}
                } else {
                    logger.warn("Failed to send {} to {}. HTTP Status is {}. {}", body, url, response.getHttpStatusCode(),
                            response.getContentAsString());
                }
            } catch (final IOException e) {
                logger.warn("Failed to send {} to {}.", body, url, e);
            }
        }));
    }

    /**

    @Test
    public void test_Get() {
        Curl.get("https://www.codelibs.org/").execute(response -> {
            final String content = response.getContentAsString();
            logger.info(content);
            assertTrue(content.length() > 0);
        }, e -> {
            logger.log(Level.SEVERE, "error", e);
            fail();
        });
    }

    @Test

                                .header("Accept", "application/json")
                                .executeSync()) {
    System.out.println("Status: " + response.getHttpStatusCode());
    System.out.println(response.getContentAsString());
}
```

### Asynchronous request

```java
import org.codelibs.curl.Curl;

Curl.post("https://api.example.com/items")
    .body("{\"name\":\"item1\"}")

    /**
     * Gets the content of the response as a string.
     *
     * @return the content as a string.
     * @throws CurlException if an error occurs while accessing the content.
     */
    public String getContentAsString() {
        final byte[] bytes = new byte[4096];
        try (BufferedInputStream bis = new BufferedInputStream(getContentAsStream());
                ByteArrayOutputStream baos = new ByteArrayOutputStream()) {