/// info

This requires installing `orjson` for example with `pip install orjson`.

///

### `UJSONResponse` { #ujsonresponse }

An alternative JSON response using <a href="https://github.com/ultrajson/ultrajson" class="external-link" target="_blank">`ujson`</a>.

/// info

    /**
     * Reset the {@code profileMap} field to {@code null}
     */
    public void flushProfileMap() {
        this.profileMap = null;
    }

    /**
     * @return a Map of profiles field keyed by {@link Profile#getId()}
     */
    public java.util.Map<String, Profile> getProfilesAsMap() {
        if (profileMap == null) {
            profileMap = new java.util.LinkedHashMap<String, Profile>();

          }

          @Override public void writeTo(BufferedSink sink) throws IOException {
            BufferedSink bufferedSink = Okio.buffer(sink(sink));
            delegate.writeTo(bufferedSink);
            bufferedSink.flush();
          }

          public Sink sink(Sink sink) {
            return new ForwardingSink(sink) {
              private long totalBytesWritten = 0L;

/// tip | Consejo

Las siguientes secciones **no son necesariamente "avanzadas"**.

Y es posible que para tu caso de uso, la solución esté en una de ellas.

///

## Lee primero el Tutorial

Las siguientes secciones asumen que ya leíste el [Tutorial - Guía del Usuario: Seguridad](../../tutorial/security/index.md){.internal-link target=_blank}.

# Fortgeschrittene Sicherheit

## Zusatzfunktionen

Neben den in [Tutorial – Benutzerhandbuch: Sicherheit](../../tutorial/security/index.md){.internal-link target=_blank} behandelten Funktionen gibt es noch einige zusätzliche Funktionen zur Handhabung der Sicherheit.

/// tip | Tipp

Die nächsten Abschnitte sind **nicht unbedingt „fortgeschritten“**.

Und es ist möglich, dass für Ihren Anwendungsfall die Lösung in einem davon liegt.

///

     * {@link org.apache.maven.api.services.BuilderProblem.Severity#ERROR}.
     */
    default boolean hasErrorProblems() {
        return hasProblemsFor(BuilderProblem.Severity.ERROR);
    }

    /**
     * Returns {@code true} if there is at least one problem collected with severity equal or more severe than
     * {@link org.apache.maven.api.services.BuilderProblem.Severity#FATAL}.
     */

## Conclusion { #conclusion }

With this you should have a basic understanding of what **environment variables** are and how to use them in Python.

You can also read more about them in the <a href="https://en.wikipedia.org/wiki/Environment_variable" class="external-link" target="_blank">Wikipedia for Environment Variable</a>.

/// info

Чтобы узнать больше о <a href="https://docs.pydantic.dev/" class="external-link" target="_blank">Pydantic, читайте его документацию</a>.

///

**FastAPI** целиком основан на Pydantic.

Вы увидите намного больше всего этого на практике в [Руководстве пользователя](tutorial/index.md){.internal-link target=_blank}.

## Аннотации типов в **FastAPI**

## Conclusion

Hiermee heb je basiskennis van wat **omgevingsvariabelen** zijn en hoe je ze in Python kunt gebruiken.

Je kunt er ook meer over lezen op de <a href="https://en.wikipedia.org/wiki/Environment_variable" class="external-link" target="_blank">Wikipedia over omgevingsvariabelen</a>.

  /** The HTTP {@code Last-Modified} header field name. */
  public static final String LAST_MODIFIED = "Last-Modified";

  /** The HTTP {@code Link} header field name. */
  public static final String LINK = "Link";

  /** The HTTP {@code Location} header field name. */
  public static final String LOCATION = "Location";

  /**
   * The HTTP {@code Keep-Alive} header field name.
   *