wehub-resource-sync
83 lines
2.2 KiB
Python
83 lines
2.2 KiB
Python
# flake8: noqa
|
|
|
|
# __begin_example__
|
|
import time
|
|
from typing import Generator
|
|
|
|
import requests
|
|
from starlette.responses import StreamingResponse
|
|
from starlette.requests import Request
|
|
|
|
from ray import serve
|
|
|
|
|
|
@serve.deployment
|
|
class StreamingResponder:
|
|
def generate_numbers(self, max: int) -> Generator[str, None, None]:
|
|
for i in range(max):
|
|
yield str(i)
|
|
time.sleep(0.1)
|
|
|
|
def __call__(self, request: Request) -> StreamingResponse:
|
|
max = request.query_params.get("max", "25")
|
|
gen = self.generate_numbers(int(max))
|
|
return StreamingResponse(gen, status_code=200, media_type="text/plain")
|
|
|
|
|
|
serve.run(StreamingResponder.bind())
|
|
|
|
r = requests.get("http://localhost:8000?max=10", stream=True)
|
|
start = time.time()
|
|
r.raise_for_status()
|
|
for chunk in r.iter_content(chunk_size=None, decode_unicode=True):
|
|
print(f"Got result {round(time.time()-start, 1)}s after start: '{chunk}'")
|
|
# __end_example__
|
|
|
|
|
|
r = requests.get("http://localhost:8000?max=10", stream=True)
|
|
r.raise_for_status()
|
|
for i, chunk in enumerate(r.iter_content(chunk_size=None, decode_unicode=True)):
|
|
assert chunk == str(i)
|
|
|
|
|
|
# __begin_cancellation__
|
|
import asyncio
|
|
import time
|
|
from typing import AsyncGenerator
|
|
|
|
import requests
|
|
from starlette.responses import StreamingResponse
|
|
from starlette.requests import Request
|
|
|
|
from ray import serve
|
|
|
|
|
|
@serve.deployment
|
|
class StreamingResponder:
|
|
async def generate_forever(self) -> AsyncGenerator[str, None]:
|
|
try:
|
|
i = 0
|
|
while True:
|
|
yield str(i)
|
|
i += 1
|
|
await asyncio.sleep(0.1)
|
|
except asyncio.CancelledError:
|
|
print("Cancelled! Exiting.")
|
|
|
|
def __call__(self, request: Request) -> StreamingResponse:
|
|
gen = self.generate_forever()
|
|
return StreamingResponse(gen, status_code=200, media_type="text/plain")
|
|
|
|
|
|
serve.run(StreamingResponder.bind())
|
|
|
|
r = requests.get("http://localhost:8000?max=10", stream=True)
|
|
start = time.time()
|
|
r.raise_for_status()
|
|
for i, chunk in enumerate(r.iter_content(chunk_size=None, decode_unicode=True)):
|
|
print(f"Got result {round(time.time()-start, 1)}s after start: '{chunk}'")
|
|
if i == 10:
|
|
print("Client disconnecting")
|
|
break
|
|
# __end_cancellation__
|