nil-service 1.0.20

Python binding for nil-service: boost net library wrapper

nil-service

Python bindings for nil-service - a high-performance networking service toolkit for building client/server applications.

Features

• Multiple Protocols: UDP, TCP, WebSocket, HTTP, and pipe support
• Client & Server Modes: Flexible role-based service creation
• Event-Driven API: Async-friendly event handlers
• Lightweight: Minimal dependencies, built on C++ for performance
• Cross-Platform: Support for POSIX systems

Installation

pip install nil-service

Quick Start

Basic Server

from nil_service import Service

# Create an HTTP server
server = Service.http_server(port=8000)

@server.on_ready
def on_ready():
    print("Server started")

@server.on_message
def on_message(connection_id, data):
    # data is bytes
    text = data.decode("utf-8", errors="replace")
    print(f"Received from {connection_id}: {text}")
    server.send(connection_id, b"Hello back!")

server.run()

WebSocket Server

from nil_service import Service

server = Service.http_server(port=8000)
ws = server.use_ws("/ws")

@ws.on_connect
def on_connect(connection_id):
    print(f"Client {connection_id} connected")

@ws.on_message
def on_message(connection_id, data):
    text = data.decode("utf-8", errors="replace")
    print(f"Received: {text}")
    ws.publish(data)  # Broadcast to all (data is bytes)

server.run()

TCP Client

from nil_service import Service

client = Service.tcp_client(host="localhost", port=9000)

@client.on_connect
def on_connect(connection_id):
    client.send(connection_id, b"Hello Server!")

@client.on_message
def on_message(connection_id, data):
    text = data.decode("utf-8", errors="replace")
    print(f"Received: {text}")

client.run()

Service Types

Protocol	Mode	Use Case
self	standalone	Loopback/echo service
udp	client/server	Connectionless messaging
tcp	client/server	Reliable stream transport
ws	client/server	WebSocket communication
http	server	Web server with routing
pipe	standalone	POSIX named pipes

API Reference

Service Methods

• run() - Block and run the event loop
• poll() - Process pending events (non-blocking)
• stop() - Stop the service
• send(connection_id, data) - Send to a specific connection
• publish(data) - Broadcast to all connections

Event Handlers

• @service.on_ready - Service initialized
• @service.on_connect - New connection
• @service.on_disconnect - Connection closed
• @service.on_message - Data received (bytes)

Documentation

For detailed API documentation and more examples, visit:

• C++ Documentation
• C API Guide

License

CC BY-NC-ND 4.0

Support

For issues, questions, or contributions, visit the GitHub repository.