When I run my FastAPI server using uvicorn:
uvicorn main:app --host 0.0.0.0 --port 8000 --log-level info
The log I get after running the server:
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
How do I get the time stamp along with the request logging? Like:
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
You can use Uvicorn's 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()
Which will return uvicorn log with the timestamp
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)
You can create a dict logger config and initialize the same using dictConfig function in your main application.
#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
},
},
}
Combined the answers of @Yagiz Degirmenci and @HappyFace, I got this code.
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'
The log likes this:
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