আমার কাছে দুটি ফাংশন সহ একটি সাধারণ অ্যাপ রয়েছে, একটি বিষয় শোনার জন্য এবং অন্যটি ওয়েব এন্ডপয়েন্টের জন্য। আমি সার্ভার সাইড ইভেন্ট স্ট্রিমিং (এসএসই) অর্থাৎ পাঠ্য / ইভেন্ট-স্ট্রিম তৈরি করতে চাই, যাতে ক্লায়েন্টের শেষে আমি ইভেন্টসোর্স ব্যবহার করে এটি শুনতে পারি।
আমার জন্য এখনই নিম্নলিখিত কোড রয়েছে, যেখানে প্রতিটি ফাংশন তার নির্দিষ্ট কাজ করে:
import faust
from faust.web import Response
app = faust.App("app1", broker="kafka://localhost:29092", value_serializer="raw")
test_topic = app.topic("test")
@app.agent(test_topic)
async def test_topic_agent(stream):
async for value in stream:
print(f"test_topic_agent RECEIVED -- {value!r}")
yield value
@app.page("/")
async def index(self, request):
return self.text("yey")এখন, আমি সূচীতে চাই, এই কোডটির মতো কিছু, তবে ফলস ব্যবহার করে:
import asyncio
from aiohttp import web
from aiohttp.web import Response
from aiohttp_sse import sse_response
from datetime import datetime
async def hello(request):
loop = request.app.loop
async with sse_response(request) as resp:
while True:
data = 'Server Time : {}'.format(datetime.now())
print(data)
await resp.send(data)
await asyncio.sleep(1, loop=loop)
return resp
async def index(request):
d = """
<html>
<body>
<script>
var evtSource = new EventSource("/hello");
evtSource.onmessage = function(e) {
document.getElementById('response').innerText = e.data
}
</script>
<h1>Response from server:</h1>
<div id="response"></div>
</body>
</html>
"""
return Response(text=d, 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)আমি এটি চেষ্টা করেছি:
import faust
from faust.web import Response
app = faust.App("app1", broker="kafka://localhost:29092", value_serializer="raw")
test_topic = app.topic("test")
# @app.agent(test_topic)
# async def test_topic_agent(stream):
# async for value in stream:
# print(f"test_topic_agent RECEIVED -- {value!r}")
# yield value
@app.page("/", name="t1")
@app.agent(test_topic, name="t")
async def index(self, request):
return self.text("yey")তবে এটি আমাকে নিম্নলিখিত ত্রুটি দেয়:
Traceback (most recent call last):
File "/Users/maverick/.pyenv/versions/3.8.1/envs/faust_demo/lib/python3.8/site-packages/faust/cli/base.py", line 299, in find_app
val = symbol_by_name(app, imp=imp)
File "/Users/maverick/.pyenv/versions/3.8.1/envs/faust_demo/lib/python3.8/site-packages/mode/utils/imports.py", line 262, in symbol_by_name
module = imp( # type: ignore
File "/Users/maverick/.pyenv/versions/3.8.1/envs/faust_demo/lib/python3.8/site-packages/mode/utils/imports.py", line 376, in import_from_cwd
return imp(module, package=package)
File "/Users/maverick/.pyenv/versions/3.8.1/lib/python3.8/importlib/__init__.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 1014, in _gcd_import
File "<frozen importlib._bootstrap>", line 991, in _find_and_load
File "<frozen importlib._bootstrap>", line 975, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 671, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 783, in exec_module
File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
File "/Users/maverick/company/demo1/baiohttp-demo/app1.py", line 18, in <module>
async def index(self, request):
File "/Users/maverick/.pyenv/versions/3.8.1/envs/faust_demo/lib/python3.8/site-packages/faust/app/base.py", line 1231, in _decorator
view = view_base.from_handler(cast(ViewHandlerFun, fun))
File "/Users/maverick/.pyenv/versions/3.8.1/envs/faust_demo/lib/python3.8/site-packages/faust/web/views.py", line 50, in from_handler
return type(fun.__name__, (cls,), {
AttributeError: 'Agent' object has no attribute '__name__'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/Users/maverick/.pyenv/versions/faust_demo/bin/faust", line 8, in <module>
sys.exit(cli())
File "/Users/maverick/.pyenv/versions/3.8.1/envs/faust_demo/lib/python3.8/site-packages/click/core.py", line 829, in __call__
