a simple dvl-a50 tcp python client

a50_dvl_tcp_client.py

import socket
import json

def receive_json_data(host='192.168.2.95', port=16171):
    """
    Connects to a TCP server and receives JSON data.

    Args:
        host (str): The server's hostname or IP address.
        port (int): The port number to connect to.

    Returns:
        None
    """
    try:
        # Create a TCP/IP socket
        with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as sock:
            print(f"Connecting to {host}:{port}...")
            sock.connect((host, port))
            print("Connected successfully.")

            buffer = ""
            while True:
                # Receive data in chunks
                data = sock.recv(4096)
                if not data:
                    # No more data from the server
                    print("No more data received. Closing connection.")
                    break

                # Decode bytes to string and add to buffer
                buffer += data.decode('utf-8')

                # Process each complete JSON object in the buffer
                while '\n' in buffer:
                    line, buffer = buffer.split('\n', 1)
                    if line.strip():  # Ignore empty lines
                        try:
                            json_data = json.loads(line)
                            handle_json(json_data)
                        except json.JSONDecodeError as e:
                            print(f"Failed to decode JSON: {e}")
                            print(f"Received line: {line}")

    except ConnectionRefusedError:
        print(f"Could not connect to {host}:{port}. Is the server running?")
    except Exception as e:
        print(f"An error occurred: {e}")

def handle_json(data):
    """
    Processes the received JSON data.

    Args:
        data (dict): The JSON data as a dictionary.

    Returns:
        None
    """
    # Example processing: print the JSON data
    print("Received JSON data:")
    print(json.dumps(data, indent=4))

if __name__ == "__main__":
    receive_json_data()