aiohttp-sse

The EventSource interface is used to receive server-sent events. It connects to a server over HTTP and receives events in text/event-stream format without closing the connection. aiohttp-sse provides support for server-sent events for aiohttp.

Installation

Installation process as simple as:

$ pip install aiohttp-sse

Example

import asyncio
from datetime import datetime

from aiohttp import web

from aiohttp_sse import sse_response


async def hello(request: web.Request) -> web.StreamResponse:
    async with sse_response(request) as resp:
        while resp.is_connected():
            time_dict = {"time": f"Server Time : {datetime.now()}"}
            data = json.dumps(time_dict, indent=2)
            print(data)
            await resp.send(data)
            await asyncio.sleep(1)
    return resp


async def index(_request: web.Request) -> web.StreamResponse:
    html = """
        <html>
            <body>
                <script>
                    var eventSource = new EventSource("/hello");
                    eventSource.addEventListener("message", event => {
                        document.getElementById("response").innerText = event.data;
                    });
                </script>
                <h1>Response from server:</h1>
                <div id="response"></div>
            </body>
        </html>
    """
    return web.Response(text=html, content_type="text/html")


app = web.Application()
app.router.add_route("GET", "/hello", hello)
app.router.add_route("GET", "/", index)
web.run_app(app, host="127.0.0.1", port=8080)

EventSource Protocol

Requirements

aiohttp 3+

License

The aiohttp-sse is offered under Apache 2.0 license.

Release files for aiohttp-sse 2.2.0

For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.

Source distribution (sdist)

Source distribution for aiohttp-sse 2.2.0
File	Size	Uploaded
aiohttp-sse-2.2.0.tar.gz	9.4 kB	Feb 29, 2024	Details

Built distribution (wheel)

Table of built distributions (wheels) for aiohttp-sse 2.2.0
File	Interpreter	ABI	Platform	Reset
aiohttp_sse-2.2.0-py3-none-any.whl 6.7 kB Feb 29, 2024	Python 3	none	any	Details

Total release size: 16.2 kB

Release files / aiohttp-sse-2.2.0.tar.gz

Download URL	aiohttp-sse-2.2.0.tar.gz
Size	9.4 kB
Tags	Source
SHA-256 checksum How to use checksums	`a48dd5774031d3f41a29e159ebdbb93e89c8f37c1e9e83e196296be51885a5c2`
BLAKE2b-256 checksum How to use checksums	`80df4ddb30e689695fd91cf41c072e154061120ed166e8baf6c9a0020f27dffc`
Upload date	Feb 29, 2024
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`twine/5.0.0 CPython/3.9.18`

Release files / aiohttp_sse-2.2.0-py3-none-any.whl

Download URL	aiohttp_sse-2.2.0-py3-none-any.whl
Size	6.7 kB
Tags	Python 3
SHA-256 checksum How to use checksums	`339f9803bcf4682a2060e75548760d86abe4424a0d92ba66ff4985de3bd743dc`
BLAKE2b-256 checksum How to use checksums	`5ab8bf448b1d2dbe6cf16c3be0b92230a8f032f2f0ed159a2299284c709819c8`
Upload date	Feb 29, 2024
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`twine/5.0.0 CPython/3.9.18`