import com.foursquare.fhttp.Fhttp;
import java.util.HashMap;
import java.util.Map;
public class Example {
public static void main(String[] args) {
Fhttp client = Fhttp.create();
Map<String, String> params = new HashMap<>();
params.put("key1", "value1");
params.put("key2", "value2");
client.get("http://example.com/api", params, (response, exception) -> {
if (exception != null) {
exception.printStackTrace();
} else {
System.out.println(response.body());
}
});
}
}