init

{{cookiecutter.project_slug}}/app/utils/__init__.py

@@ -0,0 +1,2 @@
+#!/usr/bin/env python3
+# -*- coding:utf-8 -*-

{{cookiecutter.project_slug}}/app/utils/stable.py

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+import asyncio
+import datetime
+from functools import wraps
+
+from loguru import logger
+
+
+def retry_async(max_retries=3, initial_delay=1, exceptions=(Exception,)):
+    def decorator(func):
+        @wraps(func)
+        async def wrapper(*args, **kwargs):
+            attempt = 0
+            delay = initial_delay
+            while attempt < max_retries:
+                try:
+                    return await func(*args, **kwargs)
+                except exceptions as e:
+                    logger.info(
+                        f"{e=}, attempt {attempt + 1}/{max_retries}, will retry in {delay} seconds"
+                    )
+                    logger.exception(f"{e=}")
+                    attempt += 1
+                    if attempt >= max_retries:
+                        logger.info("Max retries reached, aborting")
+                        raise e
+                    await asyncio.sleep(delay)
+                    delay *= 2  # 延迟时间加倍
+
+        return wrapper
+
+    return decorator
+
+
+if __name__ == "__main__":
+
+    @retry_async()
+    async def main():
+        now = datetime.datetime.now()
+        logger.info(f"{now=}")
+        # Fail twice then succeed
+        if main.counter < 2:
+            main.counter += 1
+            raise Exception(now)
+        return now
+
+    main.counter = 0
+
+    asyncio.run(main())