Más adelante, para tu aplicación en producción, es posible que desees usar un servidor de base de datos como **PostgreSQL**.

/// tip | Consejo

```JSON hl_lines="4-8"
{
    "openapi": "3.1.0",
    // Más cosas aquí
    "servers": [
        {
            "url": "/api/v1"
        }
    ],
    "paths": {
            // Más cosas aquí
    }
}
```

For a quick installation, docker-compose reference configs are also available on the [Keycloak GitHub](https://github.com/keycloak/keycloak-containers/tree/main/docker-compose-examples).

### Configure Keycloak Realm

- Go to Clients
  - Click on account
    - Settings
    - Change `Access Type` to `confidential`.
    - Save
  - Click on credentials tab

     * Gets the path to email template files directory.
     *
     * @param names the path components to append to the mail template directory
     * @return the Path object pointing to the mail template directory
     */
    public static Path getMailTemplatePath(final String... names) {
        return getPath("WEB-INF/", "mail", names);
    }

    /**
     * Gets the path to view template files directory.
     *

      <unsubscribe>******@****.***</unsubscribe>
      <post>******@****.***</post>
      <archive>http://mail-archives.apache.org/mod_mbox/maven-dev</archive>
      <otherArchives>
        <otherArchive>http://www.mail-archive.com/******@****.***/</otherArchive>
        <otherArchive>http://www.nabble.com/Maven-Developers-f179.html</otherArchive>

                                            key="labels.user_mail"/></label>
                                    <div class="col-sm-9">
                                        <la:errors property="attributes.mail"/>
                                        <la:text styleId="attributes.mail" property="attributes.mail" styleClass="form-control"/>

        oos.writeObject(original);
        oos.close();

        // Deserialize
        ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
        ObjectInputStream ois = new ObjectInputStream(bais);
        CrawlerSystemException deserialized = (CrawlerSystemException) ois.readObject();
        ois.close();

        // Verify

        oos.writeObject(exception);
        oos.close();

        // And deserialize
        java.io.ByteArrayInputStream bais = new java.io.ByteArrayInputStream(baos.toByteArray());
        java.io.ObjectInputStream ois = new java.io.ObjectInputStream(bais);
        SmbOperationException deserialized = (SmbOperationException) ois.readObject();
        ois.close();

        // Then

   */
  static <K extends @Nullable Object, V extends @Nullable Object>
      Map<K, V> preservesInsertionOrderOnPutsMapWithExpectedSize(int expectedSize) {
    return Maps.newLinkedHashMapWithExpectedSize(expectedSize);
  }

  /**
   * Returns the platform preferred set implementation that preserves insertion order when used only
   * for insertions.
   */

<div class="termy">

```console
$ cd ~/code/prisoner-of-azkaban

$ python main.py

// Error importando sirius, no está instalado 😱
Traceback (most recent call last):
    File "main.py", line 1, in <module>
        import sirius
```

</div>