```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]
<span style="color: green;">INFO</span>:     Started server process [28722]
<span style="color: green;">INFO</span>:     Waiting for application startup.
<span style="color: green;">INFO</span>:     Application startup complete.
```

import com.google.common.cache.LocalCache.ValueReference;
import javax.annotation.CheckForNull;

/**
 * An entry in a reference map.
 *
 * <p>Entries in the map can be in the following states:
 *
 * <p>Valid:
 *
 * <ul>
 *   <li>Live: valid key/value are set
 *   <li>Loading: loading is pending
 * </ul>
 *
 * <p>Invalid:
 *
 * <ul>

public interface PeekingIterator<E extends @Nullable Object> extends Iterator<E> {
  /**
   * Returns the next element in the iteration, without advancing the iteration.
   *
   * <p>Calls to {@code peek()} should not change the state of the iteration, except that it
   * <i>may</i> prevent removal of the most recent element via {@link #remove()}.
   *
   * @throws NoSuchElementException if the iteration has no more elements according to {@link

     */

    public static final int ERROR_SUCCESS = 0;
    public static final int ERROR_ACCESS_DENIED = 5;
    public static final int ERROR_REQ_NOT_ACCEP = 71;
    public static final int ERROR_BAD_PIPE = 230;
    public static final int ERROR_PIPE_BUSY = 231;
    public static final int ERROR_NO_DATA = 232;
    public static final int ERROR_PIPE_NOT_CONNECTED = 233;
    public static final int ERROR_MORE_DATA = 234;

@ElementTypesAreNonnullByDefault
public interface LoadingCache<K, V> extends Cache<K, V>, Function<K, V> {

  /**
   * Returns the value associated with {@code key} in this cache, first loading that value if
   * necessary. No observable state associated with this cache is modified until loading completes.
   *
   * <p>If another call to {@link #get} or {@link #getUnchecked} is currently loading the value for

```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]
<span style="color: green;">INFO</span>:     Started server process [28722]
<span style="color: green;">INFO</span>:     Waiting for application startup.
<span style="color: green;">INFO</span>:     Application startup complete.
```

///

## Zusätzliche Information hinzufügen

Sie können zusätzliche Information in `Field`, `Query`, `Body`, usw. deklarieren. Und es wird im generierten JSON-Schema untergebracht.

Sie werden später mehr darüber lernen, wie man zusätzliche Information unterbringt, wenn Sie lernen, Beispiele zu deklarieren.

## Prerequisites

Install Dex by following [Dex Getting Started Guide](https://dexidp.io/docs/getting-started/)

### Start Dex

```
~ ./bin/dex serve dex.yaml
time="2020-07-12T20:45:50Z" level=info msg="config issuer: http://127.0.0.1:5556/dex"
time="2020-07-12T20:45:50Z" level=info msg="config storage: sqlite3"
time="2020-07-12T20:45:50Z" level=info msg="config static client: Example App"

musician.io
// Submitted by Matthias Merkel <******@****.***>
novecore.site

// staticland : https://static.land
// Submitted by Seth Vincent <******@****.***>
static.land
dev.static.land
sites.static.land

// Storebase : https://www.storebase.io
// Submitted by Tony Schirmer <******@****.***>
storebase.store

            false, false, "keyword", 0, 0, null, null, false, null, null, null, null, null, false);
    protected final ColumnInfo _columnState = cci("state", "state", null, null, String.class, "state", null, false, false, false, "keyword",
            0, 0, null, null, false, null, null, null, null, null, false);