## Servidores ASGI

Vamos nos aprofundar um pouco mais em detalhes.

FastAPI utiliza um padrão para construir frameworks e servidores web em Python chamado <abbr title="Asynchronous Server Gateway Interface">ASGI</abbr>. FastAPI é um framework web ASGI.

import com.google.common.collect.TestExceptions.SomeUncheckedException;
import com.google.common.collect.testing.IteratorTester;
import java.util.Iterator;
import java.util.NoSuchElementException;
import junit.framework.AssertionFailedError;
import junit.framework.TestCase;
import org.jspecify.annotations.NullMarked;
import org.jspecify.annotations.Nullable;

/** Tests for {@link AbstractSequentialIterator}. */
@GwtCompatible
@NullMarked

 */

package com.google.common.collect;

import static com.google.common.truth.Truth.assertThat;

import com.google.common.annotations.GwtCompatible;
import junit.framework.AssertionFailedError;
import junit.framework.TestCase;
import org.jspecify.annotations.NullMarked;

/**
 * Unit test for {@link ComparisonChain}.
 *
 * @author Kevin Bourrillion
 */
@GwtCompatible
@NullMarked

### <a href="https://www.django-rest-framework.org/" class="external-link" target="_blank">Django REST Framework</a>

Фреймворк Django REST был создан, как гибкий инструментарий для создания веб-API на основе Django.

DRF использовался многими компаниями, включая Mozilla, Red Hat и Eventbrite.

* Dies ermöglicht auch automatische **Client-Code-Generierung** in vielen Sprachen.

### Automatische Dokumentation

Interaktive API-Dokumentation und erkundbare Web-Benutzeroberflächen. Da das Framework auf OpenAPI basiert, gibt es mehrere Optionen, zwei sind standardmäßig vorhanden.

* This also allows using automatic **client code generation** in many languages.

### Automatic docs { #automatic-docs }

Interactive API documentation and exploration web user interfaces. As the framework is based on OpenAPI, there are multiple options, 2 included by default.

import com.google.common.annotations.GwtCompatible;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import junit.framework.AssertionFailedError;
import junit.framework.TestCase;

/**
 * Unit test for {@link Helpers}.
 *
 * @author Chris Povirk
 */
@GwtCompatible
public class HelpersTest extends TestCase {
  public void testNullsBeforeB() {

import com.google.common.annotations.GwtCompatible;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import junit.framework.AssertionFailedError;
import junit.framework.TestCase;

/**
 * Unit test for {@link Helpers}.
 *
 * @author Chris Povirk
 */
@GwtCompatible
public class HelpersTest extends TestCase {
  public void testNullsBeforeB() {

_major_api_version = 2


# Load all plugin libraries from site-packages/tensorflow-plugins if we are
# running under pip.
# TODO(gunan): Find a better location for this code snippet.
from tensorflow.python.framework import load_library as _ll
from tensorflow.python.lib.io import file_io as _fi

# Get sitepackages directories for the python installation.
_site_packages_dirs = []
if _site.ENABLE_USER_SITE and _site.USER_SITE is not None:

---

FastAPI è un web framework moderno e veloce (a prestazioni elevate) che serve a creare API con Python 3.6+ basato sulle annotazioni di tipo di Python.

Le sue caratteristiche principali sono:

* **Velocità**: Prestazioni molto elevate, alla pari di **NodeJS** e **Go** (grazie a Starlette e Pydantic). [Uno dei framework Python più veloci in circolazione](#performance).