FastAPI 是否支持具有嵌套结构（如 yaml）的配置文件？

Question

Python框架FastAPI支持.env样式的配置文件。它可以使用更结构化的配置格式，例如 .yaml 到 ini/toml 吗？

Answer 1

虽然它不是在框架中本地实现的，但您可以执行如下操作：

YAML

import os
from pydantic import BaseSettings
import yaml

yaml_settings = dict()

here = os.path.abspath(os.path.dirname(__file__))
with open(os.path.join(here, "settings.yaml")) as f:
    yaml_settings.update(yaml.load(f, Loader=yaml.FullLoader))

class Settings(BaseSettings):
    setting_1: str = yaml_settings['setting_1']
    setting_2: str = yaml_settings['setting_2']

INI

import configparser
import os
from pydantic import BaseSettings

here = os.path.abspath(os.path.dirname(__file__))

config = configparser.ConfigParser()
config.read(os.path.join(here, "settings.ini"))

class Settings(BaseSettings):
   setting_1: str = config['dev']['setting_1']
   setting_2: str = config['dev']['setting_2']

TOML

import toml
import os
from pydantic import BaseSettings

here = os.path.abspath(os.path.dirname(__file__))
toml_settings = toml.load(os.path.join(here, "settings.toml"))

class Settings(BaseSettings):
   setting_1: str = toml_settings['dev']['setting_1']
   setting_2: str = toml_settings['dev']['setting_2']

然后你可以将Settings()你的路由作为依赖项传递。