send a binary json message to a tcp server in python

To send a binary JSON message to a TCP server in Python, we need to first serialize the JSON data to a binary format and then send it over the TCP connection. We can use the json and socket modules in Python to accomplish this.

Here's an example code snippet that demonstrates how to do this:

main.py
import json
import socket

# Create a TCP socket object
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

# Connect to the TCP server
sock.connect(('localhost', 8888))

# Serialize the JSON data to binary format
json_data = json.dumps({'hello': 'world'}).encode('utf-8')

# Send the binary data over the TCP connection
sock.send(json_data)

# Close the socket connection
sock.close()
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In this example, we create a TCP socket object using the socket module and connect to a server running on localhost at port 8888. We then serialize a JSON object to binary format using the json module's dumps() method and the encode() method to convert the serialized data to bytes.

Finally, we send the binary data over the TCP connection using the send() method of the socket object and close the connection using the close() method.