import org.lastaflute.web.util.LaRequestUtil;

import jakarta.annotation.PostConstruct;

/**
 * The helper for user activities.
 * This class provides methods to log user actions such as login, logout, and access.
 * It supports both LTSV and ECS log formats.
 *
 */
public class ActivityHelper {

    /**
     * Default constructor.
     */
    public ActivityHelper() {

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**FastAPI** doesn't enforce any specific meaning.

The information here is presented as a guideline, not a requirement.

For example, when using GraphQL you normally perform all the actions using only `POST` operations.

///

### Step 4: define the **path operation function** { #step-4-define-the-path-operation-function }

This is our "**path operation function**":

* **path**: is `/`.

    // places left to rotate.
    int m = -distance % length;
    m = (m < 0) ? m + length : m;
    // The current index of what will become the first element of the rotated section.
    int newFirstIndex = m + fromIndex;
    if (newFirstIndex == fromIndex) {
      return;
    }

    reverse(array, fromIndex, newFirstIndex);
    reverse(array, newFirstIndex, toIndex);

    // places left to rotate.
    int m = -distance % length;
    m = (m < 0) ? m + length : m;
    // The current index of what will become the first element of the rotated section.
    int newFirstIndex = m + fromIndex;
    if (newFirstIndex == fromIndex) {
      return;
    }

    reverse(array, fromIndex, newFirstIndex);
    reverse(array, newFirstIndex, toIndex);

    // places left to rotate.
    int m = -distance % length;
    m = (m < 0) ? m + length : m;
    // The current index of what will become the first element of the rotated section.
    int newFirstIndex = m + fromIndex;
    if (newFirstIndex == fromIndex) {
      return;
    }

    reverse(array, fromIndex, newFirstIndex);
    reverse(array, newFirstIndex, toIndex);

 * prefer the simplest interface that satisfies your use case. See the <a
 * href="https://github.com/google/guava/wiki/GraphsExplained#choosing-the-right-graph-type">
 * "Choosing the right graph type"</a> section of the Guava User Guide for more details.
 *
 * <h3>Capabilities</h3>
 *
 * <p>{@code Network} supports the following use cases (<a
 * href="https://github.com/google/guava/wiki/GraphsExplained#definitions">definitions of

El beneficio de lanzar una excepción en lugar de `return`ar un valor será más evidente en la sección sobre Dependencias y Seguridad.

En este ejemplo, cuando el cliente solicita un ítem por un ID que no existe, lanza una excepción con un código de estado de `404`:

{* ../../docs_src/handling_errors/tutorial001.py hl[11] *}

* El frontend almacena temporalmente ese token en algún lugar.
* El usuario hace clic en el frontend para ir a otra sección de la aplicación web frontend.
* El frontend necesita obtener más datos de la API.
    * Pero necesita autenticación para ese endpoint específico.

/// info | Información

Si ya sabes sobre entornos virtuales, cómo crearlos y usarlos, podrías querer saltar esta sección. 🤓

///

/// tip | Consejo

Un **entorno virtual** es diferente de una **variable de entorno**.

Una **variable de entorno** es una variable en el sistema que puede ser usada por programas.