/// note | Технічні деталі

Дані з форм зазвичай кодуються за допомогою "типу медіа" `application/x-www-form-urlencoded`.

Але якщо форма містить файли, вона кодується як `multipart/form-data`. Ви дізнаєтеся про обробку файлів у наступному розділі.

`UploadFile` 에는 다음의 `async` 메소드들이 있습니다. 이들은 내부적인 `SpooledTemporaryFile` 을 사용하여 해당하는 파일 메소드를 호출합니다.

* `write(data)`: `data`(`str` 또는 `bytes`)를 파일에 작성합니다.
* `read(size)`: 파일의 바이트 및 글자의 `size`(`int`)를 읽습니다.
* `seek(offset)`: 파일 내 `offset`(`int`) 위치의 바이트로 이동합니다.
    * 예) `await myfile.seek(0)` 를 사용하면 파일의 시작부분으로 이동합니다.

    * Code aanvulling.
    * Type validatie.
* Validatie van data:
    * Automatische en duidelijke foutboodschappen wanneer de data ongeldig is.
    * Validatie zelfs voor diep geneste JSON objecten.
* <abbr title="ook bekend als: serialisatie, parsing, marshalling">Conversie</abbr> van invoergegevens: afkomstig van het netwerk naar Python-data en -types. Zoals:
    * JSON.
    * Pad parameters.
    * Query parameters.

            parameterOffset += pad;

            totalParameterCount = writeParametersWireFormat(txn_buf, bufParameterOffset);
            bufDataOffset = totalParameterCount; // data comes right after data

            int available = maxBufferSize - parameterOffset;
            parameterCount = Math.min(totalParameterCount, available);
            available -= parameterCount;

				"application/x-rar-compressed",
				"application/x-roxio-toast",
				"application/x-rpm",
				"application/x-sas",
				"application/x-sas-program-data",
				"application/x-sas-audit",
				"application/x-sas-data",
				"application/x-sas-view",
				"application/x-sas-data-index",
				"application/x-sas-catalog",
				"application/x-sas-access",
				"application/x-sas-fdb",
				"application/x-sas-mddb",

  /**
   * Returns a new {@link CharSource} for reading character data from the given file using the given
   * character set.
   *
   * @since 14.0
   */
  public static CharSource asCharSource(File file, Charset charset) {
    return asByteSource(file).asCharSource(charset);
  }

  /**
   * Returns a new {@link CharSink} for writing character data to the given file using the given

this Lesser General Public License (also called "this License").
Each licensee is addressed as "you".

  A "library" means a collection of software functions and/or data
prepared so as to be conveniently linked with application programs
(which use some of those functions and data) to form executables.

  The "Library", below, refers to any such software library or work
which has been distributed under these terms.  A "work based on the

The zoneinfo.zip archive contains time zone files compiled using
the code and data maintained as part of the IANA Time Zone Database.
The IANA asserts that the database is in the public domain.

For more information, see
https://www.iana.org/time-zones
ftp://ftp.iana.org/tz/code/tz-link.html
https://datatracker.ietf.org/doc/html/rfc6557

// Set - sets a new metadata in-memory.
// Only a shallow copy is saved and fields with references
// cannot be modified without causing a race condition,
// so they should be replaced atomically and not appended to, etc.
// Data is not persisted to disk.
func (sys *BucketMetadataSys) Set(bucket string, meta BucketMetadata) {
	if !isMinioMetaBucketName(bucket) {
		sys.Lock()
		sys.metadataMap[bucket] = meta
		sys.Unlock()
	}
}

Interceptors can be chained. Suppose you have both a compressing interceptor and a checksumming interceptor: you'll need to decide whether data is compressed and then checksummed, or checksummed and then compressed. OkHttp uses lists to track interceptors, and interceptors are called in order.

![Interceptors Diagram](../assets/images/******@****.***)