If you want to read more about these encodings and form fields, head to the <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Methods/POST" class="external-link" target="_blank"><abbr title="Mozilla Developer Network">MDN</abbr> web docs for <code>POST</code></a>.

///

/// warning

Se você quiser ler mais sobre essas codificações e campos de formulário, vá para a <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Methods/POST" class="external-link" target="_blank"><abbr title="Mozilla Developer Network">MDN</abbr> web docs para <code>POST</code></a>.

///

/// warning | Aviso

    string.getChars(0, len, strCopy, 0);

    char[] array = new char[len * count];

    int strCopyLen = len;
    int pos = 0;
    while (count != 0) {
      if ((count & 1) != 0) {
        System.arraycopy(strCopy, 0, array, pos, strCopyLen);
        pos += strCopyLen;
      }
      count >>= 1;
      if (count != 0) {
        System.arraycopy(strCopy, 0, strCopy, strCopyLen, strCopyLen);

    return response.body().string();
  }
}
```


Post to a Server
----------------

This program posts data to a service. [Full source][post_example].

```java
public static final MediaType JSON = MediaType.get("application/json");

OkHttpClient client = new OkHttpClient();

String post(String url, String json) throws IOException {
  RequestBody body = RequestBody.create(json, JSON);

The user of your API (an external developer) will create an invoice in your API with a POST request.

Then your API will (let's imagine):

* Send the invoice to some customer of the external developer.
* Collect the money.
* Send a notification back to the API user (the external developer).
    * This will be done by sending a POST request (from *your API*) to some *external API* provided by that external developer (this is the "callback").

O usuário da sua API (um desenvolvedor externo) criará uma fatura em sua API com uma solicitação POST.

Então sua API irá (vamos imaginar):

* Enviar uma solicitação de pagamento para o desenvolvedor externo.
* Coletar o dinheiro.
* Enviar a notificação de volta para o usuário da API (o desenvolvedor externo).

            int[] positions = { 0, 2, 4, 8, 10, 15 };

            for (int pos : positions) {
                // Clear buffer
                buffer = new byte[20];
                SMBUtil.writeInt2(4, buffer, pos);
                SMBUtil.writeInt2(0, buffer, pos + 2);

                // When
                int bytesRead = response.readBytesWireFormat(buffer, pos);

                // Then

                traverseFileSystem(rootDir, file, handler);
            } else {
                final int pos = FileUtil.getCanonicalPath(rootDir).length();
                final String filePath = FileUtil.getCanonicalPath(file);
                final String resourcePath = filePath.substring(pos + 1).replace('\\', '/');
                final InputStream is = InputStreamUtil.create(file);
                try {

        final String keyProp = NAME_PREFIX + id;
        requestBody.put(KEY_PROPERTY, keyProp);
        requestBody.put("segmentation", "segment");
        requestBody.put("reading", "reading");
        requestBody.put("pos", "pos");
        return requestBody;
    }

    @Override
    protected Map<String, Object> getUpdateMap() {
        final Map<String, Object> updateMap = new HashMap<>();

          @Subscribe
          public void accept(String str) {
            holder.set(str);
            deliveries.incrementAndGet();
          }
        });

    String EVENT = "Hello!";
    bus.post(EVENT);

    assertEquals("Only one event should be delivered.", 1, deliveries.get());
    assertEquals("Correct string should be delivered.", EVENT, holder.get());
  }