old_contents: import falcon
  import json
  import rethinkdb as r
  
  class OfferListResource:
      def __init__(self):
          self._db = r.connect('localhost', 28015)
  
      def on_get(self, req, resp):
          """Returns all offers available"""
          cursor = r.db('voyageavecmoi').table('offers').run(self._db)
          resp.body = json.dumps(list(cursor))
  
  app = falcon.API()
  app.add_route('/api/offers', OfferListResource())
  
new_contents: import falcon
  import json
  import rethinkdb as r
  
  MAX_OFFERS = 100
  
  class OfferListResource:
      def __init__(self):
          self._db = r.connect('localhost', 28015)
  
      def on_get(self, req, resp):
          """Returns all offers available"""
          try:
              limit, page = map(int, (req.params.get('limit', MAX_OFFERS), req.params.get('page', 1)))
          except ValueError as e:
              raise falcon.HTTPInvalidParam("Limit or page should be a number", "limit or page")
  
          if page < 1:
              raise falcon.HTTPInvalidParam("Page cannot be negative or null", "page")
          elif limit < 1:
              raise falcon.HTTPInvalidParam("Limit cannot be negative or null", "page")
          else:
              cursor = r.db('voyageavecmoi').table('offers').slice(page - 1).limit(limit).run(self._db)
              count = r.db('voyageavecmoi').table('offers').count()
              resp.body = json.dumps(list(cursor))
              resp.append_header('X-Max-Elements', count)
  
  app = falcon.API()
  app.add_route('/api/offers', OfferListResource())
  
subject: Implement paging for the offers (closes #12)