implementation 'org.apache.httpcomponents:httpclient:4.5.13' import android.os.AsyncTask; import org.apache.http.HttpEntity; import org.apache.http.HttpResponse; import org.apache.http.client.methods.HttpGet; import org.apache.http.impl.client.DefaultHttpClient; import org.apache.http.util.EntityUtils; import java.io.IOException; public class HttpAsyncTask extends AsyncTask<String, Void, String> { @Override protected String doInBackground(String... urls) { String response = null; try { DefaultHttpClient httpClient = new DefaultHttpClient(); HttpGet httpGet = new HttpGet(urls[0]); HttpResponse httpResponse = httpClient.execute(httpGet); HttpEntity httpEntity = httpResponse.getEntity(); response = EntityUtils.toString(httpEntity); } catch (IOException e) { e.printStackTrace(); } return response; } @Override protected void onPostExecute(String result) { } } new HttpAsyncTask().execute("http://example.com/api/data");