# Advanced Middleware { #advanced-middleware }

In the main tutorial you read how to add [Custom Middleware](../tutorial/middleware.md) to your application.

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 }

    return if (address is InetSocketAddress) address.hostName else address.toString()
  }

  companion object {
    val logger: Logger = Logger.getLogger(Http2Server::class.java.name)

    @JvmStatic
    fun main(args: Array<String>) {
      if (args.size != 1 || args[0].startsWith("-")) {
        println("Usage: Http2Server <base directory>")
        return
      }
      val server =
        Http2Server(

import okhttp3.survey.types.Client
import okhttp3.survey.types.SuiteId
import okio.FileSystem
import okio.Path.Companion.toPath
import org.conscrypt.Conscrypt

@Suppress("ktlint:standard:property-naming")
suspend fun main() {
  val includeConscrypt = false

  val client =
    OkHttpClient
      .Builder()
      .cache(Cache(FileSystem.SYSTEM, "build/okhttp_cache".toPath(), 100_000_000))
      .build()

    else:
      line_str += ('Couldn\'t parse the bazel command, '
                   'check inside the build log instead')
    line_str += f'\n{url}\n'
    print(line_str)
    i += 1


def main():
  args = parse_args()
  verbose = args.verbose
  build_log_path = os.path.expandvars(args.build_log)
  links = parse_log(build_log_path, verbose=verbose)

  if args.xml_out_path:

The defaults that will be compiled into a main package
are reported by the command:

	go list -f '{{.DefaultGODEBUG}}' my/main/package

Only differences from the base Go toolchain defaults are reported.

When testing a package, `//go:debug` lines in the `*_test.go`
files are treated as directives for the test's main package.
In any other context, `//go:debug` lines are ignored by the toolchain;

```python
from main import app
```

Si tu código estuviera estructurado así:

```
.
├── backend
│   ├── main.py
│   ├── __init__.py
```

Entonces pondrías el `entrypoint` como:

```toml
[tool.fastapi]
entrypoint = "backend.main:app"
```

lo cual sería equivalente a:

```python
from backend.main import app
```

        if (getContainer().hasComponent(ProjectBuilder.class, "test")) {
            projectBuilder = getContainer().lookup(ProjectBuilder.class, "test");
        } else {
            // default over to the main project builder...
            projectBuilder = getContainer().lookup(ProjectBuilder.class);
        }
    }

    protected ProjectBuilder getProjectBuilder() {
        return projectBuilder;
    }

 * without relying on groovy closures and sharing common logic for tasks created by the BwcSetup plugin already.
 */
public class BwcSetupExtension {

    private static final String MINIMUM_COMPILER_VERSION_PATH = "src/main/resources/minimumCompilerVersion";
    private static final Version BUILD_TOOL_MINIMUM_VERSION = Version.fromString("7.14.0");
    private final Project project;

**FastAPI** provides the same `starlette.responses` as `fastapi.responses` just as a convenience for you, the developer. But most of the available responses come directly from Starlette.

///

### `Response` { #response }

The main `Response` class, all the other responses inherit from it.

You can return it directly.

It accepts the following parameters:

* `content` - A `str` or `bytes`.
* `status_code` - An `int` HTTP status code.

     */
    public Map<String, String[]> fields = new HashMap<>();

    /**
     * Map of advanced search conditions.
     */
    public Map<String, String[]> as = new HashMap<>();

    /**
     * The main search query string.
     */
    @Size(max = 1000)
    public String q;

    /**
     * The sort parameter for search results.
     */
    @Size(max = 1000)
    public String sort;

    /**