How to use beaker for multiple bottle apps

Question

The documentation of Bottle show how to use beaker for session management, like the following

import bottle
from beaker.middleware import SessionMiddleware

session_opts = {
    'session.type': 'file',
    'session.cookie_expires': 300,
    'session.data_dir': './data',
    'session.auto': True
}
app = SessionMiddleware(bottle.app(), session_opts)

@bottle.route('/test')
def test():
  s = bottle.request.environ.get('beaker.session')
  s['test'] = s.get('test',0) + 1
  s.save()
  return 'Test counter: %d' % s['test']

bottle.run(app=app)

My problem is, I have multiple bottle applications, and each of them serves a virtual host (that is powered by cherrypy). So I can not use decorate "@bottle.route", instead, I need to use decorate like "app1.route('/test')" , "app2.route('/test')" .

But if I warp app with Beaker middleware, like the following,

app1= Bottle()
app2= Bottle()
app1 = SessionMiddleware(app1, session_opts)
app2 = SessionMiddleware(app2, session_opts)

when python run to the following ,

@app1.route('/test')
def test():
    return 'OK'

it will report error, AttributeError: 'SessionMiddleware' object has no attribute 'route'

That's for sure, because now app1 is actually a 'SessionMiddleware' not a Bottle app.

How to solve that issue?

Answer 1

After digging into the beaker source code a little, finally I found the way.

Use the decorator this way:

@app1.wrap_app.route('/test')
def test():
    return 'OK'