* 100% test coverage.
* 100% type annotated codebase.

## Tính năng của Pydantic

**FastAPI** tương thích đầy đủ với (và dựa trên) <a href="https://docs.pydantic.dev/" class="external-link" target="_blank"><strong>Pydantic</strong></a>. Do đó, bất kì code Pydantic nào bạn thêm vào cũng sẽ hoạt động.

* Base de código 100% anotada con tipos.

## Características de Pydantic

**FastAPI** está basado y es completamente compatible con <a href="https://docs.pydantic.dev/" class="external-link" target="_blank"><strong>Pydantic</strong></a>. Tanto así, que cualquier código de Pydantic que tengas también funcionará.

## Pydantic `Settings`

Fortunately, Pydantic provides a great utility to handle these settings coming from environment variables with <a href="https://docs.pydantic.dev/latest/usage/pydantic_settings/" class="external-link" target="_blank">Pydantic: Settings management</a>.

### Install `pydantic-settings`

First, install the `pydantic-settings` package:

<div class="termy">

from dirty_equals import IsDict
from fastapi import Body, Cookie, FastAPI, Header, Path, Query
from fastapi._compat import PYDANTIC_V2
from fastapi.testclient import TestClient
from pydantic import BaseModel, ConfigDict


def create_app():
    app = FastAPI()

    class Item(BaseModel):
        data: str

        if PYDANTIC_V2:
            model_config = ConfigDict(

* テストカバレッジ100%
* 型アノテーション100%のコードベース

## Pydanticの特徴

**FastAPI**は<a href="https://docs.pydantic.dev/" class="external-link" target="_blank"><strong>Pydantic </strong></a>と完全に互換性があります（そしてベースになっています）。したがって、追加のPydanticコードがあれば、それも機能します。

データベースのために<abbr title = "Object-Relational Mapper">ORM</abbr>sや、<abbr title = "Object-Document Mapper">ODM</abbr>sなどの、Pydanticに基づく外部ライブラリを備えています。

## ✍ Pydantic 🏷

🔜 ➡️ ✅ 📁 `sql_app/schemas.py`.

!!! tip
    ❎ 😨 🖖 🇸🇲 *🏷* & Pydantic *🏷*, 👥 🔜 ✔️ 📁 `models.py` ⏮️ 🇸🇲 🏷, & 📁 `schemas.py` ⏮️ Pydantic 🏷.

    👫 Pydantic 🏷 🔬 🌅 ⚖️ 🌘 "🔗" (☑ 📊 💠).

    👉 🔜 ℹ 👥 ❎ 😨 ⏪ ⚙️ 👯‍♂️.

### ✍ ▶️ Pydantic *🏷* / 🔗

✍ `ItemBase` & `UserBase` Pydantic *🏷* (⚖️ ➡️ 💬 "🔗") ✔️ ⚠ 🔢 ⏪ 🏗 ⚖️ 👂 📊.

import warnings
from enum import Enum
from typing import Any, Callable, Dict, List, Optional, Sequence, Union

from fastapi.openapi.models import Example
from pydantic.fields import FieldInfo
from typing_extensions import Annotated, deprecated

from ._compat import PYDANTIC_V2, PYDANTIC_VERSION, Undefined

_Unset: Any = Undefined


class ParamTypes(Enum):
    query = "query"
    header = "header"
    path = "path"

import fastapi
from fastapi._compat import (
    PYDANTIC_V2,
    BaseConfig,
    ModelField,
    PydanticSchemaGenerationError,
    Undefined,
    UndefinedType,
    Validator,
    lenient_issubclass,
)
from fastapi.datastructures import DefaultPlaceholder, DefaultType
from pydantic import BaseModel, create_model
from pydantic.fields import FieldInfo
from typing_extensions import Literal

!!! tip "팁"
    만약 <a href="https://www.jetbrains.com/pycharm/" class="external-link" target="_blank">PyCharm</a>를 편집기로 사용한다면, <a href="https://github.com/koxudaxi/pydantic-pycharm-plugin/" class="external-link" target="_blank">Pydantic PyCharm Plugin</a>을 사용할 수 있습니다.

    다음 사항을 포함해 Pydantic 모델에 대한 편집기 지원을 향상시킵니다:

    * 자동 완성
    * 타입 확인
    * 리팩토링
    * 검색
    * 점검

## 모델 사용하기

함수 안에서 모델 객체의 모든 어트리뷰트에 직접 접근 가능합니다:

from uuid import UUID

from fastapi.types import IncEx
from pydantic import BaseModel
from pydantic.color import Color
from pydantic.networks import AnyUrl, NameEmail
from pydantic.types import SecretBytes, SecretStr
from typing_extensions import Annotated, Doc

from ._compat import PYDANTIC_V2, UndefinedType, Url, _model_dump


# Taken from Pydantic v1 as is
def isoformat(o: Union[datetime.date, datetime.time]) -> str: