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asyncio Server-Sent Events implementation

Project description

SSE
===

Simple asyncio/aiohttp wrapper for Server-Sent Events.

Usage
-----

Sending events:

```python
import asyncio
import sse


class Handler(sse.Handler):
@asyncio.coroutine
def handle_request(self):
yield from asyncio.sleep(2)
self.send('foo')
yield from asyncio.sleep(2)
self.send('bar', event='wakeup')

start_server = sse.serve(Handler, 'localhost', 8888)
asyncio.get_event_loop().run_until_complete(start_server)
asyncio.get_event_loop().run_forever()
```

Validating incoming requests:

```python
class Handler(sse.Handler):
def validate_sse(self):
super().validate_sse()
# use self.request / self.payload
if not self.request.path.startswith('/live'):
raise sse.SseException()
```

Sending JSON data:

```python
class Handler(sse.Handler):
@asyncio.coroutine
def handle_request(self):
self.send({'foo': 'bar'})
```

Sending IDs / event names / retry information:

```python
class Handler(sse.Handler):
@asyncio.coroutine
def handle_request(self):
self.send('some data', id=12345, event='something', retry=10000)
```

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0.1

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