---

## Install FastAPI { #install-fastapi }

The first step is to install FastAPI.

Make sure you create a [virtual environment](../virtual-environments.md){.internal-link target=_blank}, activate it, and then **install FastAPI**:

<div class="termy">

```console
$ pip install "fastapi[standard]"

---> 100%
```

            pass  # pragma: no cover
    assert e.value.code == status.WS_1000_NORMAL_CLOSURE


def websocket_middleware(middleware_func):
    """
    Helper to create a Starlette pure websocket middleware
    """

    def middleware_constructor(app):
        @functools.wraps(app)
        async def wrapped_app(scope, receive, send):
            if scope["type"] != "websocket":

                buildReportTab("Performance", "performance-test-results.zip!report/index.html")
            }
        }

        specificBuildTypes =
            stage.specificBuilds.map {
                it.create(model, stage, FlakyTestStrategy.EXCLUDE)
            }
        specificBuildTypes.forEach(this::buildType)

        performanceTests =

      object : DeferredSocketAdapter.Factory {
        override fun matchesSocket(sslSocket: SSLSocket): Boolean = sslSocket.javaClass.name.startsWith("$packageName.")

        override fun create(sslSocket: SSLSocket): SocketAdapter = build(sslSocket.javaClass)
      }
  }

            try (Writer writer = Files.newBufferedWriter(resumeProperties)) {
                properties.store(writer, null);
            }
        } catch (IOException e) {
            String message = "Could not create " + RESUME_PROPERTIES_FILENAME + " file.";
            throw new BuildResumptionPersistenceException(message, e);
        }
    }

    private Properties convertToProperties(final BuildResumptionData buildResumptionData) {

# Cookie Parameter Models { #cookie-parameter-models }

If you have a group of **cookies** that are related, you can create a **Pydantic model** to declare them. 🍪

This would allow you to **re-use the model** in **multiple places** and also to declare validations and metadata for all the parameters at once. 😎

/// note

This is supported since FastAPI version `0.115.0`. 🤓

///

/// tip

Inconsistency in spelling conventions can lead to several issues:

* **Confusion for users and contributors**: Mixed spellings (e.g., "color" and "colour", "initialize" and "initialise") in the codebase create confusion about which variant to use
* **Harder code search and refactoring**: Searching for identifiers, method names, or documentation becomes more difficult when multiple spellings exist for the same concept

        "index": false
      },
      "content_minhash_bits": {
        "type": "keyword",
        "index": false
      },
      "content_length": {
        "type": "long"
      },
      "created": {
        "type": "date",
        "format": "date_optional_time"
      },
      "timestamp": {
        "type": "date",
        "format": "date_optional_time"
      },
      "expires": {

//
// All objects are encrypted with an unique and randomly generated 'ObjectKey'.
// The ObjectKey itself is never stored in plaintext. Instead it is only stored
// in a sealed from. The sealed 'ObjectKey' is created by encrypting the 'ObjectKey'
// with an unique key-encryption-key. Given the correct key-encryption-key the
// sealed 'ObjectKey' can be unsealed and the object can be decrypted.
//
// ## SSE-C
//

        assertEquals(5, negotiationDifferentSizes.getResponseRaw().length);
    }

    @Test
    @DisplayName("Test multiple instances do not interfere")
    void testMultipleInstances() {
        // Create another instance with different data
        SmbNegotiationRequest anotherRequest = mock(SmbNegotiationRequest.class);
        SmbNegotiationResponse anotherResponse = mock(SmbNegotiationResponse.class);