### Pequenos erros são tratados automaticamente { #small-errors-automatically-handled }

Ao criar APIs da web com FastAPI, se houver um erro em nosso código, o FastAPI normalmente o conterá na única solicitação que acionou o erro. 🛡

Você verá a resposta JSON como:

```JSON
{"item_id": 5, "q": "somequery"}
```

Você acabou de criar uma API que:

* Recebe requisições HTTP nas _rotas_ `/` e `/items/{item_id}`.
* Ambas _rotas_ fazem operações `GET` (também conhecido como _métodos_ HTTP).

    assertThrows(UnsupportedOperationException.class, () -> unmod.merge(4, "four", (k, v) -> v));
    assertThrows(UnsupportedOperationException.class, () -> unmod.clear());

    /* UnsupportedOperationException on indirect modifications. */
    BiMap<String, Number> inverse = unmod.inverse();
    assertThrows(UnsupportedOperationException.class, () -> inverse.put("four", 4));

 *       defined this way, but enough to live with.
 *   <li>If you override {@link #setUp} or {@link #tearDown}, make sure to invoke {@code
 *       super.setUp} and {@code super.tearDown} within them. These methods are used to clear and
 *       check for thread assertion failures.
 *   <li>All delays and timeouts must use one of the constants {@code SHORT_DELAY_MS}, {@code

   *
   * @since 22.0
   */
  public long approximateElementCount() {
    long bitSize = bits.bitSize();
    long bitCount = bits.bitCount();

    /*
     * Each insertion is expected to reduce the # of clear bits by a factor of
     * `numHashFunctions/bitSize`. So, after n insertions, expected bitCount is `bitSize * (1 - (1 -
     * numHashFunctions/bitSize)^n)`. Solving that for n, and approximating `ln x` as `x - 1` when x

  }

  private Throwable popLoggedThrowable() {
    List<LogRecord> logRecords = logHandler.getStoredLogRecords();
    assertThat(logRecords).hasSize(1);
    LogRecord logRecord = logRecords.get(0);
    logHandler.clear();
    return logRecord.getThrown();
  }

  private void checkNothingLogged() {
    assertThat(logHandler.getStoredLogRecords()).isEmpty();
  }

  private void checkLoggedCause(Throwable t) {

    long total = 0;
    while (from.read(buf) != -1) {
      Java8Compatibility.flip(buf);
      while (buf.hasRemaining()) {
        total += to.write(buf);
      }
      Java8Compatibility.clear(buf);
    }
    return total;
  }

  /** Max array length on JVM. */
  private static final int MAX_ARRAY_LEN = Integer.MAX_VALUE - 8;

                    if (failureMessage.length() > 0) {
                        failureBuf.append(response.buildFailureMessage()).append('\n');
                    }
                }
                bufferedList.clear();
            }
        });
        if (!bufferedList.isEmpty()) {
            final BulkResponse response = doInsertAll(bufferedList, opType);
            if (response.hasFailures()) {

   *
   * <p>The temporary directory is created with permissions restricted to the current user or, in
   * the case of Android, the current app. If that is not possible (as is the case under the very
   * old Android Ice Cream Sandwich release), then this method throws an exception instead of
   * creating a directory that would be more accessible. (This behavior is new in Guava 32.0.0.

      // k is really large; just do a straightforward sorted-copy-and-sublist
      ArrayList<E> list = Lists.newArrayList(iterator);
      sort(list, this);
      if (list.size() > k) {
        list.subList(k, list.size()).clear();
      }
      list.trimToSize();
      return unmodifiableList(list);
    } else {
      TopKSelector<E> selector = TopKSelector.least(k, this);
      selector.offerAll(iterator);