CkPython

Send StringBuilder Contents over a Socket

Demonstrates Socket.SendSb, which encodes the contents of a StringBuilder using StringCharset and sends the resulting bytes.

Background. Text send and receive operations encode and decode bytes using the StringCharset property. For plain ASCII or UTF-8 protocols, setting StringCharset to utf-8 is a safe default.

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CkPython

import sys
import chilkat

success = False

socket = chilkat.CkSocket()

#  Connect to the server using TLS.  The 3rd argument enables the TLS handshake after the TCP
#  connection succeeds; the 4th is the maximum time to wait, in milliseconds.
bTls = True
maxWaitMs = 5000
success = socket.Connect("example.com",5000,bTls,maxWaitMs)
if (success == False):
    print(socket.lastErrorText())
    sys.exit()

#  StringCharset controls the character encoding used when sending and receiving text.
socket.put_StringCharset("utf-8")

#  Build the text to send in a StringBuilder, then send its contents.
sb = chilkat.CkStringBuilder()
sb.Append("SET temperature 21\r\n")

success = socket.SendSb(sb)
if (success == False):
    print(socket.lastErrorText())
    sys.exit()

print("Message sent.")