text: # -*- coding: utf-8 -*-
  """Tutorial on using the InfluxDB client."""
  
  import argparse
  
  from influxdb import InfluxDBClient
  
  
  def main(host='localhost', port=8086):
      """Instantiate a connection to the InfluxDB."""
      user = 'root'
      password = 'root'
      dbname = 'example'
      dbuser = 'smly'
      dbuser_password = 'my_secret_password'
      query = 'select value from cpu_load_short;'
      json_body = [
          {
              "measurement": "cpu_load_short",
              "tags": {
                  "host": "server01",
                  "region": "us-west"
              },
              "time": "2009-11-10T23:00:00Z",
              "fields": {
                  "Float_value": 0.64,
                  "Int_value": 3,
                  "String_value": "Text",
                  "Bool_value": True
              }
          }
      ]
  
      client = InfluxDBClient(host, port, user, password, dbname)
  
      print("Create database: " + dbname)
      client.create_database(dbname)
  
      print("Create a retention policy")
      client.create_retention_policy('awesome_policy', '3d', 3, default=True)
  
      print("Switch user: " + dbuser)
      client.switch_user(dbuser, dbuser_password)
  
      print("Write points: {0}".format(json_body))
      client.write_points(json_body)
  
      print("Querying data: " + query)
      result = client.query(query)
  
      print("Result: {0}".format(result))
  
      print("Switch user: " + user)
      client.switch_user(user, password)
  
      print("Drop database: " + dbname)
      client.drop_database(dbname)
  
  
  def parse_args():
      """Parse the args."""
      parser = argparse.ArgumentParser(
          description='example code to play with InfluxDB')
      parser.add_argument('--host', type=str, required=False,
                          default='localhost',
                          help='hostname of InfluxDB http API')
      parser.add_argument('--port', type=int, required=False, default=8086,
                          help='port of InfluxDB http API')
      return parser.parse_args()
  
  
  if __name__ == '__main__':
      args = parse_args()
      main(host=args.host, port=args.port)
  