# Features { #features }

## FastAPI features { #fastapi-features }

**FastAPI** gives you the following:

### Based on open standards { #based-on-open-standards }

* [**OpenAPI**](https://github.com/OAI/OpenAPI-Specification) for API creation, including declarations of <dfn title="also known as: endpoints, routes">path</dfn> <dfn title="also known as HTTP methods, as POST, GET, PUT, DELETE">operations</dfn>, parameters, request bodies, security, etc.

		metadata = make(map[string]string, 5)
	}

	metadata[MetaAlgorithm] = sealedKey.Algorithm
	metadata[MetaIV] = base64.StdEncoding.EncodeToString(sealedKey.IV[:])
	metadata[MetaSealedKeyKMS] = base64.StdEncoding.EncodeToString(sealedKey.Key[:])
	if len(ctx) > 0 {
		b, _ := ctx.MarshalText()
		metadata[MetaContext] = base64.StdEncoding.EncodeToString(b)
	}

		Metadata: map[string]string{
			MetaIV: base64.StdEncoding.EncodeToString(make([]byte, 32)), MetaAlgorithm: SealAlgorithm,
			MetaSealedKeyS3: base64.StdEncoding.EncodeToString(make([]byte, 64)), MetaKeyID: "key-1",
			MetaDataEncryptionKey: ".MzJieXRlc2xvbmdzZWNyZXRrZXltdXN0cHJvdmlkZWQ=", // invalid base64
		},
		DataKey: []byte{}, KeyID: "key-1", SealedKey: SealedKey{},
	}, // 8
	{

Vous verrez des exemples de cela dans les prochains chapitres, à propos des bases de données relationnelles et NoSQL, de la sécurité, etc.

## Compatibilité **FastAPI** { #fastapi-compatibility }

La simplicité du système d’injection de dépendances rend **FastAPI** compatible avec :

* toutes les bases de données relationnelles
* les bases de données NoSQL
* les packages externes
* les API externes

     * Downloads a log file by its encoded ID.
     *
     * @param id the Base64 encoded filename of the log file to download
     * @return ActionResponse containing the log file stream
     */
    @Execute
    @Secured({ ROLE, ROLE + VIEW })
    public ActionResponse download(final String id) {
        final String filename = sanitizeFilename(new String(Base64.getDecoder().decode(id), StandardCharsets.UTF_8));

package com.google.common.cache;

import static com.google.common.base.Preconditions.checkNotNull;
import static com.google.common.util.concurrent.Futures.immediateFuture;

import com.google.common.annotations.GwtCompatible;
import com.google.common.annotations.GwtIncompatible;
import com.google.common.annotations.J2ktIncompatible;
import com.google.common.base.Function;
import com.google.common.base.Supplier;

//
// 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 (
	"context"
	"encoding/base64"
	"errors"
	"fmt"
	"io"
	"os"
	"path"
	"sort"
	"strconv"
	"strings"
	"sync"
	"time"

	"github.com/klauspost/readahead"
	"github.com/minio/minio-go/v7/pkg/set"

import javax.net.ssl.SSLSocketFactory
import javax.net.ssl.X509TrustManager
import okhttp3.OkHttpClient
import okhttp3.internal.platform.Platform
import okhttp3.internal.readFieldOrNull

/**
 * Base Android reflection based SocketAdapter for the built in Android SSLSocket.
 *
 * It's assumed to always be present with known class names on Android devices, so we build

import org.apache.logging.log4j.Logger;
import org.codelibs.core.lang.StringUtil;
import org.codelibs.fess.app.service.UserService;
import org.codelibs.fess.app.web.base.FessSearchAction;
import org.codelibs.fess.app.web.base.login.LocalUserCredential;
import org.codelibs.fess.app.web.login.LoginAction;
import org.codelibs.fess.mylasta.action.FessMessages;
import org.codelibs.fess.util.ComponentUtil;

	// provider URL), we hash and encode it to base64 here. This is needed
	// because there will be a policy mapping stored on drives whose
	// filename is this parentUser: therefore, it needs to have only valid
	// filename characters and needs to have bounded length.
	{
		h := sha256.New()
		h.Write([]byte("openid:" + subFromToken + ":" + issFromToken))
		bs := h.Sum(nil)
		cred.ParentUser = base64.RawURLEncoding.EncodeToString(bs)
	}