# Bigger Applications - Multiple Files { #bigger-applications-multiple-files }

If you are building an application or a web API, it's rarely the case that you can put everything in a single file.

**FastAPI** provides a convenience tool to structure your application while keeping all the flexibility.

/// info

If you come from Flask, this would be the equivalent of Flask's Blueprints.

///

## An example file structure { #an-example-file-structure }

## Security - HTTPS { #security-https }

In the [previous chapter about HTTPS](https.md){.internal-link target=_blank} we learned about how HTTPS provides encryption for your API.

We also saw that HTTPS is normally provided by a component **external** to your application server, a **TLS Termination Proxy**.

 * Explorer. The users credentials with be negotiated using NTLM SSP if
 * the client is Microsoft Internet Explorer.
 *
 * @deprecated Unsupported
 */
@Deprecated
/**
 * A servlet that provides network browsing capabilities for SMB shares.
 * This servlet allows users to browse SMB network resources through a web interface.
 */
public class NetworkExplorer extends HttpServlet {

    /**

import org.lastaflute.web.validation.VaMessenger;

import jakarta.servlet.http.HttpServletRequest;

/**
 * This class represents the base response structure for API results.
 * It encapsulates the API response and provides methods to build different types of API responses.
 */
public class ApiResult {

    /**
     * The API response object.
     */
    protected ApiResponse response = null;

    /**

 * under the License.
 */
package org.fusesource.jansi;

import java.util.ArrayList;

/**
 * Provides a fluent API for generating
 * <a href="https://en.wikipedia.org/wiki/ANSI_escape_code#CSI_sequences">ANSI escape sequences</a>.
 *
 * This class comes from Jansi and is provided for backward compatibility
 * with maven-shared-utils, while Maven has migrated to JLine (into which Jansi has been merged

 *
 * <h4>Creation</h4>
 *
 * <p>Except for logically "abstract" types like {@code ImmutableCollection} itself, each {@code
 * Immutable} type provides the static operations you need to obtain instances of that type. These
 * usually include:
 *
 * <ul>
 *   <li>Static methods named {@code of}, accepting an explicit list of elements or entries.

 * ranking scores to provide more comprehensive and accurate search results.
 *
 * The processor maintains a pool of searchers and an executor service for concurrent operations.
 * It implements rank fusion techniques to combine results from different search engines
 * and provides a unified search interface.
 */
public class RankFusionProcessor implements AutoCloseable {

 * MA 02111-1307, USA
 */

package jcifs.util;

import java.io.IOException;
import java.util.Date;

import jcifs.SmbConstants;

/**
 * Encoding and decoding utility class for SMB protocol.
 * Provides methods for encoding/decoding various data types in different byte orders.
 */
public final class Encdec {

    private static final long SEC_BETWEEEN_1904_AND_1970 = 2082844800L;

    assertThat(Files.toByteArray(i18nFile)).isEqualTo(I18N.getBytes(UTF_8));
    assertThat(Files.asByteSource(i18nFile).read()).isEqualTo(I18N.getBytes(UTF_8));
  }

  /** A {@link File} that provides a specialized value for {@link File#length()}. */
  private static class BadLengthFile extends File {

    private final long badLength;

    BadLengthFile(File delegate, long badLength) {

     * This class uses args4j annotations to define command-line arguments
     * and provides methods to parse and access configuration values.
     */
    public static class Options {

        /** Session ID for the crawling session. If not provided, a timestamp-based ID will be generated. */
        @Option(name = "-s", aliases = "--sessionId", metaVar = "sessionId", usage = "Session ID")