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simplify example implementation of the lifespan protocol #242

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simplify example implementation of the lifespan protocol #242

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18 changes: 9 additions & 9 deletions specs/lifespan.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -18,15 +18,15 @@ A possible implementation of this protocol is given below::

async def app(scope, receive, send):
if scope['type'] == 'lifespan':
while True:
message = await receive()
if message['type'] == 'lifespan.startup':
... # Do some startup here!
await send({'type': 'lifespan.startup.complete'})
elif message['type'] == 'lifespan.shutdown':
... # Do some shutdown here!
await send({'type': 'lifespan.shutdown.complete'})
return
message = await receive()
assert message['type'] == 'lifespan.startup'
... # Do some startup here!
await send({'type': 'lifespan.startup.complete'})

message = await receive()
assert message['type'] == 'lifespan.shutdown'
... # Do some shutdown here!
await send({'type': 'lifespan.shutdown.complete'})
else:
pass # Handle other types

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