Chilkat2-Python

Duplicate Python websockets

See more WebSocket Examples

Demonstrates how to duplicate the following Python client-side websocket snippet:

async with websockets.connect('ws://192.168.1.35/websocket') as websocket:
await websocket.send("http.controller_login:username=xxx&password=xxxxx")
response = await websocket.recv()

Chilkat2-Python

import sys
import chilkat2

success = False

# This example requires the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.

# In Python, the following line of code does more than just connect:
# 
#      websockets.connect('ws://192.168.1.35/websocket')
# 
# It is connecting to 192.168.1.35 without using TLS.  If the URI starts with "wss://", then TLS should be used.
# But this URI begins with just "ws:/", so no TLS.

# Also, after connecting, a GET request is sent to the /websocket endpoint.
# In summary, the websockets.connect function is establishing the connection and it sends a GET request.

# First establish the connection.
# No TLS, use the default HTTP port 80.
rest = chilkat2.Rest()
success = rest.Connect("192.168.1.35",80,False,False)
if (success != True):
    print(rest.LastErrorText)
    sys.exit()

ws = chilkat2.WebSocket()

# Tell the WebSocket to use this connection.
success = ws.UseConnection(rest)
if (success != True):
    print(ws.LastErrorText)
    sys.exit()

# Add the standard WebSocket open handshake headers that will be needed.
# (This adds the required HTTP request headers to the rest object.)
ws.AddClientHeaders()

# Now send the GET request to /websockets.
responseBody = rest.FullRequestNoBody("GET","/websockets")
if (rest.LastMethodSuccess != True):
    print(rest.LastErrorText)
    sys.exit()

# If successful, the HTTP response status code should be 101,
# and the response body will be empty. (If it failed, we'll have a look
# at the response body..)
statusCode = rest.ResponseStatusCode
print("Response status code: " + str(statusCode))

if (statusCode != 101):
    print(responseBody)
    print("-- Failed because of unexpected response status code.")
    sys.exit()

# We have the expected 101 response, so let's now validate the 
# contents of the response.
success = ws.ValidateServerHandshake()
if (success != True):
    print(ws.LastErrorText)
    sys.exit()

print("WebSocket connection successful.")

# The application may now begin sending and receiving frames on the WebSocket connection.

# The 1st frame sent by the Python snippet is:
# 
#     websocket.send("http.controller_login:username=xxx&password=xxxxx")
# 

# Send the same using Chilkat, and get the response.
finalFrame = True
success = ws.SendFrame("http.controller_login:username=xxx&password=xxxxx",finalFrame)
if (success != True):
    print(ws.LastErrorText)
    sys.exit()

# Read an incoming frame.
success = ws.ReadFrame()
if (success != True):
    print("Failed to receive a frame")
    print("ReadFrame fail reason = " + str(ws.ReadFrameFailReason))
    print(ws.LastErrorText)
    sys.exit()

# Show the string that was received.
receivedStr = ws.GetFrameData()
print("Received: " + receivedStr)

# Continue with whatever additional communications are desired...
# ....
#