{* ../../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">

/**
 * The search form for Stopwords.
 */
public class SearchForm {

    /**
     * Default constructor for SearchForm.
     */
    public SearchForm() {
    }

    /**
     * The dictionary ID field for stopwords dictionary operations.
     */
    @Required
    public String dictId;

/**
 * The search form for Bad Word.
 */
public class SearchForm {

    /**
     * Default constructor for SearchForm.
     */
    public SearchForm() {
    }

    /**
     * The ID field for searching bad words.
     */
    public String id;

/**
 * The search form for File Authentication.
 */
public class SearchForm {

    /**
     * Default constructor for SearchForm.
     */
    public SearchForm() {
    }

    /**
     * The ID field for searching file authentication settings.
     */
    public String id;

/**
 * The search form for Access Token.
 */
public class SearchForm {

    /**
     * Default constructor for SearchForm.
     */
    public SearchForm() {
    }

    /**
     * The ID field for searching access tokens.
     */
    public String id;

/**
 * The search form for Crawling Info.
 */
public class SearchForm {

    /**
     * Default constructor for SearchForm.
     */
    public SearchForm() {
    }

    /**
     * The session ID field for searching crawling information.
     */
    public String sessionId;

/**
 * The search form for Kuromoji.
 */
public class SearchForm {

    /**
     * Default constructor for SearchForm.
     */
    public SearchForm() {
    }

    /**
     * The dictionary ID field for Kuromoji dictionary operations.
     */
    @Required
    public String dictId;

/**
 * The search form for Stemmer Override.
 */
public class SearchForm {

    /**
     * Default constructor for SearchForm.
     */
    public SearchForm() {
    }

    /**
     * The dictionary ID field for stemmer override dictionary operations.
     */
    @Required
    public String dictId;

/**
 * The search form for Synonym.
 */
public class SearchForm {

    /**
     * Default constructor for SearchForm.
     */
    public SearchForm() {
    }

    /**
     * The dictionary ID field for synonym dictionary operations.
     */
    @Required
    public String dictId;

package org.codelibs.fess.app.web.api.admin.reqheader;

import org.codelibs.fess.app.web.admin.reqheader.CreateForm;

/**
 * Request body for creating request header via REST API.
 * Extends CreateForm to inherit validation and field definitions.
 */
public class CreateBody extends CreateForm {

    /**
     * Creates a new CreateBody instance.
     */
    public CreateBody() {
    }