{* ../../docs_src/query_param_models/tutorial001_an_py310.py hl[9:13,17] *}

**FastAPI** will **extract** the data for **each field** from the **query parameters** in the request and give you the Pydantic model you defined.

## Check the Docs { #check-the-docs }

You can see the query parameters in the docs UI at `/docs`:

<div class="screenshot">

                // facet field
                if (facetResponse.getFieldList() != null) {
                    facetField = facetResponse.getFieldList().stream().map(field -> {
                        final Map<String, Object> fieldMap = new HashMap<>(2, 1f);
                        fieldMap.put("name", field.getName());
                        fieldMap.put("result", field.getValueCountMap().entrySet().stream().map(e -> {

1. Click **Management**.
1. Click **Index Patterns**.
1. Click **Create index pattern** button
1. Input "fess\_log\*" to the textbox of **index pattern**.
1. Click **Next step**.
1. Set "requestedAt" to the **Time Filter field name**.
1. Click **Create index pattern**.
1. Click **Saved Objects**.
1. Click **Import** and select "fess\_log.ndjson" to import example settings.
1. Click **Dashboard**.
1. Select "fess\_log" dashboard.

   * restrictions</i>.
   */
  @Retention(RetentionPolicy.CLASS)
  @Target({ElementType.TYPE, ElementType.METHOD, ElementType.CONSTRUCTOR, ElementType.FIELD})
  @Documented
  @interface GwtIncompatible {
    String value();
  }

  private Partially() {}

        );
    }

    // Helper methods

    private void setPrivateField(Object target, String fieldName, Object value) throws Exception {
        Field field = target.getClass().getDeclaredField(fieldName);
        field.setAccessible(true);
        field.set(target, value);
    }

    private void setResponseAsReceived(Smb2NegotiateResponse resp) throws Exception {

            final String mappings = new String(is.readAllBytes(), StandardCharsets.UTF_8);

            // Verify expected fields exist
            assertTrue("Should contain text field", mappings.contains("text"));
            assertTrue("Should define field types", mappings.contains("type"));
        }

        // Test settings content

 * </ul>
 *
 * <p>Example usage:</p>
 * <pre>
 * {@code
 * HankakuKanaToZenkakuKana normalizer = new HankakuKanaToZenkakuKana();
 * String normalized = normalizer.normalize("ｶﾞｷﾞｸﾞｹﾞｺﾞ", "field");
 * System.out.println(normalized); // Outputs: ガギグゲゴ
 * }
 * </pre>
 *
 * <p>Note: This class assumes that the input string contains valid Hankaku Kana characters
 * and does not perform any validation on the input.</p>

 * {@code @GwtIncompatible} annotation in GWT itself</a>.
 *
 * @author Charles Fry
 */
@Retention(RetentionPolicy.CLASS)
@Target({ElementType.TYPE, ElementType.METHOD, ElementType.CONSTRUCTOR, ElementType.FIELD})
@Documented
@GwtCompatible
public @interface GwtIncompatible {
  /**
   * Describes why the annotated element is incompatible with GWT. Since this is generally due to a

   * restrictions</i>.
   */
  @Retention(RetentionPolicy.CLASS)
  @Target({ElementType.TYPE, ElementType.METHOD, ElementType.CONSTRUCTOR, ElementType.FIELD})
  @Documented
  @interface GwtIncompatible {
    String value();
  }

  private Partially() {}

        }).toArray(SearchResult[]::new);

        final String scoreField = fessConfig.getRankFusionScoreField();
        final Map<String, Map<String, Object>> documentsByIdMap = new HashMap<>();
        final String idField = fessConfig.getIndexFieldId();
        final Set<Object> mainSearcherIdSet = new HashSet<>();
        for (int searcherIndex = 0; searcherIndex < results.length; searcherIndex++) {