**FastAPI** will make sure to read that data from the right place instead of JSON.

!!! note "Technical Details"
    Data from forms is normally encoded using the "media type" `application/x-www-form-urlencoded`.

    But when the form includes files, it is encoded as `multipart/form-data`. You'll read about handling files in the next chapter.

        "The TID specified was invalid.", "The handle is invalid.", "The network name cannot be found.",
        "Not enough storage is available to process this command.", "The media is write protected.", "The device is not ready.",
        "A device attached to the system is not functioning.", "A device attached to the system is not functioning.",

video/mpeg                     mpeg mpg mpe     # MPEG Movie File
video/quicktime                qt mov           # Quicktime Movie File
video/x-ms-asf                 asf asx          # Windows Media  File
video/x-msvideo                avi              # AVI Movie File

        "The TID specified was invalid.",
        "The handle is invalid.",
        "The network name cannot be found.",
        "Not enough storage is available to process this command.",
        "The media is write protected.",
        "The device is not ready.",
        "A device attached to the system is not functioning.",
        "A device attached to the system is not functioning.",

site_url: https://fastapi.tiangolo.com/
theme:
  name: material
  custom_dir: ../en/overrides
  palette:
  - media: '(prefers-color-scheme: light)'
    scheme: default
    primary: teal
    accent: amber
    toggle:
      icon: material/lightbulb
      name: Switch to dark mode
  - media: '(prefers-color-scheme: dark)'
    scheme: slate
    primary: teal
    accent: amber
    toggle:

<picture>
  <source media="(prefers-color-scheme: dark)" srcset="./gradle-white-primary.png" width="350px">
  <img alt="Gradle" src="./gradle-dark-green-primary.png" width="350px">
</picture>

[![Revved up by Develocity](https://img.shields.io/badge/Revved%20up%20by-Develocity-06A0CE?logo=Gradle&labelColor=02303A)](https://ge.gradle.org/scans)

HTMLフォーム（`<form></form>`）がサーバにデータを送信する方法は、通常、そのデータに「特別な」エンコーディングを使用していますが、これはJSONとは異なります。

**FastAPI** は、JSONの代わりにそのデータを適切な場所から読み込むようにします。

!!! note "技術詳細"
    フォームからのデータは通常、`application/x-www-form-urlencoded`の「media type」を使用してエンコードされます。

    しかし、フォームがファイルを含む場合は、`multipart/form-data`としてエンコードされます。ファイルの扱いについては次の章で説明します。

## Conflict Resolution

 | `gz`  | (GZIP)      |
 | `bz2` | (BZIP2)     |
 | `rar` | (WinRAR)    |
 | `zip` | (ZIP)       |
 | `7z`  | (7-Zip)     |
 | `xz`  | (LZMA)      |
 | `mp4` | (MP4)       |
 | `mkv` | (MKV media) |
 | `mov` | (MOV)       |

- Content-Types

 | `video/*`                |
 | `audio/*`                |
 | `application/zip`        |
 | `application/x-gzip`     |
 | `application/zip`        |

 *  Be more aggressive about testing pooled sockets before reuse. (thanks
    warpspin)
 *  Include `Content-Type` and `Content-Encoding` in the Apache HTTP client
    adapter. (thanks kwuollett)
 *  Add a media type class to OkHttp.
 *  Change custom header prefix:

    ```
    X-Android-Sent-Millis is now OkHttp-Sent-Millis
    X-Android-Received-Millis is now OkHttp-Received-Millis