// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package cmd

import (
	"fmt"
	"net"
	"net/http"

        initCause(e)
      }
    }

    // The following try/catch block is a pseudo hacky way to get around a crash on Android 7.0
    // More details:
    // https://github.com/square/okhttp/issues/3245
    // https://android-review.googlesource.com/#/c/271775/
    try {
      this.socket = rawSocket.asBufferedSocket()
    } catch (npe: NullPointerException) {

 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

///

## 데이터 검증

하지만 브라우저에서 <a href="http://127.0.0.1:8000/items/foo" class="external-link" target="_blank">http://127.0.0.1:8000/items/foo</a>로 이동하면, HTTP 오류가 잘 뜨는 것을 확인할 수 있습니다:

```JSON
{
    "detail": [
        {
            "loc": [
                "path",
                "item_id"
            ],
            "msg": "value is not a valid integer",
            "type": "type_error.integer"
        }
    ]

你也可以用它自動生成程式碼，讓前端、手機應用程式或物聯網設備等與你的 API 進行通訊。

## 逐步回顧

### 第一步：引入 `FastAPI`

{* ../../docs_src/first_steps/tutorial001.py h1[1] *}

`FastAPI` 是一個 Python 類別，提供所有 API 的全部功能。

/// note | Technical Details

`FastAPI` 是一個直接繼承自 `Starlette` 的類別。

你同樣可以透過 `FastAPI` 來使用 <a href="https://www.starlette.io/" class="external-link" target="_blank">Starlette</a> 所有的功能。

///

### 第二步：建立一個 `FastAPI` 「實例」

// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package cmd

import (
	"bytes"
	"context"

	// Captures if root credentials are set via ENV.
	globalCredViaEnv bool

	globalPublicCerts []*x509.Certificate

	globalDomainNames []string      // Root domains for virtual host style requests
	globalDomainIPs   set.StringSet // Root domain IP address(s) for a distributed MinIO deployment

	globalOperationTimeout       = newDynamicTimeout(10*time.Minute, 5*time.Minute) // default timeout for general ops

 *
 * <p>Key functionalities include:</p>
 * <ul>
 *   <li>Setting the index, query, and size of the request.</li>
 *   <li>Adding tags, roles, fields, kinds, and languages to the request.</li>
 *   <li>Configuring suggestion details, reading converter, normalizer, prefix match weight, match word first, and skip duplicate words options.</li>
 *   <li>Building the query and filter query for the suggestion request.</li>

// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package cmd

import (
	"bytes"
	"context"

                        t.getClass().getCanonicalName(), t.getMessage());
                if (logger.isDebugEnabled()) {
                    logger.debug("Details for failed thumbnail creation.", t);
                }
            } finally {
                if (!created) {
                    updateThumbnailField(thumbnailId, StringUtil.EMPTY);