81 lines
2.7 KiB
Python
81 lines
2.7 KiB
Python
import datetime
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import json
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import os
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import uuid
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import zoneinfo
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import requests
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import time
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stage = os.getenv("STAGE", 'local')
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if stage == 'local':
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QUEUES_URL = 'http://localhost:1239'
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else:
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QUEUES_URL = 'http://queues:1239'
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class QueuesException(Exception):
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...
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class TasksHandlerMixin:
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def _send_metric(self, start: datetime.datetime, end: datetime.datetime, success: bool):
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with open(f'/usr/src/{uuid.uuid4()}.json', 'w') as fp:
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fp.write(json.dumps({
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'service': 'botalka',
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'queue': self.queue_name,
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'success': success,
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'timestamp': start.strftime("%Y-%m-%dT%H:%M:%S") + "Z",
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"success": success,
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"execution_time_ms": (end - start).microseconds // 1000,
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"environment": stage,
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}))
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def poll(self):
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while True:
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try:
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response = requests.get(f'{QUEUES_URL}/api/v1/take', headers={'queue': self.queue_name}).json()
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except requests.JSONDecodeError:
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print('Unable to decode json')
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time.sleep(3)
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continue
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task = response.get('task')
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if not task:
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time.sleep(0.2)
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continue
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start = datetime.datetime.now(zoneinfo.ZoneInfo("Europe/Moscow"))
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try:
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print(f'process task with id {task["id"]}, attempt {task["attempt"]}')
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self.process(task['payload'])
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success = True
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except Exception as exc:
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print(f'Error processing message id={task["id"]}, payload={task["payload"]}, exc={exc}')
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success = False
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end = datetime.datetime.now(zoneinfo.ZoneInfo("Europe/Moscow"))
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if success:
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try:
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resp = requests.post(f'{QUEUES_URL}/api/v1/finish', json={'id': task['id']})
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if resp.status_code != 202:
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raise QueuesException
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print(f'finish task with id {task["id"]}')
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except:
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print(f'Failed to finish task id={task["id"]}')
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self._send_metric(start, end, success)
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@property
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def queue_name(self):
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raise NotImplemented
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def process(self, payload):
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raise NotImplemented
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def set_task(queue_name: str, payload: dict, seconds_to_execute: int, delay: int|None = None):
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resp = requests.post(f'{QUEUES_URL}/api/v1/put', headers={'queue': queue_name}, json={
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'payload': payload,
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'seconds_to_execute': seconds_to_execute,
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'delay': delay,
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})
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if resp.status_code != 202:
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raise QueuesException
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