## 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
* les systèmes d’authentification et d’autorisation

## Streaming (JSON Lines, SSE, bytes)

See [the streaming reference](references/streaming.md) for JSON Lines, Server-Sent Events (`EventSourceResponse`, `ServerSentEvent`), and byte streaming (`StreamingResponse`) patterns.

## Tooling

	stringToSign += scope + "\n"
	canonicalRequestBytes := sha256.Sum256([]byte(canonicalRequest))
	stringToSign += hex.EncodeToString(canonicalRequestBytes[:])
	return stringToSign
}

// getSigningKey hmac seed to calculate final signature.
func getSigningKey(secretKey string, t time.Time, region string, stype serviceType) []byte {
	date := sumHMAC([]byte("AWS4"+secretKey), []byte(t.Format(yyyymmdd)))

            final List<FunctionScoreQueryBuilder.FilterFunctionBuilder> flist = new ArrayList<>();
            flist.add(new FunctionScoreQueryBuilder.FilterFunctionBuilder(ScoreFunctionBuilders.randomFunction()
                    .seed(ComponentUtil.getSystemHelper().getCurrentTimeAsLong())
                    .setField(fessConfig.getIndexFieldDocId())));
            reader.setQuery(QueryBuilders

      or by an individual or Legal Entity authorized to submit on behalf of
      the copyright owner. For the purposes of this definition, "submitted"
      means any form of electronic, verbal, or written communication sent
      to the Licensor or its representatives, including but not limited to
      communication on electronic mailing lists, source code control systems,
      and issue tracking systems that are managed by, or on behalf of, the

### Écrire votre propre code async { #write-your-own-async-code }

Starlette (et **FastAPI**) s’appuie sur [AnyIO](https://anyio.readthedocs.io/en/stable/), ce qui le rend compatible à la fois avec la bibliothèque standard [asyncio](https://docs.python.org/3/library/asyncio-task.html) de Python et avec [Trio](https://trio.readthedocs.io/en/stable/).

        },
        "alphanum_word_filter" : {
          "type" : "alphanum_word",
          "max_token_length" : 20
        },
        "minhash_filter" : {
          "type" : "minhash",
          "seed" : 1,
          "bit" : 2,
          "size" : 64
        },
        "synonym_filter" : {
          "type" : "synonym_graph",
          "synonyms_path": "${fess.dictionary.path}synonym.txt"
        }

  }

  /**
   * Tests equality of {@link Hashing#goodFastHash} instances. This test must be separate from
   * {@link #testSeededHashFunctionEquals} because the parameter to {@code goodFastHash} is a size,
   * not a seed, and because that size is rounded up. Thus, {@code goodFastHash} instances with
   * different parameters can be equal. That fact is a problem for {@code
   * testSeededHashFunctionEquals}.
   */

                    "DH2Q", // Durable handle request V2
                    "DH2C", // Durable handle reconnect V2
                    "ExtA", // Extended attributes
                    "SecD", // Security descriptor
                    "AppI" // App instance ID
            };

            for (String name : contextNames) {
                MockCreateContextRequest context = new MockCreateContextRequest(name);

    }
  }

  /**
   * Returns a Writer that sends all output to the given {@link Appendable} target. Closing the
   * writer will close the target if it is {@link Closeable}, and flushing the writer will flush the
   * target if it is {@link java.io.Flushable}.
   *
   * @param target the object to which output will be sent