이전 코드 예제로 돌아가서, **FastAPI**는 다음처럼 처리합니다:

* `GET` 및 `PUT` 요청에 `item_id`가 경로에 있는지 검증.
* `GET` 및 `PUT` 요청에 `item_id`가 `int` 타입인지 검증.
    * 그렇지 않다면 클라이언트는 유용하고 명확한 에러를 볼 수 있습니다.
* `GET` 요청에 `q`라는 선택적인 쿼리 매개변수가 검사(`http://127.0.0.1:8000/items/foo?q=somequery`처럼).
    * `q` 매개변수는 `= None`으로 선언되었기 때문에 선택사항입니다.
    * `None`이 없다면 필수사항입니다(`PUT`의 경우와 마찬가지로).
* `/items/{item_id}`으로의 `PUT` 요청은 본문을 JSON으로 읽음:
    * `name`을 필수 속성으로 갖고 `str` 형인지 검사.

        
        // Create directory cache entry
        DirectoryCacheEntry cacheEntry = new DirectoryCacheEntry(directoryPath, leaseKey, scope);
        directoryCache.put(directoryPath, cacheEntry);
        leaseToPath.put(leaseKey, directoryPath);
        
        // Start change notification if enabled
        if (context.getConfig().isDirectoryNotificationsEnabled()) {

      return original.get(columnKey, rowKey);
    }

    @Override
    public @Nullable V put(
        @ParametricNullness C rowKey,
        @ParametricNullness R columnKey,
        @ParametricNullness V value) {
      return original.put(columnKey, rowKey, value);
    }

    @Override
    public void putAll(Table<? extends C, ? extends R, ? extends V> table) {

         * name as a zero terminated ascii string "\TMP" + '\0'
         *
         * As is this works, but it deviates from the spec section 4.1.6.6 but
         * maybe I should put it in. Wonder what NT does?
         */

        return dstIndex - start;
    }

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

    @Override

    public BuildSummary getBuildSummary(MavenProject project) {
        return buildSummaries.get(project);
    }

    @Override
    public void addBuildSummary(BuildSummary summary) {
        buildSummaries.put(summary.getProject(), summary);
    }

    @Override
    public boolean canResume() {
        return canResume;
    }

    @Override
    public void setCanResume(boolean canResume) {

            addFieldToSource(sourceMap, "sessionId", sessionId);
        }
        return sourceMap;
    }

    protected void addFieldToSource(Map<String, Object> sourceMap, String field, Object value) {
        sourceMap.put(field, value);
    }

    // ===================================================================================
    //                                                                      Basic Override

            addFieldToSource(sourceMap, "value", value);
        }
        return sourceMap;
    }

    protected void addFieldToSource(Map<String, Object> sourceMap, String field, Object value) {
        sourceMap.put(field, value);
    }

    // ===================================================================================
    //                                                                      Basic Override

    /**
     * Adds an SMB authentication configuration to the holder.
     *
     * @param auth the SMB authentication configuration to add
     */
    public void add(final SmbAuthentication auth) {
        authMap.put(auth.getPathPrefix(), auth);
    }

    /**
        * Retrieves the SmbAuthentication associated with the given path.
        *
        * <p>

      Types.newParameterizedType(Map.class, String.class, String.class));

  public void run() throws Exception {
    Map<String, String> requestBody = new LinkedHashMap<>();
    requestBody.put("longUrl", "https://publicobject.com/2014/12/04/html-formatting-javadocs/");
    RequestBody jsonRequestBody = RequestBody.create(
        mapJsonAdapter.toJson(requestBody), MEDIA_TYPE_JSON);

        for (Object provided : getScopeState().provided()) {
            if (provided instanceof WeakMojoExecutionListener weakMojoExecutionListener) {
                listeners.put(weakMojoExecutionListener, null);
            }
        }
        return listeners.keySet();
    }