<!-- https://github.com/google/error-prone/blob/f8e33bc460be82ab22256a7ef8b979d7a2cacaba/docs/installation.md#jdk-16 -->
              <!-- TODO(cpovirk): Use .mvn/jvm.config instead (per
                   https://errorprone.info/docs/installation#maven). -->
              <arg>-J--add-exports=jdk.compiler/com.sun.tools.javac.api=ALL-UNNAMED</arg>

              <!-- https://github.com/google/error-prone/blob/f8e33bc460be82ab22256a7ef8b979d7a2cacaba/docs/installation.md#jdk-16 -->
              <!-- TODO(cpovirk): Use .mvn/jvm.config instead (per
                   https://errorprone.info/docs/installation#maven). -->
              <arg>-J--add-exports=jdk.compiler/com.sun.tools.javac.api=ALL-UNNAMED</arg>

Y quieres tener una forma para que el frontend se autentique con el backend, usando un **username** y **password**.

Podemos usar **OAuth2** para construir eso con **FastAPI**.

Pero vamos a ahorrarte el tiempo de leer la larga especificación completa solo para encontrar esos pequeños fragmentos de información que necesitas.

Usemos las herramientas proporcionadas por **FastAPI** para manejar la seguridad.

## Cómo se ve { #how-it-looks }

		ID string `json:"id"`
	}{ID: id})
	if err != nil {
		writeErrorResponseJSON(ctx, w, toAPIError(ctx, err), r.URL)
		return
	}

	writeSuccessResponseJSON(w, b)
	// Notify peers to load rebalance.bin and start rebalance routine if they happen to be
	// participating pool's leader node
	globalNotificationSys.LoadRebalanceMeta(ctx, true)
}

```

Asegúrate de siempre usar la **forma exec** para garantizar que FastAPI pueda cerrarse de manera adecuada y que [los eventos de lifespan](../advanced/events.md){.internal-link target=_blank} sean disparados.

Puedes leer más sobre esto en las <a href="https://docs.docker.com/reference/dockerfile/#shell-and-exec-form" class="external-link" target="_blank">documentación de Docker para formas de shell y exec</a>.

            semantics.
            <p>In general, this is a properties format: {@code <name>value</name>} with per-toolchain
            defined properties names.
          </description>
        </field>
      </fields>
      <codeSegments>
        <codeSegment>
          <version>1.2.0+</version>

     * This stream class is unbuffered. Therefore this method will always
     * return 0 for streams connected to regular files. However, a
     * stream created from a Named Pipe this method will query the server using a
     * "peek named pipe" operation and return the number of available bytes
     * on the server.
     */
    @Override
    public int available() throws IOException {
        return 0;
    }

    /**

    private byte[] charsToBytes(char[] chars) {
        if (chars == null) {
            return null;
        }

        // Use UTF-8 encoding
        byte[] bytes = new byte[chars.length * 3]; // Max 3 bytes per char in UTF-8
        int byteIndex = 0;

        for (char c : chars) {
            if (c < 0x80) {
                bytes[byteIndex++] = (byte) c;
            } else if (c < 0x800) {

 * bits.
 *
 * We split each code point into a 14-bit prefix and a 7-bit suffix. All code points with the same
 * prefix are called a 'section'. There are 128 code points per section.
 *
 * Ranges Data (32,612 bytes)
 * ==========================
 *
 * Each entry is 4 bytes, and represents a _range_ of code points that all share a common 14-bit

In particular, when running on **Kubernetes** you will probably **not** want to use workers and instead run **a single Uvicorn process per container**, but I'll tell you about it later in that chapter.

///

## Multiple Workers { #multiple-workers }

You can start multiple workers with the `--workers` command line option:

//// tab | `fastapi`