web server as Jonathan suggested then I would do it as a custom middleware that wraps your Pyramid app. It could check the request's host and mutate the script_name/path_info as necessary before it gets to Pyramid.

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