return self.main(*args, **kwargs)
File "/Users/maverick/.pyenv/versions/3.8.1/envs/faust_demo/lib/python3.8/site-packages/click/core.py", line 781, in main
with self.make_context(prog_name, args, **extra) as ctx:
File "/Users/maverick/.pyenv/versions/3.8.1/envs/faust_demo/lib/python3.8/site-packages/faust/cli/base.py", line 407, in make_context
self._maybe_import_app()
File "/Users/maverick/.pyenv/versions/3.8.1/envs/faust_demo/lib/python3.8/site-packages/faust/cli/base.py", line 372, in _maybe_import_app
find_app(appstr)
File "/Users/maverick/.pyenv/versions/3.8.1/envs/faust_demo/lib/python3.8/site-packages/faust/cli/base.py", line 303, in find_app
val = imp(app)
File "/Users/maverick/.pyenv/versions/3.8.1/envs/faust_demo/lib/python3.8/site-packages/mode/utils/imports.py", line 376, in import_from_cwd
return imp(module, package=package)
File "/Users/maverick/.pyenv/versions/3.8.1/lib/python3.8/importlib/__init__.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 1014, in _gcd_import
File "<frozen importlib._bootstrap>", line 991, in _find_and_load
File "<frozen importlib._bootstrap>", line 975, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 671, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 783, in exec_module
File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
File "/Users/maverick/company/demo1/baiohttp-demo/app1.py", line 18, in <module>
async def index(self, request):
File "/Users/maverick/.pyenv/versions/3.8.1/envs/faust_demo/lib/python3.8/site-packages/faust/app/base.py", line 1231, in _decorator
view = view_base.from_handler(cast(ViewHandlerFun, fun))
File "/Users/maverick/.pyenv/versions/3.8.1/envs/faust_demo/lib/python3.8/site-packages/faust/web/views.py", line 50, in from_handler
return type(fun.__name__, (cls,), {
AttributeError: 'Agent' object has no attribute '__name__'আমি ইভেন্টটি চেষ্টা করেছিলাম:
import faust
from faust.web import Response
app = faust.App("app1", broker="kafka://localhost:29092", value_serializer="raw")
test_topic = app.topic("test")
# @app.agent(test_topic)
# async def test_topic_agent(stream):
# async for value in stream:
# print(f"test_topic_agent RECEIVED -- {value!r}")
# yield value
@app.agent(test_topic, name="t")
@app.page("/", name="t1")
async def index(self, request):
return self.text("yey")তবে আমি নিম্নলিখিত ত্রুটি পেয়েছি:
[2020-03-28 10:32:50,676] [29976] [INFO] [^--Producer]: Creating topic 'app1-__assignor-__leader'
[2020-03-28 10:32:50,695] [29976] [INFO] [^--ReplyConsumer]: Starting...
[2020-03-28 10:32:50,695] [29976] [INFO] [^--AgentManager]: Starting...
[2020-03-28 10:32:50,695] [29976] [INFO] [^---Agent: app1.index]: Starting...
[2020-03-28 10:32:50,696] [29976] [ERROR] [^Worker]: Error: TypeError("__init__() missing 1 required positional argument: 'web'")
Traceback (most recent call last):
File "/Users/maverick/.pyenv/versions/3.8.1/envs/faust_demo/lib/python3.8/site-packages/mode/worker.py", line 273, in execute_from_commandline
self.loop.run_until_complete(self._starting_fut)
File "/Users/maverick/.pyenv/versions/3.8.1/lib/python3.8/asyncio/base_events.py", line 612, in run_until_complete
return future.result()
File "/Users/maverick/.pyenv/versions/3.8.1/envs/faust_demo/lib/python3.8/site-packages/mode/services.py", line 736, in start
await self._default_start()
File "/Users/maverick/.pyenv/versions/3.8.1/envs/faust_demo/lib/python3.8/site-packages/mode/services.py", line 743, in _default_start
await self._actually_start()
File "/Users/maverick/.pyenv/versions/3.8.1/envs/faust_demo/lib/python3.8/site-packages/mode/services.py", line 767, in _actually_start
await child.maybe_start()
File "/Users/maverick/.pyenv/versions/3.8.1/envs/faust_demo/lib/python3.8/site-packages/mode/services.py", line 795, in maybe_start
await self.start()
