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autogpt_platform/autogpt_libs/autogpt_libs/feature_flag/client.py
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,150 @@ | ||
| import asyncio | ||
| import contextlib | ||
| import logging | ||
| from functools import wraps | ||
| from typing import Any, Callable, Dict, Optional, TypeVar, cast | ||
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| import ldclient | ||
| from fastapi import HTTPException, Request | ||
| from ldclient import Context, LDClient | ||
| from ldclient.config import Config | ||
| from typing_extensions import Concatenate, ParamSpec | ||
| from .config import settings | ||
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| logger = logging.getLogger(__name__) | ||
| logging.basicConfig(level=logging.DEBUG) | ||
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| P = ParamSpec("P") | ||
| T = TypeVar("T") | ||
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| def get_client() -> LDClient: | ||
| """Get the LaunchDarkly client singleton.""" | ||
| return ldclient.get() | ||
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| def initialize_launchdarkly() -> None: | ||
| sdk_key = settings.SDK_KEY | ||
| logger.debug(f"Initializing LaunchDarkly with SDK key: {'present' if sdk_key else 'missing'}") | ||
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| if not sdk_key: | ||
| logger.warning("LaunchDarkly SDK key not configured") | ||
| return | ||
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| config = Config(sdk_key) | ||
| ldclient.set_config(config) | ||
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| if ldclient.get().is_initialized(): | ||
| logger.info("LaunchDarkly client initialized successfully") | ||
| else: | ||
| logger.error("LaunchDarkly client failed to initialize") | ||
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| def shutdown_launchdarkly() -> None: | ||
| """Shutdown the LaunchDarkly client.""" | ||
| if ldclient.get().is_initialized(): | ||
| ldclient.get().close() | ||
| logger.info("LaunchDarkly client closed successfully") | ||
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| def create_context(user_id: str, additional_attributes: Optional[Dict[str, Any]] = None) -> Context: | ||
| """Create LaunchDarkly context with optional additional attributes.""" | ||
| builder = Context.builder(user_id).kind("user") | ||
| if additional_attributes: | ||
| for key, value in additional_attributes.items(): | ||
| builder.set(key, value) | ||
| return builder.build() | ||
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| def feature_flag( | ||
| flag_key: str, | ||
| default: bool = False, | ||
| unauthorized_response: Any = None, | ||
| ): | ||
| """ | ||
| Decorator for feature flag protected endpoints. | ||
| """ | ||
| def decorator( | ||
| func: Callable[P, T] | ||
| ) -> Callable[P, T]: | ||
| @wraps(func) | ||
| async def async_wrapper(*args: P.args, **kwargs: P.kwargs) -> T: | ||
| try: | ||
| # Get user_id from kwargs since FastAPI injects it | ||
| user_id = kwargs.get('user_id') | ||
| logger.debug(f"Checking flag '{flag_key}' for user '{user_id}'") | ||
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| if not get_client().is_initialized(): | ||
| logger.warning(f"LaunchDarkly not initialized, using default={default}") | ||
| is_enabled = default | ||
| else: | ||
| context = create_context(user_id) | ||
| logger.debug(f"Created context for user: {context}") | ||
| is_enabled = get_client().variation(flag_key, context, default) | ||
| logger.debug(f"Flag '{flag_key}' evaluation result: {is_enabled}") | ||
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| if not is_enabled: | ||
| logger.debug(f"Feature '{flag_key}' disabled, returning unauthorized response") | ||
| if unauthorized_response is not None: | ||
| return cast(T, unauthorized_response) | ||
| raise HTTPException(status_code=404, detail="Feature not available") | ||
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| logger.debug(f"Feature '{flag_key}' enabled, executing function") | ||
| return await func(*args, **kwargs) | ||
| except Exception as e: | ||
| logger.error(f"Error evaluating feature flag {flag_key}: {e}", exc_info=True) | ||
| return cast(T, unauthorized_response) if unauthorized_response else None | ||
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| @wraps(func) | ||
| def sync_wrapper(*args: P.args, **kwargs: P.kwargs) -> T: | ||
| try: | ||
| user_id = kwargs.get('user_id') | ||
| if not get_client().is_initialized(): | ||
| logger.warning(f"LaunchDarkly not initialized, using default={default}") | ||
| is_enabled = default | ||
| else: | ||
| context = create_context(user_id) | ||
| is_enabled = get_client().variation(flag_key, context, default) | ||
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| if not is_enabled: | ||
| if unauthorized_response is not None: | ||
| return cast(T, unauthorized_response) | ||
| raise HTTPException(status_code=404, detail="Feature not available") | ||
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| return func(*args, **kwargs) | ||
| except Exception as e: | ||
| logger.error(f"Error evaluating feature flag {flag_key}: {e}") | ||
| return cast(T, unauthorized_response) if unauthorized_response else None | ||
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| return async_wrapper if asyncio.iscoroutinefunction(func) else sync_wrapper | ||
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| return decorator | ||
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| @contextlib.contextmanager | ||
| def mock_flag_variation(flag_key: str, return_value: Any): | ||
| """Context manager for testing feature flags.""" | ||
| original_variation = get_client().variation | ||
| get_client().variation = lambda key, context, default: return_value if key == flag_key else original_variation(key, | ||
| context, | ||
| default) | ||
| try: | ||
| yield | ||
| finally: | ||
| get_client().variation = original_variation | ||
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| def percentage_rollout( | ||
| flag_key: str, | ||
| default: bool = False, | ||
| unauthorized_response: Any = None, | ||
| ) -> Callable[[Callable[P, T]], Callable[P, T]]: | ||
| """Decorator for percentage-based rollouts.""" | ||
| return feature_flag(flag_key, default, unauthorized_response) | ||
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| def beta_feature( | ||
| flag_key: str | None = None, | ||
| unauthorized_response: Any = {"message": "Not available in beta"} | ||
| ) -> Callable[[Callable[P, T]], Callable[P, T]]: | ||
| """Decorator for beta features.""" | ||
| actual_key = f"beta-{flag_key}" if flag_key else "beta" | ||
| return feature_flag(actual_key, False, unauthorized_response) |
12 changes: 12 additions & 0 deletions
12
autogpt_platform/autogpt_libs/autogpt_libs/feature_flag/config.py
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,12 @@ | ||
| import os | ||
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| from dotenv import load_dotenv | ||
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| load_dotenv() | ||
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| class Settings: | ||
| SDK_KEY: str = os.getenv("LAUNCH_DARKLY_SDK_KEY", "") | ||
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| settings = Settings() |
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