import json
from typing import Annotated

from fastapi import Cookie, FastAPI, Form, Header, Query
from fastapi.testclient import TestClient
from pydantic import Json

app = FastAPI()


@app.post("/form-json-list")
def form_json_list(items: Annotated[Json[list[str]], Form()]) -> list[str]:
    return items


@app.get("/query-json-list")
def query_json_list(items: Annotated[Json[list[str]], Query()]) -> list[str]:
    return items

import pytest
from fastapi import Depends, FastAPI, Security
from fastapi.security import OAuth2, OAuth2PasswordRequestFormStrict
from fastapi.testclient import TestClient
from inline_snapshot import snapshot
from pydantic import BaseModel

app = FastAPI()

reusable_oauth2 = OAuth2(
    flows={
        "password": {
            "tokenUrl": "token",
            "scopes": {"read:users": "Read the users", "write:users": "Create users"},
        }

from fastapi import APIRouter, FastAPI
from fastapi.testclient import TestClient
from inline_snapshot import snapshot
from pydantic import BaseModel, HttpUrl

app = FastAPI()


class Invoice(BaseModel):
    id: str
    title: str | None = None
    customer: str
    total: float


class InvoiceEvent(BaseModel):
    description: str
    paid: bool


class InvoiceEventReceived(BaseModel):
    ok: bool

    @Weak @Nullable OutSpliteratorT prefix;
    final Spliterator<InElementT> from;
    final Function<? super InElementT, @Nullable OutSpliteratorT> function;
    final Factory<InElementT, OutSpliteratorT> factory;
    int characteristics;
    long estimatedSize;

    FlatMapSpliterator(
        @Nullable OutSpliteratorT prefix,
        Spliterator<InElementT> from,
        Function<? super InElementT, @Nullable OutSpliteratorT> function,

/// info

Added in FastAPI 0.135.0.

///

## What are Server-Sent Events? { #what-are-server-sent-events }

SSE is a standard for streaming data from the server to the client over HTTP.

Each event is a small text block with "fields" like `data`, `event`, `id`, and `retry`, separated by blank lines.

It looks like this:

```

individual, or aggression toward or disparagement of classes of individuals.

**Consequence**: A permanent ban from any sort of public interaction within
the community.

## Attribution

This Code of Conduct is adapted from the [Contributor Covenant][homepage],
version 2.0, available at
https://www.contributor-covenant.org/version/2/0/code_of_conduct.html.

from base64 import b64encode

from fastapi import FastAPI, Security
from fastapi.security import HTTPBasic, HTTPBasicCredentials
from fastapi.testclient import TestClient
from inline_snapshot import snapshot

app = FastAPI()

security = HTTPBasic(realm="simple", description="HTTPBasic scheme")


@app.get("/users/me")
def read_current_user(credentials: HTTPBasicCredentials = Security(security)):

     *
     * @return the logger instance
     */
    Logger getLogger();

    /**
     * Extracts the host name from a URL string.
     * Removes protocol and path components to return just the hostname.
     *
     * @param u the URL string to extract host from
     * @return the host name, or empty string if URL is blank, or unknown hostname if parsing fails
     */
    default String getHost(final String u) {

/// tip

FastAPI automatically generates **OpenAPI 3.1** specifications, so any tool you use must support this version.

///

## SDK Generators from FastAPI Sponsors { #sdk-generators-from-fastapi-sponsors }

This section highlights **venture-backed** and **company-supported** solutions from companies that sponsor FastAPI. These products provide **additional features** and **integrations** on top of high-quality generated SDKs.

from fastapi import Depends, FastAPI, HTTPException, status
from fastapi.security import OAuth2PasswordBearer, OAuth2PasswordRequestForm
from pydantic import BaseModel

fake_users_db = {
    "johndoe": {
        "username": "johndoe",
        "full_name": "John Doe",
        "email": "******@****.***",
        "hashed_password": "fakehashedsecret",
        "disabled": False,
    },
    "alice": {
        "username": "alice",