///

## Verdopplung vermeiden { #reduce-duplication }

Die Reduzierung von Code-Verdoppelung ist eine der Kernideen von **FastAPI**.

Da die Verdopplung von Code die Wahrscheinlichkeit von Fehlern, Sicherheitsproblemen, Problemen mit der Desynchronisation des Codes (wenn Sie an einer Stelle, aber nicht an der anderen aktualisieren) usw. erhöht.

    - advanced/path-operation-advanced-configuration.md
    - advanced/additional-status-codes.md
    - advanced/response-directly.md
    - advanced/custom-response.md
    - advanced/additional-responses.md
    - advanced/response-cookies.md
    - advanced/response-headers.md
    - advanced/response-change-status-code.md
    - advanced/advanced-dependencies.md
    - Advanced Security:
      - advanced/security/index.md

Sie können also weiterhin die `HTTPException` von **FastAPI** wie üblich in Ihrem Code auslösen.

Aber wenn Sie einen Exceptionhandler registrieren, sollten Sie ihn für die `HTTPException` von Starlette registrieren.

	}
	if err := DB.Model(&user).Association("Languages").Append(map[string]interface{}{"code": "am2m_map_3", "name": "AppendMap3"}); err != nil {
		t.Fatalf("append map 3: %v", err)
	}
	AssertAssociationCount(t, user, "Languages", 3, "after append 3 maps total")

	// Verify codes exist
	var langs []Language
	if err := DB.Model(&user).Association("Languages").Find(&langs); err != nil {
		t.Fatalf("find languages: %v", err)
	}

  val result = Buffer()
  var i = 0
  while (i < address.size) {
    if (i == longestRunOffset) {
      result.writeByte(':'.code)
      i += longestRunLength
      if (i == 16) result.writeByte(':'.code)
    } else {
      if (i > 0) result.writeByte(':'.code)
      val group = address[i] and 0xff shl 8 or (address[i + 1] and 0xff)
      result.writeHexadecimalUnsignedLong(group.toLong())
      i += 2
    }

    public String toString() {
      return "IsOdd";
    }
  }

  /**
   * Generates a new Predicate per call.
   *
   * <p>Creating a new Predicate each time helps catch cases where code is using {@code x == y}
   * instead of {@code x.equals(y)}.
   */
  private static IsOdd isOdd() {
    return new IsOdd();
  }

  /*
   * Tests for Predicates.alwaysTrue().
   */

  public void testAlwaysTrue_apply() {

## Version 2.2.0

_2014-12-30_

 *  **`RequestBody.contentLength()` now throws `IOException`.**
    This is a source-incompatible change. If you have code that calls
    `RequestBody.contentLength()`, your compile will break with this
    update. The change is binary-compatible, however: code compiled
    for OkHttp 2.0 and 2.1 will continue to work with this update.

 *  **`COMPATIBLE_TLS` no longer supports SSLv3.** In response to the

In any case, the language code should be in the file <a href="https://github.com/fastapi/fastapi/blob/master/docs/language_names.yml" class="external-link" target="_blank">docs/language_names.yml</a>.

FROM python:3.9

WORKDIR /code

COPY ./requirements.txt /code/requirements.txt

RUN pip install --no-cache-dir --upgrade -r /code/requirements.txt

# (1)!
COPY ./main.py /code/

# (2)!
CMD ["fastapi", "run", "main.py", "--port", "80"]
```

1. Kopiere die Datei `main.py` direkt in das Verzeichnis `/code` (ohne ein Verzeichnis `./app`).

	// It must match the data used during encryption
	// or data key generation.
	AssociatedData Context
}

// MACRequest is a structure containing fields
// and options for generating message authentication
// codes (MAC).
type MACRequest struct {
	// Name is the name of the master key used decrypt
	// the ciphertext.
	Name string

	Version int

	Message []byte
}