* **WebSocket** support.
* In-process background tasks.
* Startup and shutdown events.
* Test client built on HTTPX.
* **CORS**, GZip, Static Files, Streaming responses.
* **Session and Cookie** support.
* 100% test coverage.
* 100% type annotated codebase.

## Pydantic features

import okhttp3.internal.http.toHttpDateString
import org.codehaus.mojo.animal_sniffer.IgnoreJRERequirement

/**
 * The header fields of a single HTTP message. Values are uninterpreted strings; use `Request` and
 * `Response` for interpreted headers. This class maintains the order of the header fields within
 * the HTTP message.
 *
 * This class tracks header values line-by-line. A field with multiple comma- separated values on

import org.codelibs.fess.app.web.api.ApiResult;
import org.codelibs.fess.app.web.api.admin.FessApiAdminAction;
import org.codelibs.fess.es.config.exentity.PathMapping;
import org.lastaflute.web.Execute;
import org.lastaflute.web.response.JsonResponse;

import jakarta.annotation.Resource;

public class ApiAdminPathmapAction extends FessApiAdminAction {

    private static final Logger logger = LogManager.getLogger(ApiAdminPathmapAction.class);

import org.codelibs.fess.app.web.api.admin.FessApiAdminAction;
import org.codelibs.fess.es.config.exentity.RelatedContent;
import org.lastaflute.web.Execute;
import org.lastaflute.web.response.JsonResponse;

import jakarta.annotation.Resource;

public class ApiAdminRelatedcontentAction extends FessApiAdminAction {

//	path: 'bucket/' or '/bucket/' => Heal bucket
//	path: 'bucket/object' => Heal object
type healTask struct {
	bucket    string
	object    string
	versionID string
	opts      madmin.HealOpts
	// Healing response will be sent here
	respCh chan healResult
}

// healResult represents a healing result with a possible error
type healResult struct {
	result madmin.HealResultItem
	err    error
}

    "info": {
        "title": "FastAPI",
        "version": "0.1.0"
    },
    "paths": {
        "/items/": {
            "get": {
                "responses": {
                    "200": {
                        "description": "Successful Response",
                        "content": {
                            "application/json": {



...
```

#### Wofür OpenAPI gedacht ist

    "info": {
        "title": "FastAPI",
        "version": "0.1.0"
    },
    "paths": {
        "/items/": {
            "get": {
                "responses": {
                    "200": {
                        "description": "Successful Response",
                        "content": {
                            "application/json": {



...
```

#### Для чого потрібний OpenAPI

import org.codelibs.fess.es.config.exentity.WebConfig;
import org.codelibs.fess.helper.PermissionHelper;
import org.codelibs.fess.util.ComponentUtil;
import org.lastaflute.web.Execute;
import org.lastaflute.web.response.JsonResponse;

import jakarta.annotation.Resource;

/**
 * @author Keiichi Watanabe
 */
public class ApiAdminWebconfigAction extends FessApiAdminAction {

    /**
     * Sent by the server in the Type 2 message to indicate that it is
     * including a Target Information block in the message. The Target
     * Information block is used in the calculation of the NTLMv2 response.
     */
    public static final int NTLMSSP_NEGOTIATE_TARGET_INFO = 0x00800000;

    /**
     * 
     */
    public static final int NTLMSSP_NEGOTIATE_VERSION = 0x2000000;

    /**

{!> ../../docs_src/header_params/tutorial003.py!}
```

////

If you communicate with that *path operation* sending two HTTP headers like:

```
X-Token: foo
X-Token: bar
```

The response would be like:

```JSON
{
    "X-Token values": [
        "bar",
        "foo"
    ]
}
```

## Recap