And then you also read how to handle [CORS with the `CORSMiddleware`](../tutorial/cors.md).

In this section we'll see how to use other middlewares.

## Adding ASGI middlewares { #adding-asgi-middlewares }

As **FastAPI** is based on Starlette and implements the <abbr title="Asynchronous Server Gateway Interface">ASGI</abbr> specification, you can use any ASGI middleware.

 * (or {@link FluentFuture#transform(com.google.common.base.Function, Executor)
 * FluentFuture.transform}), but you will often find it easier to use a framework. Frameworks
 * automate the process, often adding features like monitoring, debugging, and cancellation.
 * Examples of frameworks include:
 *
 * <ul>
 *   <li><a href="https://dagger.dev/producers.html">Dagger Producers</a>
 * </ul>
 *

    @Test
    public void testAddInitialSettings() {
        // Test adding single setting
        SuggestSettingsBuilder result = builder.addInitialSettings("key1", "value1");
        assertEquals(builder, result); // Test method chaining
        assertEquals(1, builder.initialSettings.size());
        assertEquals("value1", builder.initialSettings.get("key1"));

        // Test adding multiple settings
        builder.addInitialSettings("key2", 100);

 *
 * <p>Multimaps are commonly used in places where a {@code Map<K, Collection<V>>} would otherwise
 * have appeared. The differences include:
 *
 * <ul>
 *   <li>There is no need to populate an empty collection before adding an entry with {@link #put
 *       put}.
 *   <li>{@code get} never returns {@code null}, only an empty collection.
 *   <li>A key is contained in the multimap if and only if it maps to at least one value. Any

n.com/blogs/storage/replicating-existing-objects-between-s3-buckets/) can be enabled by passing `existing-objects` as a value to `--replicate` flag while adding or editing a replication rule.

Once existing object replication is enabled, all objects or object prefixes that satisfy the replication rules and were created prior to adding replication configuration OR while replication rules were disabled will be synced to the target cluster. Depending on the number of previously existing objects,...

This directory contains templates that work around gradle-ospackage-plugin
trying to be helpful and adding templates for your os packaging scripts. We
have relatively nice scripts already so we just override the templates to be

In that case, they will be applied to all the *path operations* in the application:

{* ../../docs_src/dependencies/tutorial012_an_py310.py hl[17] *}


And all the ideas in the section about [adding `dependencies` to the *path operation decorators*](dependencies-in-path-operation-decorators.md) still apply, but in this case, to all of the *path operations* in the app.

    if (FORBIDDEN_DEPENDENCIES.contains(artifactName)) {
      throw new GradleException("Dependency '${artifactName}' on configuration '${configuration.name}' is not allowed. " +
        "If it is needed as a transitive depenency, try adding it to the runtime classpath")
    }
  }
}

subprojects {
  if (project.path.startsWith(':test:fixtures:') || project.path.equals(':build-tools')) {
    // fixtures are allowed to use whatever dependencies they want...

import org.apache.maven.api.annotations.Experimental;
import org.apache.maven.api.cli.Options;

/**
 * Defines the options specific to the Maven Shell tool.
 * This interface extends the general {@link Options} interface, adding shell-specific configuration options.
 *
 * @since 4.0.0
 */
@Experimental

        when:
        newBase.addInterface(stablePublicInterface)

        then:
        noViolation(rule)
    }

    def 'adding an #type interface can be reported'() {
        given:
        newBase.addInterface(interfaces[type])

        when:
        Violation violation = rule.maybeViolation(apiClass)

        then: