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https://github.com/Alishahryar1/free-claude-code.git
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127 lines
5.2 KiB
Python
127 lines
5.2 KiB
Python
"""Dependency injection for FastAPI."""
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from fastapi import HTTPException
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from loguru import logger
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from config.settings import Settings
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from config.settings import get_settings as _get_settings
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from providers.base import BaseProvider, ProviderConfig
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from providers.common import get_user_facing_error_message
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from providers.exceptions import AuthenticationError
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from providers.llamacpp import LlamaCppProvider
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from providers.lmstudio import LMStudioProvider
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from providers.nvidia_nim import NVIDIA_NIM_BASE_URL, NvidiaNimProvider
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from providers.open_router import OPENROUTER_BASE_URL, OpenRouterProvider
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# Provider registry: keyed by provider type string, lazily populated
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_providers: dict[str, BaseProvider] = {}
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def get_settings() -> Settings:
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"""Get application settings via dependency injection."""
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return _get_settings()
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def _create_provider_for_type(provider_type: str, settings: Settings) -> BaseProvider:
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"""Construct and return a new provider instance for the given provider type."""
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if provider_type == "nvidia_nim":
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if not settings.nvidia_nim_api_key or not settings.nvidia_nim_api_key.strip():
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raise AuthenticationError(
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"NVIDIA_NIM_API_KEY is not set. Add it to your .env file. "
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"Get a key at https://build.nvidia.com/settings/api-keys"
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)
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config = ProviderConfig(
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api_key=settings.nvidia_nim_api_key,
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base_url=NVIDIA_NIM_BASE_URL,
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rate_limit=settings.provider_rate_limit,
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rate_window=settings.provider_rate_window,
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max_concurrency=settings.provider_max_concurrency,
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http_read_timeout=settings.http_read_timeout,
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http_write_timeout=settings.http_write_timeout,
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http_connect_timeout=settings.http_connect_timeout,
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)
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return NvidiaNimProvider(config, nim_settings=settings.nim)
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if provider_type == "open_router":
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if not settings.open_router_api_key or not settings.open_router_api_key.strip():
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raise AuthenticationError(
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"OPENROUTER_API_KEY is not set. Add it to your .env file. "
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"Get a key at https://openrouter.ai/keys"
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)
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config = ProviderConfig(
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api_key=settings.open_router_api_key,
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base_url=OPENROUTER_BASE_URL,
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rate_limit=settings.provider_rate_limit,
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rate_window=settings.provider_rate_window,
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max_concurrency=settings.provider_max_concurrency,
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http_read_timeout=settings.http_read_timeout,
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http_write_timeout=settings.http_write_timeout,
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http_connect_timeout=settings.http_connect_timeout,
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)
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return OpenRouterProvider(config)
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if provider_type == "lmstudio":
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config = ProviderConfig(
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api_key="lm-studio",
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base_url=settings.lm_studio_base_url,
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rate_limit=settings.provider_rate_limit,
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rate_window=settings.provider_rate_window,
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max_concurrency=settings.provider_max_concurrency,
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http_read_timeout=settings.http_read_timeout,
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http_write_timeout=settings.http_write_timeout,
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http_connect_timeout=settings.http_connect_timeout,
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)
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return LMStudioProvider(config)
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if provider_type == "llamacpp":
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config = ProviderConfig(
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api_key="llamacpp",
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base_url=settings.llamacpp_base_url,
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rate_limit=settings.provider_rate_limit,
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rate_window=settings.provider_rate_window,
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max_concurrency=settings.provider_max_concurrency,
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http_read_timeout=settings.http_read_timeout,
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http_write_timeout=settings.http_write_timeout,
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http_connect_timeout=settings.http_connect_timeout,
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)
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return LlamaCppProvider(config)
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logger.error(
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"Unknown provider_type: '{}'. Supported: 'nvidia_nim', 'open_router', 'lmstudio', 'llamacpp'",
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provider_type,
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)
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raise ValueError(
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f"Unknown provider_type: '{provider_type}'. "
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f"Supported: 'nvidia_nim', 'open_router', 'lmstudio', 'llamacpp'"
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)
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def get_provider_for_type(provider_type: str) -> BaseProvider:
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"""Get or create a provider for the given provider type.
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Providers are cached in the registry and reused across requests.
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"""
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if provider_type not in _providers:
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try:
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_providers[provider_type] = _create_provider_for_type(
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provider_type, get_settings()
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)
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except AuthenticationError as e:
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raise HTTPException(
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status_code=503, detail=get_user_facing_error_message(e)
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) from e
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logger.info("Provider initialized: {}", provider_type)
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return _providers[provider_type]
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def get_provider() -> BaseProvider:
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"""Get or create the default provider (based on MODEL env var).
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Backward-compatible convenience for health/root endpoints and tests.
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"""
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return get_provider_for_type(get_settings().provider_type)
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async def cleanup_provider():
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"""Cleanup all provider resources."""
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global _providers
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for provider in _providers.values():
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await provider.cleanup()
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_providers = {}
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logger.debug("Provider cleanup completed")
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