如何在 uvicorn 日志中為每個請求添加時間戳？

Question

當我使用 uvicorn 運行我的 FastAPI 服務器時：

uvicorn main:app --host 0.0.0.0 --port 8000 --log-level info

運行服務器后我得到的日志：

INFO:     Started server process [405098]
INFO:     Waiting for application startup.
INFO:     Connect to database...
INFO:     Successfully connected to the database!
INFO:     Application startup complete.
INFO:     Uvicorn running on http://0.0.0.0:8000 (Press CTRL+C to quit)
INFO:     122.179.31.158:54604 - "GET /api/hello_world?num1=5&num2=10 HTTP/1.1" 200 OK

如何獲取時間戳以及請求記錄？ 喜歡：

INFO:     "2020-07-16:23:34:78" - 122.179.31.158:54604 - "GET /api/hello_world?num1=5&num2=10 HTTP/1.1" 200 OK

Answer 1

您可以在主應用程序中創建一個dict 記錄器配置並使用dictConfig function 對其進行初始化。

#main.py

from logging.config import dictConfig from config import log_config

from fastapi import FastAPI

dictConfig(log_config.sample_logger)

app = FastAPI()


@app.get("/")
async def root():
    return {"message": "Hello World"}

#config/log_config.py

sample_logger = {
    "version": 1,
    "disable_existing_loggers": False,
    "formatters": {
        "access": {
            "()": "uvicorn.logging.AccessFormatter",
            "fmt": '%(levelprefix)s %(asctime)s :: %(client_addr)s - "%(request_line)s" %(status_code)s',
            "use_colors": True
        },
    },
    "handlers": {
        "access": {
            "formatter": "access",
            "class": "logging.StreamHandler",
            "stream": "ext://sys.stdout",
        },
    },
    "loggers": {
        "uvicorn.access": {
            "handlers": ["access"],
            "level": "INFO",
            "propagate": False
        },
    },
}

Answer 2

你可以使用 Uvicorn 的LOGGING_CONFIG

import uvicorn
from uvicorn.config import LOGGING_CONFIG
from fastapi import FastAPI

app = FastAPI()

def run():
    LOGGING_CONFIG["formatters"]["default"]["fmt"] = "%(asctime)s [%(name)s] %(levelprefix)s %(message)s"
    uvicorn.run(app)

if __name__ == '__main__':
    run()

這將返回帶有時間戳的 uvicorn 日志

2020-08-20 02:33:53,765 [uvicorn.error] INFO:     Started server process [107131]
2020-08-20 02:33:53,765 [uvicorn.error] INFO:     Waiting for application startup.
2020-08-20 02:33:53,765 [uvicorn.error] INFO:     Application startup complete.
2020-08-20 02:33:53,767 [uvicorn.error] INFO:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)

Answer 3

能夠通過不使用 uvicorn 命令從終端運行服務器來實現相同的目的。 但是通過使用運行 uvicorn package 的 function 運行服務器。

在瀏覽 web 以獲得解決方案時，我最終解決了這個問題， Dylan Anthony使用運行 function of uvicorn ZEFE90A8E604A7C840E88D03A67ZF6 編寫了解決方案。

雖然，知道如何使用 uvicorn 命令實現同樣的效果仍然很好。

Answer 4

結合@Yagiz Degirmenci 和@HappyFace 的答案，我得到了這段代碼。

LOGGING_CONFIG["formatters"]["default"]["fmt"] = "%(asctime)s [%(name)s] %(levelprefix)s %(message)s"
LOGGING_CONFIG["formatters"]["access"][
    "fmt"] = '%(asctime)s [%(name)s] %(levelprefix)s %(client_addr)s - "%(request_line)s" %(status_code)s'

日志是這樣的：

2021-03-31 18:38:22,728 [uvicorn.error] INFO:     Started server process [21824]
2021-03-31 18:38:22,729 [uvicorn.error] INFO:     Waiting for application startup.
2021-03-31 18:38:22,729 [uvicorn.error] INFO:     Application startup complete.
2021-03-31 18:38:22,729 [uvicorn.error] INFO:     Uvicorn running on http://0.0.0.0:8000 (Press CTRL+C to quit)
2021-03-31 18:38:26,359 [uvicorn.access] INFO:     127.0.0.1:51932 - "POST /limit HTTP/1.1" 200 OK