{* ../../docs_src/behind_a_proxy/tutorial002_py310.py hl[3] *}

`FastAPI` に `root_path` を渡すのは、Uvicorn や Hypercorn にコマンドラインオプション `--root-path` を渡すのと同等です。

### `root_path` について { #about-root-path }

サーバー（Uvicorn）は、その `root_path` をアプリに渡す以外の用途では使用しない点に注意してください。

しかし、ブラウザで [http://127.0.0.1:8000/app](http://127.0.0.1:8000/app) にアクセスすると、通常どおりのレスポンスが表示されます:

```JSON
{

     * zero bytes (3 ints), while the byteTable is for advancing one byte at a time.
     * This algorithm is due to the paper "Everything we know about CRC but [are] afraid to forget"
     * by Kadatch and Jenkins, 2010.
     */

    Crc32cHasher() {
      super(16);
    }

    private boolean finished = false;

    /*

# -*- mode: ruby -*-
# vim: ft=ruby ts=2 sw=2 sts=2 et:

# This Vagrantfile exists to test packaging. Read more about its use in the
# vagrant section in TESTING.asciidoc.

# Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
# or more contributor license agreements. Licensed under the Elastic License
# 2.0 and the Server Side Public License, v 1; you may not use this file except

import com.google.common.annotations.GwtCompatible;
import com.google.common.base.MoreObjects;
import java.util.Objects;
import java.util.concurrent.Callable;
import org.jspecify.annotations.Nullable;

/**
 * Statistics about the performance of a {@link Cache}. Instances of this class are immutable.
 *
 * <p>Cache statistics are incremented according to the following rules:
 *
 * <ul>

import com.google.common.annotations.GwtCompatible;
import com.google.common.base.MoreObjects;
import java.util.Objects;
import java.util.concurrent.Callable;
import org.jspecify.annotations.Nullable;

/**
 * Statistics about the performance of a {@link Cache}. Instances of this class are immutable.
 *
 * <p>Cache statistics are incremented according to the following rules:
 *
 * <ul>

              // it's unnecessary to waste cycles looking at them. This check is built on the
              // observation that the header entries we care about are in adjacent pairs, and we
              // always know the first index of the pair.
              if (STATIC_HEADER_TABLE[headerNameIndex - 1].value == value) {
                headerIndex = headerNameIndex

            totalentries = _src.dec_ndr_long();
            resume_handle = _src.dec_ndr_long();
            retval = _src.dec_ndr_long();
        }
    }

    /**
     * RPC message for getting information about a specific share.
     */
    public static class ShareGetInfo extends DcerpcMessage {

        @Override
        public int getOpnum() {
            return 0x10;
        }

        /**

有很多其他物件和模型會自動轉換為 JSON（包括 ORMs，等等）。試用你最喜歡的，很有可能它們已經有支援。

### 第六步：部署 { #step-6-deploy-it }

用一行指令將你的應用程式部署到 **[FastAPI Cloud](https://fastapicloud.com)**：`fastapi deploy`。🎉

#### 關於 FastAPI Cloud { #about-fastapi-cloud }

**[FastAPI Cloud](https://fastapicloud.com)** 由 **FastAPI** 的作者與團隊打造。

它讓你以最小的成本完成 API 的**建置**、**部署**與**存取**流程。

它把用 FastAPI 開發應用的同樣**開發者體驗**帶到將應用**部署**到雲端的流程中。🎉

`@lru_cache` is part of `functools` which is part of Python's standard library, you can read more about it in the [Python docs for `@lru_cache`](https://docs.python.org/3/library/functools.html#functools.lru_cache).

## Recap { #recap }

// license that can be found in the LICENSE file.

/*
Package zip provides support for reading and writing ZIP archives.

See the [ZIP specification] for details.

This package does not support disk spanning.

A note about ZIP64:

To be backwards compatible the FileHeader has both 32 and 64 bit Size
fields. The 64 bit fields will always contain the correct value and
for normal archives both fields will be the same. For files requiring