File "/Users/maverick/.pyenv/versions/3.8.1/envs/faust_demo/lib/python3.8/site-packages/mode/services.py", line 736, in start
await self._default_start()
File "/Users/maverick/.pyenv/versions/3.8.1/envs/faust_demo/lib/python3.8/site-packages/mode/services.py", line 743, in _default_start
await self._actually_start()
File "/Users/maverick/.pyenv/versions/3.8.1/envs/faust_demo/lib/python3.8/site-packages/mode/services.py", line 767, in _actually_start
await child.maybe_start()
File "/Users/maverick/.pyenv/versions/3.8.1/envs/faust_demo/lib/python3.8/site-packages/mode/services.py", line 795, in maybe_start
await self.start()
File "/Users/maverick/.pyenv/versions/3.8.1/envs/faust_demo/lib/python3.8/site-packages/mode/services.py", line 736, in start
await self._default_start()
File "/Users/maverick/.pyenv/versions/3.8.1/envs/faust_demo/lib/python3.8/site-packages/mode/services.py", line 743, in _default_start
await self._actually_start()
File "/Users/maverick/.pyenv/versions/3.8.1/envs/faust_demo/lib/python3.8/site-packages/mode/services.py", line 760, in _actually_start
await self.on_start()
File "/Users/maverick/.pyenv/versions/3.8.1/envs/faust_demo/lib/python3.8/site-packages/faust/agents/manager.py", line 58, in on_start
await agent.maybe_start()
File "/Users/maverick/.pyenv/versions/3.8.1/envs/faust_demo/lib/python3.8/site-packages/mode/services.py", line 795, in maybe_start
await self.start()
File "/Users/maverick/.pyenv/versions/3.8.1/envs/faust_demo/lib/python3.8/site-packages/mode/services.py", line 736, in start
await self._default_start()
File "/Users/maverick/.pyenv/versions/3.8.1/envs/faust_demo/lib/python3.8/site-packages/mode/services.py", line 743, in _default_start
await self._actually_start()
File "/Users/maverick/.pyenv/versions/3.8.1/envs/faust_demo/lib/python3.8/site-packages/mode/services.py", line 760, in _actually_start
await self.on_start()
File "/Users/maverick/.pyenv/versions/3.8.1/envs/faust_demo/lib/python3.8/site-packages/faust/agents/agent.py", line 282, in on_start
await self._on_start_supervisor()
File "/Users/maverick/.pyenv/versions/3.8.1/envs/faust_demo/lib/python3.8/site-packages/faust/agents/agent.py", line 312, in _on_start_supervisor
res = await self._start_one(
File "/Users/maverick/.pyenv/versions/3.8.1/envs/faust_demo/lib/python3.8/site-packages/faust/agents/agent.py", line 251, in _start_one
return await self._start_task(
File "/Users/maverick/.pyenv/versions/3.8.1/envs/faust_demo/lib/python3.8/site-packages/faust/agents/agent.py", line 617, in _start_task
actor = self(
File "/Users/maverick/.pyenv/versions/3.8.1/envs/faust_demo/lib/python3.8/site-packages/faust/agents/agent.py", line 525, in __call__
return self.actor_from_stream(stream,
File "/Users/maverick/.pyenv/versions/3.8.1/envs/faust_demo/lib/python3.8/site-packages/faust/agents/agent.py", line 552, in actor_from_stream
res = self.fun(actual_stream)
TypeError: __init__() missing 1 required positional argument: 'web'
[2020-03-28 10:32:50,703] [29976] [INFO] [^Worker]: Stopping...
[2020-03-28 10:32:50,703] [29976] [INFO] [^-App]: Stopping...
[2020-03-28 10:32:50,703] [29976] [INFO] [^-App]: Flush producer buffer...
[2020-03-28 10:32:50,703] [29976] [INFO] [^--TableManager]: Stopping...এর জন্য কি কোনও উপায় থাকতে পারে? আগাম অনেক ধন্যবাদ!
এআইওএইচটিপি-র সাথে কোনও অভিজ্ঞতা নেই, তবে আমি সকেটআইও চেষ্টা করার পরামর্শ দেব
—
ওয়ানক্রিকেটায়ার
'Agent' object has no attribute '__name__'... আপনি কি সরানোর চেষ্টা করেছেন name="t"?
হ্যাঁ, আমি
—
ম্যাভেরিক
name="t"একই ত্রুটিটি না করে সহায়তা করতে চেষ্টা করেছি । @ ক্রিকেট_007
আপনি কি টার্মিনালে সবেমাত্র ফাউস্ট মুদ্রণ আউট পেতে সক্ষম হয়েছেন? ত্রুটিটির
—
এসএসইর
আমি আপনাকে ডিবাগ করতে সহায়তা করার চেষ্টা করছি। : / 1) আমি সমস্যাটি জানি না 2) দয়া করে প্রমাণ করুন যে আপনি প্রকৃতপক্ষে একটি ন্যূনতম প্রজননযোগ্য উদাহরণ
—
দেখিয়ে বিষয়গুলি
