um _framework_  (ou conjunto de ferramentas) para aplicações _web_ que forneça validação de dados, serialização e documentação, como Flask-apispec, NestJS, Molten, etc. _Frameworks_ com validação de dados automática, serialização e documentação integradas....

If it doesn't receive it, it returns an HTTP 401 "Unauthorized" error.

And returns a header `WWW-Authenticate` with a value of `Basic`, and an optional `realm` parameter.

That tells the browser to show the integrated prompt for a username and password.

Then, when you type that username and password, the browser sends them in the header automatically.

## Simple HTTP Basic Auth { #simple-http-basic-auth }

#### Tipos genéricos

Estos tipos que toman parámetros de tipo en corchetes se llaman **Tipos Genéricos** o **Genéricos**, por ejemplo:

//// tab | Python 3.10+

Puedes usar los mismos tipos integrados como genéricos (con corchetes y tipos dentro):

* `list`
* `tuple`
* `set`
* `dict`

Y lo mismo que con Python 3.8, desde el módulo `typing`:

* `Union`

     * Get directory lease manager from tree handle
     */
    private static DirectoryLeaseManager getDirectoryLeaseManager(SmbTreeHandleImpl th) {
        try {
            // For now, return null since we need to integrate with the session properly
            // This will be implemented when the session integration is complete
            log.debug("Directory lease manager integration not yet complete");
            return null;

app.add_middleware(UnicornMiddleware, some_config="rainbow")
```

`app.add_middleware()` recebe uma classe de middleware como o primeiro argumento e quaisquer argumentos adicionais a serem passados para o middleware.

## Middlewares Integrados

**FastAPI** inclui vários middlewares para casos de uso comuns, veremos a seguir como usá-los.

/// note | Detalhes Técnicos

            if (pos != -1) {
                buf.replace(pos, pos + 1, "dd");
            }
        }
        return new String(buf);
    }

    /**
     * {@link Iterator} that iterates over {@link DateFormat}s corresponding to the styles held by the locale.
     *
     * @author koichik
     */
    protected static class DateFormatIterator implements Iterator<DateFormat> {

And your database models can use any other names you want.

But for the login *path operation*, we need to use these names to be compatible with the spec (and be able to, for example, use the integrated API documentation system).

The spec also states that the `username` and `password` must be sent as form data (so, no JSON here).

### `scope` { #scope }

import java.io.Reader;
import java.util.Iterator;
import java.util.NoSuchElementException;

import org.codelibs.core.exception.ClUnsupportedOperationException;

/**
 * An {@link Iterator} that iterates over lines read from a {@link BufferedReader}.
 * <p>
 * Usage example:
 * </p>
 *
 * <pre>
 * import static org.codelibs.core.io.LineIterator.*;
 *
 * BufferedReader reader = ...;

  /**
   * Returns {@code true} if a character sequence contains at least one matching BMP character.
   * Equivalent to {@code !matchesNoneOf(sequence)}.
   *
   * <p>The default implementation iterates over the sequence, invoking {@link #matches} for each
   * character, until this returns {@code true} or the end is reached.
   *
   * @param sequence the character sequence to examine, possibly empty

But keep in mind that, as everything is handled in memory, in a single list, it will only work while the process is running, and will only work with a single process.

If you need something easy to integrate with FastAPI but that is more robust, supported by Redis, PostgreSQL or others, check <a href="https://github.com/encode/broadcaster" class="external-link" target="_blank">encode/broadcaster</a>.

///