### Casos de uso: serviço externo

Um exemplo pode ser que você possua um provedor de autenticação externo que você precisa chamar.

Você envia ao serviço um *token* e ele retorna um usuário autenticado.

 * This exception includes an HTTP status code to indicate the nature of the error.
 */
public class WebApiException extends FessSystemException {

    private static final long serialVersionUID = 1L;

    /**
     * The HTTP status code associated with this exception.
     */
    private final int statusCode;

    /**
     * Gets the HTTP status code associated with this exception.
     *

    if match is found, the toolchain instance is made available to other Maven plugins.</p>
    <p>With {@code jdk} toolchain, for example, instead of being stuck with the JDK used to run Maven, all plugins can use
    the same other JDK instance without hardcoding absolute paths into the {@code pom.xml}

    }

    private static final Logger logger = Logger.getLogger(JarFileUtil.class);

    /**
     * Creates and returns a <code>JarFile</code> to read the specified JAR file.
     *
     * @param file the file path (must not be {@literal null})
     * @return a <code>JarFile</code> to read the specified JAR file
     */
    public static JarFile create(final String file) {
        assertArgumentNotNull("file", file);

  }

  @Override
  public @Nullable V value(N node) {
    return adjacentNodeValues.get(node);
  }

  @Override
  public void removePredecessor(N node) {
    @SuppressWarnings("unused")
    V unused = removeSuccessor(node);
  }

  @Override
  public @Nullable V removeSuccessor(N node) {
    return adjacentNodeValues.remove(node);
  }

  @Override

import java.io.InputStream;

/**
 * An implementation of {@link DataInput} that uses little-endian byte ordering for reading {@code
 * short}, {@code int}, {@code float}, {@code double}, and {@code long} values.
 *
 * <p><b>Note:</b> This class intentionally violates the specification of its supertype {@code
 * DataInput}, which explicitly requires big-endian byte order.
 *
 * @author Chris Nokleberg
 * @author Keith Bottner

# (1)
FROM python:3.9

# (2)
WORKDIR /code

# (3)
COPY ./requirements.txt /code/requirements.txt

# (4)
RUN pip install --no-cache-dir --upgrade -r /code/requirements.txt

# (5)
COPY ./app /code/app

# (6)
CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "80"]
```

1. 공식 파이썬 베이스 이미지에서 시작합니다.

2. 현재 워킹 디렉터리를 `/code`로 설정합니다.

                Arguments.of(NbtException.ERR_NAM_SRVC, NbtException.SRV_ERR, "ERR_NAM_SRVC/Unknown error code: 2"),
                Arguments.of(NbtException.ERR_NAM_SRVC, NbtException.IMP_ERR, "ERR_NAM_SRVC/Unknown error code: 4"),
                Arguments.of(NbtException.ERR_NAM_SRVC, NbtException.RFS_ERR, "ERR_NAM_SRVC/Unknown error code: 5"),

     * The matching is based on tag name, and optionally ID, CSS class, or custom attributes.
     *
     * @param node the DOM node to check against this pruned tag configuration
     * @return true if the node matches this pruned tag configuration, false otherwise
     */
    public boolean matches(final Node node) {
        if (tag.equalsIgnoreCase(node.getNodeName())) {

 *
 * <p><b>Warning:</b> The methods of {@code ForwardingNavigableSet} forward <i>indiscriminately</i>
 * to the methods of the delegate. For example, overriding {@link #add} alone <i>will not</i> change
 * the behavior of {@link #addAll}, which can lead to unexpected behavior. In this case, you should
 * override {@code addAll} as well, either providing your own implementation, or delegating to the
 * provided {@code standardAddAll} method.
 *