* **Hızlı**: Çok yüksek performanslı, **NodeJS** ve **Go** ile eşit düzeyde (Starlette ve Pydantic sayesinde). [Mevcut en hızlı Python framework'lerinden biri](#performance).
* **Kodlaması Hızlı**: Özellik geliştirme hızını yaklaşık %200 ile %300 aralığında artırır. *
* **Daha az hata**: İnsan (geliştirici) kaynaklı hataları yaklaşık %40 azaltır. *

import json
import sys
from collections.abc import Iterator
from typing import Annotated, Any

import pytest
from fastapi import Depends, FastAPI
from fastapi.testclient import TestClient
from pydantic import BaseModel

if "--codspeed" not in sys.argv:
    pytest.skip(
        "Benchmark tests are skipped by default; run with --codspeed.",
        allow_module_level=True,
    )

LARGE_ITEMS: list[dict[str, Any]] = [
    {

这类似于：

```Python
if not (credentials.username == "stanleyjobson") or not (credentials.password == "swordfish"):
    # Return some error
    ...
```

但使用 `secrets.compare_digest()`，可以防御**时差攻击**，更加安全。

### 时差攻击 { #timing-attacks }

什么是**时差攻击**？

假设攻击者试图猜出用户名与密码。

他们发送用户名为 `johndoe`，密码为 `love123` 的请求。

然后，Python 代码执行如下操作：

```Python
if "johndoe" == "stanleyjobson" and "love123" == "swordfish":
    ...
```

import logging
import secrets
import subprocess
from collections import Counter
from datetime import datetime
from pathlib import Path
from typing import Any

import httpx
import yaml
from github import Github
from pydantic import BaseModel, SecretStr
from pydantic_settings import BaseSettings

github_graphql_url = "https://api.github.com/graphql"


prs_query = """
query Q($after: String) {

from typing import Annotated

import pytest
from fastapi import FastAPI, Form
from fastapi.testclient import TestClient
from pydantic import BaseModel, Field

from .utils import get_body_model_name

app = FastAPI()

# =====================================================================================
# Without aliases


@app.post("/optional-str", operation_id="optional_str")

from dataclasses import dataclass
from datetime import datetime, timezone
from decimal import Decimal
from enum import Enum
from math import isinf, isnan
from pathlib import PurePath, PurePosixPath, PureWindowsPath
from typing import TypedDict

import pytest
from fastapi._compat import Undefined
from fastapi.encoders import jsonable_encoder
from fastapi.exceptions import PydanticV1NotSupportedError

from typing import Annotated

import pytest
from dirty_equals import IsOneOf
from fastapi import FastAPI, Query
from fastapi.testclient import TestClient
from inline_snapshot import snapshot
from pydantic import BaseModel, Field

app = FastAPI()

# =====================================================================================
# Without aliases


@app.get("/required-str")
async def read_required_str(p: str):

     */
    boolean readOnly() default false;

    /**
     * Property source, which determines when and where the property will be read from or set for consumption.
     * The source indicates the timing of property evaluation in the Maven build lifecycle and the location
     * where the property value is defined.
     */
    enum Source {
        /**

from collections.abc import AsyncGenerator, Generator
from functools import partial
from typing import Annotated

import pytest
from fastapi import Depends, FastAPI
from fastapi.testclient import TestClient

app = FastAPI()


def function_dependency(value: str) -> str:
    return value


async def async_function_dependency(value: str) -> str:
    return value


def gen_dependency(value: str) -> Generator[str, None, None]:

OpenAPI şeması, dahil edilen iki etkileşimli dokümantasyon sistemine güç veren şeydir.

Ve OpenAPI tabanlı düzinelerce alternatif vardır. **FastAPI** ile oluşturulmuş uygulamanıza bu alternatiflerden herhangi birini kolayca ekleyebilirsiniz.

Ayrıca, API'nızla iletişim kuran istemciler için otomatik olarak kod üretmekte de kullanabilirsiniz. Örneğin frontend, mobil veya IoT uygulamaları.