python ultimaker printer api

Python-urtimaker-printer-api

Swaggerドキュメントから派生したPythonでのUltimaker Printer APIクライアントの実装（http：// printer_ip/docs/api/）およびリクエストテスト。

デモ

https://github.com/vanderbilt-design-studio/poller-pi/blob/master/printers.pyを参照してください。これにより、https://vanderbilt.design/のプリンターフィード検索が検索されます（下にスクロールします）

使用法

 from ultimaker import Printer , Identity , CredentialsDict
IDENTITY = Identity ( 'Application' , 'Anonymous' )
IP = '192.168.1.18'
PORT = 80

credentials_dict = CredentialsDict ( 'credentials.json' )

printer = Printer ( IP , PORT , IDENTITY )
printer . put_system_display_message ( "It's over, Anakin!" , "Acquire high ground" )

MDNS

ローカルネットワークがMDNSをサポートしている場合（一部の学校/コーポレートネットワークは無効になります）、Zeroconfパッケージでプリンターを自動的に発見できます。

 ultimaker_application_name = 'Application'
ultimaker_user_name = ' Anonymous
ultimaker_credentials_filename = './credentials.shelve'


from typing import Dict , List
import logging
import json
import socket
import base64
import uuid
import shelve

from zeroconf import ServiceInfo
from ultimaker import Printer , Credentials , Identity
import imagehash

class PrinterListener :

  def __init__ ( self , credentials_dict : shelve . Shelf ):
    self . printers_by_name : Dict [ str , Printer ] = {}
    self . credentials_dict : shelve . Shelf = credentials_dict

  def remove_service ( self , zeroconf , type , name ):
    del self . printers_by_name [ name ]
    logging . info ( f"Service { name } removed" )

  def add_service ( self , zeroconf , type , name ):
    info : ServiceInfo = zeroconf . get_service_info ( type , name )
    if len ( info . addresses ) == 0 :
      logging . warning ( f"Service { name } added but had no IP address, cannot add" )
      return
    address = socket . inet_ntoa ( info . addresses [ 0 ])
    identity = Identity ( ultimaker_application_name , ultimaker_user_name )
    credentials = self . credentials_dict . get ( str ( printer . get_system_guid ()), None )
    self . printers_by_name [ name ] = Printer ( address , info . port , identity ,
                                          credentials )
    logging . info ( f"Service { name } added with guid: { printer . get_system_guid () } " )

  def printer_jsons ( self ) -> List [ Dict [ str , str ]]:
    printer_jsons : List [ Dict [ str , str ]] = []
    # Convert to list here to prevent concurrent changes by zeroconf affecting the loop
    for printer in list ( self . printers_by_name . values ()):
      try :
        printer_status_json : Dict [ str , str ] = printer . into_ultimaker_json ()
        printer_jsons . append ( printer_status_json )

        if printer . credentials is not None and str ( printer . get_system_guid (
        )) not in self . credentials_dict :
          logging . info (
              f'Did not see credentials for { printer . get_system_guid () } in credentials, adding and saving'
          )
          self . credentials_dict [ str ( printer . get_system_guid ())] = printer . credentials
          self . credentials_dict . sync ()
      except Exception as e :
        if type ( e ) is KeyboardInterrupt :
          raise e
        logging . warning (
            f'Exception getting info for printer { printer . get_system_guid () } , it may no longer exist: { e } '
        )
    return printer_jsons


if __name__ == '__main__' :
  from zeroconf import ServiceBrowser , Zeroconf
  zeroconf = Zeroconf ()
  shelf = shelve . open ( ultimaker_credentials_filename )
  listener = PrinterListener ( shelf )
  browser = ServiceBrowser ( zeroconf , "_ultimaker._tcp.local." , listener )
  try :
    input ( 'Press enter to exit n ' )
  finally :
    print ( 'Exiting...' )
    shelf . close ()
    zeroconf . close ()