FastAPI 是否支持带有 yaml 等嵌套结构的配置文件？答案

【问题标题】：Does FastAPI support config files with nested structures like yaml?FastAPI 是否支持带有 yaml 等嵌套结构的配置文件？
【发布时间】：2021-02-15 07:55:17
【问题描述】：

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

【问题讨论】：

标签： python fastapi pyyaml

【解决方案1】：

虽然它没有在框架中本地实现，但您可以执行以下操作：

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']

然后你可以在你的路由中传递Settings() 作为依赖。

【讨论】：