Events
======

Events allow you to capture metrics on your application’s HTTP calls. Use events to monitor:

 * The size and frequency of the HTTP calls your application makes. If you’re making too many calls, or your calls are too large, you should know about it!
 * The performance of these calls on the underlying network. If the network’s performance isn’t sufficient, you need to either improve the network or use less of it.

### EventListener

pkg net/http, func NewCrossOriginProtection() *CrossOriginProtection #73626
pkg net/http, method (*CrossOriginProtection) AddInsecureBypassPattern(string) #73626
pkg net/http, method (*CrossOriginProtection) AddTrustedOrigin(string) error #73626
pkg net/http, method (*CrossOriginProtection) Check(*Request) error #73626
pkg net/http, method (*CrossOriginProtection) Handler(Handler) Handler #73626

Wenn Sie nun zu:

```
http://127.0.0.1:8000/items/foo?short=1
```

oder

```
http://127.0.0.1:8000/items/foo?short=True
```

oder

```
http://127.0.0.1:8000/items/foo?short=true
```

oder

```
http://127.0.0.1:8000/items/foo?short=on
```

oder

```
http://127.0.0.1:8000/items/foo?short=yes
```

```console
$ fastapi dev

<span style="color: green;">INFO</span>:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
```

</div>

然後開啟位於 [http://127.0.0.1:8000/docs](http://127.0.0.1:8000/docs) 的文件。

你會看到主應用的自動 API 文件，只包含它自己的*路徑操作*：

<img src="/img/tutorial/sub-applications/image01.png">

接著，開啟子應用程式的文件：[http://127.0.0.1:8000/subapi/docs](http://127.0.0.1:8000/subapi/docs)。

//
// 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"
	"encoding/json"
	"io"
	"net/http"
	"strconv"
	"strings"

	"github.com/minio/madmin-go/v3"
	"github.com/minio/minio/internal/config"
	"github.com/minio/minio/internal/config/etcd"

 * <http://www.apache.org/>.
 *
 */
package okhttp.regression.compare

import org.apache.hc.client5.http.async.methods.SimpleHttpRequests
import org.apache.hc.client5.http.async.methods.SimpleHttpResponse
import org.apache.hc.client5.http.impl.async.HttpAsyncClients
import org.apache.hc.core5.concurrent.FutureCallback
import org.apache.hc.core5.http.ProtocolVersion
import org.junit.Assert

// 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 (
	"crypto/subtle"
	"encoding/json"
	"net/http"

	"github.com/minio/madmin-go/v3"
	"github.com/minio/minio/internal/auth"
	"github.com/minio/minio/internal/kms"
	"github.com/minio/minio/internal/logger"

  ~ limitations under the License.
  -->
<ruleset xmlns="http://codenarc.org/ruleset/1.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://codenarc.org/ruleset/1.0 http://codenarc.org/ruleset-schema.xsd"
         xsi:noNamespaceSchemaLocation="http://codenarc.org/ruleset-schema.xsd">
    <!--<ruleset-ref path='rulesets/basic.xml'>-->

}

func writeErrorResponse(w http.ResponseWriter, err error) {
	w.WriteHeader(http.StatusBadRequest)
	json.NewEncoder(w).Encode(map[string]string{
		"error": fmt.Sprintf("%v", err),
	})
}

type Result struct {
	Result bool `json:"result"`
}

func mainHandler(w http.ResponseWriter, r *http.Request) {
	body, err := io.ReadAll(r.Body)
	if err != nil {

     * Checks if the request matches this API manager.
     * @param request The HTTP servlet request.
     * @return True if the request matches, false otherwise.
     */
    boolean matches(HttpServletRequest request);

    /**
     * Processes the request through this API manager.
     * @param request The HTTP servlet request.
     * @param response The HTTP servlet response.
     * @param chain The filter chain.