import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;

public class Test {
    public static void main(String[] args) {
        sendMobileOtp("9742065455");
    }

    public static void sendMobileOtp(String mobileNumber) {

        String smsKey = "53432a8cdc814601";
        String url = "https://whatsapp.adznetworkmedia.om/restapi/requestjson.php";

        HttpClient client = HttpClient.newHttpClient();
        String jsonBody = String.format("{\"country_code\": \"%s\", \"mobile\": \"%s\", \"wid\": \"%s\", \"type\": \"%s\", \"bodyValues\": \"%s\"}",
                "+91", mobileNumber, "11069", "text", "{1:otp}");

        HttpRequest request = HttpRequest.newBuilder()
                .uri(URI.create(url))
                .header("Content-Type", "application/json")
                .header("Authorization", "Bearer " + smsKey)
                .POST(HttpRequest.BodyPublishers.ofString(jsonBody))
                .build();

        HttpResponse<String> response = null;
        try {
            response = client.send(request, HttpResponse.BodyHandlers.ofString());
        } catch (Exception e) {
            System.out.println(e.getMessage());
        }
        System.out.println("Response Status Code: " + response.statusCode());
        System.out.println("Response Body: " + response.body());
    }
}