#### 작동

"작동(Operation)"은 HTTP "메소드" 중 하나를 나타냅니다.

다음 중 하나이며:

* `POST`
* `GET`
* `PUT`
* `DELETE`

...흔히 사용되지 않는 것들도 있습니다:

* `OPTIONS`
* `HEAD`
* `PATCH`
* `TRACE`

HTTP 프로토콜에서는 이러한 "메소드"를 하나(또는 이상) 사용하여 각 경로와 통신할 수 있습니다.

---

API를 설계할 때 일반적으로 특정 행동을 수행하기 위해 특정 HTTP 메소드를 사용합니다.

일반적으로 다음과 같습니다:

		}

		return minio.New(driver.endpoint, &minio.Options{
			Creds:     mcreds,
			Secure:    globalIsTLS,
			Transport: globalRemoteFTPClientTransport,
		})
	}

	// ok == true - at this point

	if ui.Credentials.IsTemp() {
		// Temporary credentials are not allowed.
		return nil, errAuthentication
	}

	return minio.New(driver.endpoint, &minio.Options{

// DeleteOptions represents the disk level delete options available for the APIs
type DeleteOptions struct {
	BaseOptions
	Recursive bool `msg:"r"`
	Immediate bool `msg:"i"`
	UndoWrite bool `msg:"u"`
	// OldDataDir of the previous object
	OldDataDir string `msg:"o,omitempty"` // old data dir used only when to revert a rename()
}

// BaseOptions represents common options for all Storage API calls
type BaseOptions struct{}

        // other java files (as is with some Kotlin projects)
        !source.matching {
            exclude("**/package-info.java")
        }.isEmpty
    }

    options {
        this as StandardJavadocDocletOptions

        encoding = "utf-8"
        docEncoding = "utf-8"
        charSet = "utf-8"

        // Enable all javadoc warnings, except for:

import com.google.common.annotations.GwtIncompatible;
import com.google.common.annotations.J2ktIncompatible;
import com.google.j2objc.annotations.J2ObjCIncompatible;
import java.nio.file.SecureDirectoryStream;

/**
 * Options for use with recursive delete methods ({@link MoreFiles#deleteRecursively} and {@link
 * MoreFiles#deleteDirectoryContents}).
 *
 * @since 21.0 (but only since 33.4.0 in the Android flavor)
 * @author Colin Decker
 */

                            <div class="collapse <c:if test="${!empty name || !empty urls || !empty description}">show</c:if>" id="listSearchForm">
                                <la:form action="/admin/webconfig/">
                                    <div class="form-group row">
                                        <label for="name" class="col-sm-2 text-sm-right col-form-label"><la:message

import org.codelibs.fess.es.user.cbean.ca.bs.BsUserCA;
import org.codelibs.fess.es.user.cbean.cq.UserCQ;
import org.codelibs.fess.es.user.cbean.cq.bs.BsUserCQ;
import org.dbflute.cbean.ConditionQuery;
import org.opensearch.action.search.SearchRequestBuilder;
import org.opensearch.index.query.QueryBuilder;

/**
 * @author ESFlute (using FreeGen)
 */
public class BsUserCB extends EsAbstractConditionBean {

                            </c:if>
                        </ol>
                    </div>
                </div>
            </div>
        </div>
        <section class="content">
            <la:form action="/admin/crawlinginfo/">
                <la:hidden property="crudMode"/>
                <c:if test="${crudMode==4}">
                    <la:hidden property="id"/>
                </c:if>
                <div class="row">

		HTTPStatusCode: http.StatusForbidden,
	},
	ErrSTSMissingParameter: {
		Code:           "MissingParameter",
		Description:    "A required parameter for the specified action is not supplied.",
		HTTPStatusCode: http.StatusBadRequest,
	},
	ErrSTSInvalidParameterValue: {
		Code:           "InvalidParameterValue",

即使它们都在 `localhost` 中，但是它们使用不同的协议或者端口，所以它们都是不同的「源」。

## 步骤

假设你的浏览器中有一个前端运行在 `http://localhost:8080`，并且它的 JavaScript 正在尝试与运行在 `http://localhost` 的后端通信（因为我们没有指定端口，浏览器会采用默认的端口 `80`）。

然后，浏览器会向后端发送一个 HTTP `OPTIONS` 请求，如果后端发送适当的 headers 来授权来自这个不同源（`http://localhost:8080`）的通信，浏览器将允许前端的 JavaScript 向后端发送请求。

为此，后端必须有一个「允许的源」列表。

在这种情况下，它必须包含 `http://localhost:8080`，前端才能正常工作。

## 通配符

也可以使用 `"*"`（一个「通配符」）声明这个列表，表示全部都是允许的。