Flask subdomain variable not captured, other routes 404

Question

I'm trying to use Flask's subdomain parameter, but having some trouble.

I've configured my local /etc/hosts/ file to point example.com and blog.example.com to 127.0.0.1.

For the 'index' route the subdomain parameter doesn't get captured when I browse to http://blog.example.com:5000. When I try to print var it prints "var is ".

The 'login' route 404s, but I can't figure out why. Any help would be greatly appreciated!

from flask import Flask

app = Flask(__name__)
app.debug=True
app.config['SERVER_NAME'] = 'example.com'


# prints "var is <invalid>"
@app.route('/', subdomain="<var>", methods=['GET'])
def index(var):
    print "var is %s" % var
    return "Hello World %s" % var

# This 404s
@app.route('/login/', methods=['GET'])
def login():
    return "Login Here!"

if __name__ == '__main__':
    app.run(host='example.com', debug=True)

Answer 1

You need to include the port number in your SERVER_NAME config.

app.config['SERVER_NAME'] = 'example.com:5000'

Should fix it.