Download a Binary REST Response into BinData

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Demonstrates Rest.FullRequestNoBodyBd, which sends a request with no body and stores the binary response body in a BinData.

The file paths are relative to the application's current working directory. Absolute paths may also be used. Supply the paths appropriate to your own environment.

import { BinData, Rest } from '@chilkat/react-native'

async function chilkatExample() {
  const rest = new Rest();
  const bTls = true;
  const bAutoReconnect = true;
  try {
    await rest.connectAsync('example.com', 443, bTls, bAutoReconnect);
  } catch {
    console.log(rest.lastErrorText);
    return;
  }

  // The file paths are relative to the application's current working directory.  Absolute paths
  // may also be used.  Supply the paths appropriate to your own environment.

  // FullRequestNoBodyBd sends a request with no body and stores the binary response body in a
  // BinData.  This is appropriate when the response is binary, such as an image or file download.
  const bdResponse = new BinData();
  try {
    await rest.fullRequestNoBodyBdAsync('GET', '/api/images/1', bdResponse);
  } catch {
    console.log(rest.lastErrorText);
    return;
  }

  try {
    bdResponse.writeFile('qa_output/image.png');
  } catch {
    console.log('Failed to save the response body.');
    return;
  }

  console.log(`Downloaded ${bdResponse.numBytes} bytes.`);
}