React Native

Example: Http.ResumeDownload method

Demonstrates the ResumeDownload method. React Native

import { FileAccess, Http } from '@chilkat/react-native'

async function chilkatExample() {
  let success = false;

  const http = new Http();
  http.keepResponseBody = true;

  // To demonstrate resuming a download, we've created a file on the chilkatsoft.com
  // web server that contains the first 82,379 bytes of the full  279,658 bytes of the hamlet.xml file.

  // We'll first download the partial file, and pretend it was a previous incomplete attempt to download the entire file.
  const localFilePath = 'c:/temp/qa_output/hamlet.xml';
  try {
    await http.downloadAsync('https://www.chilkatsoft.com/testData/hamlet_partial.xml', localFilePath);
  } catch {
    console.log(http.lastErrorText);
    return;
  }

  // Download the remainder of hamlet.xml.
  success = true;
  try {
    await http.resumeDownloadAsync('https://www.chilkatsoft.com/testData/hamlet.xml', localFilePath);
  } catch {
    success = false;
  }
  const statusCode = http.lastStatus;
  if (!success) {
    if (statusCode === 0) {
      // Unable to either send the request or get the response.
      console.log(http.lastErrorText);
    } else {
      // We got a response, but the status code was not in the 200s
      console.log(`Response status code: ${statusCode}`);
      // Examine the response body.
      console.log('Response body:');
      console.log(http.lastResponseBody);
    }

    console.log('Download failed.');
  } else {
    console.log(`Download success, response status = ${statusCode}`);
  }

  // The hamlet.xml file should be 279,658 bytes
  const fac = new FileAccess();
  console.log(`size of hamlet.xml: ${fac.fileSize(localFilePath)}`);

  console.log('Success.');
}