public static String dec_utf8 ( byte[] src, int si, int slim ) throws IOException {
        char[] uni = new char[slim - si];
        int ui, ch;

        for ( ui = 0; si < slim && ( ch = src[ si++ ] & 0xFF ) != 0; ui++ ) {
            if ( ch < 0x80 ) {
                uni[ ui ] = (char) ch;
            }
            else if ( ( ch & 0xE0 ) == 0xC0 ) {
                if ( ( slim - si ) < 2 ) {
                    break;

    }
    public static String dec_utf8( byte[] src, int si, int slim ) throws IOException {
        char[] uni = new char[slim - si];
        int ui, ch;

        for( ui = 0; si < slim && (ch = src[si++] & 0xFF) != 0; ui++ ) {
            if( ch < 0x80 ) {
                uni[ui] = (char)ch;
            } else if((ch & 0xE0) == 0xC0 ) {
                if((slim - si) < 2 ) {
                    break;
                }

# Pierwsze kroki

Najprostszy plik FastAPI może wyglądać tak:

```Python
{!../../../docs_src/first_steps/tutorial001.py!}
```

Skopiuj to do pliku `main.py`.

Uruchom serwer:

<div class="termy">

```console
$ uvicorn main:app --reload

<span style="color: green;">INFO</span>:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
<span style="color: green;">INFO</span>:     Started reloader process [28720]

When you install `fastapi` it comes these standard dependencies.

## `fastapi-slim`

If you don't want the extra standard optional dependencies, install `fastapi-slim` instead.

When you install with:

```bash
pip install fastapi
```

...it includes the same code and dependencies as:

```bash
pip install "fastapi-slim[standard]"
```

The standard extra dependencies are the ones mentioned above.

<div class="termy">

```console
$ pip install "uvicorn[standard]"

---> 100%
```

</div>

## Przykład

### Stwórz

* Utwórz plik o nazwie `main.py` z:

```Python
from typing import Union

from fastapi import FastAPI

app = FastAPI()


@app.get("/")
def read_root():
    return {"Hello": "World"}

When you install `fastapi` it comes these standard dependencies.

## `fastapi-slim`

If you don't want the extra standard optional dependencies, install `fastapi-slim` instead.

When you install with:

```bash
pip install fastapi
```

...it includes the same code and dependencies as:

```bash
pip install "fastapi-slim[standard]"
```

The standard extra dependencies are the ones mentioned above.

    void tryClose() {
        synchronized( LOCK ) {

            /* Yes, there is the potential to drop packets
             * because we might close the socket during a
             * request. However the chances are slim and the
             * retry code should ensure the overall request
             * is serviced. The alternative complicates things
             * more than I think is worth it.
             */

* Podzielić się artykułem, filmem lub podcastem, który stworzyłeś lub znalazłeś na temat FastAPI, <a href="https://github.com/tiangolo/fastapi/edit/master/docs/en/data/external_links.yml" class="external-link" target="_blank">edytując ten plik</a>.
    * Upewnij się, że dodajesz swój link na początku odpowiedniej sekcji.
* Pomóc w [tłumaczeniu dokumentacji](contributing.md#translations){.internal-link target=_blank} na Twój język.

        synchronized ( this.LOCK ) {

            /*
             * Yes, there is the potential to drop packets
             * because we might close the socket during a
             * request. However the chances are slim and the
             * retry code should ensure the overall request
             * is serviced. The alternative complicates things
             * more than I think is worth it.
             */

// for the first time.
TF_Library* TF_LoadPluggableDeviceLibrary(const char* library_filename,
                                          TF_Status* status) {
#if defined(IS_MOBILE_PLATFORM) || defined(IS_SLIM_BUILD)
  status->status = tensorflow::errors::Unimplemented(
      "PluggableDevice plugin functionality is not supported on mobile");
  return nullptr;
#else
  TF_Library* lib_handle = new TF_Library;