# Body - Multiple Parameters { #body-multiple-parameters }

Now that we have seen how to use `Path` and `Query`, let's see more advanced uses of request body declarations.

## Mix `Path`, `Query` and body parameters { #mix-path-query-and-body-parameters }

First, of course, you can mix `Path`, `Query` and request body parameter declarations freely and **FastAPI** will know what to do.

    /**
     * Creates a new SMB1 delete directory request.
     *
     * @param config the CIFS configuration
     * @param path the path of the directory to delete
     */
    public SmbComDeleteDirectory(final Configuration config, final String path) {
        super(config, SMB_COM_DELETE_DIRECTORY, path);
    }

    @Override
    protected int writeParameterWordsWireFormat(final byte[] dst, final int dstIndex) {
        return 0;

        return new XmlWriterRequestBuilder<>();
    }

    class XmlWriterRequestBuilder<T> {
        Path path;
        OutputStream outputStream;
        Writer writer;
        T content;
        Function<Object, String> inputLocationFormatter;

        public XmlWriterRequestBuilder<T> path(Path path) {
            this.path = path;
            return this;
        }

     *
     * @param id        The unique identifier for this dictionary file.
     * @param path      The path to the dictionary file.
     * @param timestamp The last modified timestamp of the file.
     */
    public StemmerOverrideFile(final String id, final String path, final Date timestamp) {
        super(id, path, timestamp);
    }

    @Override
    public String getType() {
        return STEMMER_OVERRIDE;
    }

                    walkJavaFiles(srcDir.toPath(), ".java", path -> {
                        String packageName = getPackageName(path);
                        String className = path.subpath(path.getNameCount() - 1, path.getNameCount()).toString();
                        className = className.substring(0, className.length() - ".java".length());
                        LOGGER.info("Inspecting " + path + System.lineSeparator()

You can define Header parameters the same way you define `Query`, `Path` and `Cookie` parameters.

## Import `Header` { #import-header }

First import `Header`:

{* ../../docs_src/header_params/tutorial001_an_py310.py hl[3] *}

## Declare `Header` parameters { #declare-header-parameters }

Then declare the header parameters using the same structure as with `Path`, `Query` and `Cookie`.

  )
  fun method(): String = method

  @JvmName("-deprecated_path")
  @Deprecated(
    message = "moved to val",
    replaceWith = ReplaceWith(expression = "path"),
    level = DeprecationLevel.ERROR,
  )
  fun path(): String = path

  @JvmName("-deprecated_headers")
  @Deprecated(
    message = "moved to val",
    replaceWith = ReplaceWith(expression = "headers"),
    level = DeprecationLevel.ERROR,
  )

        // IPv4 with port and path
        InetAddress ipv4 = InetAddress.getByName("127.0.0.1");
        assertEquals("http://127.0.0.1:8080/path", IpAddressUtil.buildUrl("http", ipv4, 8080, "/path"));
        assertEquals("http://127.0.0.1:8080/path", IpAddressUtil.buildUrl("http", ipv4, 8080, "path"));

        // IPv4 with port, no path

    }

    /**
     * Returns the path to the pom file for this project.
     * A project is usually read from a file named {@code pom.xml},
     * which contains the {@linkplain #getModel() model} in an XML form.
     * When a custom {@code org.apache.maven.api.spi.ModelParser} is used,
     * the path may point to a non XML file.
     * <p>
     * The POM path is also used to define the {@linkplain #getBasedir() base directory}

<components>
	<include path="convention.xml"/>
	<include path="lastaflute.xml"/>
	<include path="lasta_job.xml"/>

	<include path="fess.xml"/>
	<include path="fess_api.xml"/>
	<include path="fess_cors.xml"/>
	<include path="fess_dict.xml"/>
	<include path="fess_job.xml"/>
	<include path="fess_ldap.xml"/>
	<include path="fess_query.xml"/>
	<include path="fess_rankfusion.xml"/>
	<include path="fess_score.xml"/>