@http.route('/zimo_lunch/select/<string:db_name>', type='http', auth='none')
def trash_demo(self, db_name=None):
    print ('db_name',db_name)
    db = request.params.get('db')
    print ('db',db)
    db=db_name
    request.session.db = db
    print ('--------request.session.db----------',request.session.db)
    order = request.env['sale.order'].search([('name','=','S00020')])
    print ('--------ordr----------',order)
    return 'hello world --[%s]'%order.name or False

json.loads(kw['state'])

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