# Declare Request Example Data { #declare-request-example-data }

You can declare examples of the data your app can receive.

Here are several ways to do it.

## Extra JSON Schema data in Pydantic models { #extra-json-schema-data-in-pydantic-models }

You can declare `examples` for a Pydantic model that will be added to the generated JSON Schema.

//// tab | Pydantic v2

{* ../../docs_src/schema_extra_example/tutorial001_py310.py hl[13:24] *}

d-with-errors":"disabled-without-errors").on("reset",function(){e(a(this),"disabled")}).find("*[data-validation]").valAttr("event","keyup change").on("validation",function(b,c){if(!f){f=!0;var g=a(this).closest("form");c&&d(g,this,h)?e(g,"enabled"):e(g,"disabled"),f=!1}}).on("afterValidation",k).on("blur",function(){a(this).valAttr("have-been-blurred",1)}).each(function(){var b=a(this),c=b.attr("data-validation");c.indexOf("checkbox_group")>-1&&b.closest("form").find('input[name="'+b.attr("name"...

    /**
     * Field name for transformer name.
     */
    public static final String TRANSFORMER_NAME = "transformerName";

    /**
     * Field name for data.
     */
    public static final String DATA = "data";

    /**
     * Field name for encoding.
     */
    public static final String ENCODING = "encoding";

    /**
     * Creates a new instance of OpenSearchAccessResultData.

        return ComponentUtil.getIngestFactory();
    }

    /**
     * Processes a result data object for web/file crawling.
     * Default implementation returns the target unchanged.
     *
     * @param target the result data to process
     * @param responseData the response data from crawling
     * @return the processed result data
     */
    public ResultData process(final ResultData target, final ResponseData responseData) {

        return asHtml(path_AdminFailureurl_AdminFailureurlJsp).renderWith(data -> {
            searchPaging(data, form);
        });
    }

    /**
     * Sets up pagination data and restores search form values from the pager.
     *
     * @param data the render data to populate with failure URL items
     * @param form the search form to restore values into
     */

 * <p>
 * The caching system supports different retention periods through {@link org.apache.maven.api.cache.CacheRetention}:
 * <ul>
 *   <li>PERSISTENT - Data persists across Maven invocations</li>
 *   <li>SESSION_SCOPED - Data retained for the duration of a Maven session</li>
 *   <li>REQUEST_SCOPED - Data retained only for the current build request</li>
 *   <li>DISABLED - No caching performed</li>
 * </ul>
 * <p>
 * Example usage:
 * <pre>

You can use the `jsonable_encoder` to convert the input data to data that can be stored as JSON (e.g. with a NoSQL database). For example, converting `datetime` to `str`.

{* ../../docs_src/body_updates/tutorial001_py310.py hl[28:33] *}

`PUT` is used to receive data that should replace the existing data.

### Warning about replacing { #warning-about-replacing }

    }

    /**
     * Sets the data to be written to the file.
     *
     * @param data the data buffer to write
     * @param offset the offset in the data buffer
     * @param length the number of bytes to write
     */
    public void setData(final byte[] data, final int offset, final int length) {
        this.data = data;
        this.dataOffset = offset;
        this.dataLength = length;
    }

                                            <c:forEach var="data" varStatus="s" items="${jobLogItems}">
                                                <tr
                                                        data-href="${contextPath}/admin/joblog/details/4/${f:u(data.id)}">
                                                    <td>${f:h(data.jobName)}</td>

  protected final T data;
  protected final T expected;

  private final String suiteName;
  private final String caseDesc;

  SourceSinkTester(F factory, T data, String suiteName, String caseDesc, Method method) {
    super(method.getName());
    this.factory = checkNotNull(factory);
    this.data = checkNotNull(data);
    this.expected = checkNotNull(factory.getExpected(data));