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85 lines
2.6 KiB
Python
85 lines
2.6 KiB
Python
import logging
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import os
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import docs
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from api_v1 import events
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from api_v1.api import router as v1_router
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from api_v1.settings import settings
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from fastapi import FastAPI, HTTPException, Request
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from fastapi.logger import logger as fastapi_logger
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from starlette.middleware.cors import CORSMiddleware
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logger = logging.getLogger(__name__)
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app = FastAPI(title='GPT4All API', description=docs.desc)
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# CORS Configuration (in-case you want to deploy)
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app.add_middleware(
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CORSMiddleware,
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allow_origins=["*"],
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allow_credentials=True,
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allow_methods=["GET", "POST", "OPTIONS"],
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allow_headers=["*"],
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)
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logger.info('Adding v1 endpoints..')
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# add v1
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app.include_router(v1_router, prefix='/v1')
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app.add_event_handler('startup', events.startup_event_handler(app))
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app.add_exception_handler(HTTPException, events.on_http_error)
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@app.on_event("startup")
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async def startup():
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global model
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if settings.inference_mode == "cpu":
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logger.info(f"Downloading/fetching model: {os.path.join(settings.gpt4all_path, settings.model)}")
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from gpt4all import GPT4All
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model = GPT4All(model_name=settings.model, model_path=settings.gpt4all_path)
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logger.info(f"GPT4All API is ready to infer from {settings.model} on CPU.")
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else:
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# is it possible to do this once the server is up?
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## TODO block until HF inference server is up.
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logger.info(f"GPT4All API is ready to infer from {settings.model} on CPU.")
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@app.on_event("shutdown")
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async def shutdown():
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logger.info("Shutting down API")
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if settings.sentry_dns is not None:
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import sentry_sdk
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def traces_sampler(sampling_context):
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if 'health' in sampling_context['transaction_context']['name']:
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return False
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sentry_sdk.init(
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dsn=settings.sentry_dns, traces_sample_rate=0.1, traces_sampler=traces_sampler, send_default_pii=False
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)
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# This is needed to get logs to show up in the app
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if "gunicorn" in os.environ.get("SERVER_SOFTWARE", ""):
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gunicorn_error_logger = logging.getLogger("gunicorn.error")
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gunicorn_logger = logging.getLogger("gunicorn")
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root_logger = logging.getLogger()
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fastapi_logger.setLevel(gunicorn_logger.level)
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fastapi_logger.handlers = gunicorn_error_logger.handlers
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root_logger.setLevel(gunicorn_logger.level)
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uvicorn_logger = logging.getLogger("uvicorn.access")
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uvicorn_logger.handlers = gunicorn_error_logger.handlers
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else:
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# https://github.com/tiangolo/fastapi/issues/2019
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LOG_FORMAT2 = (
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"[%(asctime)s %(process)d:%(threadName)s] %(name)s - %(levelname)s - %(message)s | %(filename)s:%(lineno)d"
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)
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logging.basicConfig(level=logging.INFO, format=LOG_FORMAT2)
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