Engine.IO Examples

This directory contains example Engine.IO applications that are compatible with asyncio and the aiohttp framework. These applications require Python 3.5 or later.

simple.py

A basic application in which the client sends messages to the server and the server responds.

latency.py

A port of the latency application included in the official Engine.IO Javascript server. In this application the client sends ping messages to the server, which are responded by the server with a pong. The client measures the time it takes for each of these exchanges and plots these in real time to the page.

This is an ideal application to measure the performance of the different asynchronous modes supported by the Engine.IO server.

Running the Examples

To run these examples, create a virtual environment, install the requirements and then run:

$ python simple.py

or:

$ python latency.py

You can then access the application from your web browser at http://localhost:8080.