A pkgcloud storage example with Rackspace CloudFiles

sdk-example.js

var pkgcloud = require('pkgcloud'),
    config = require('../config').getConfig(),
    filed = require('filed'),
    readline = require('readline');

var rl = readline.createInterface({
  input: process.stdin,
  output: process.stdout
});

// Setup some variables for use in our examples
var containerName = 'pkgcloud-example',
    filePath = '/Users/kenn5998/src/scratch/',
    fileName = 'hello.txt';

// create our client for the DFW region
var client = pkgcloud.providers.rackspace.storage.createClient({
  username: config.username,
  apiKey: config.apiKey,
  region: 'DFW'
});

// convenience method to exit on error if found
function handleErr(err) {
  if (err) {
    console.dir(err);
    process.exit(1);
    return;
  }
}

//
// start our example with create container
//
//
createContainer();

// creates a container, and if successfull contintues to uploadFile
function createContainer() {
  client.createContainer(containerName, function(err, container) {
    handleErr(err);

    console.log('Created container: ' + container.name);
    uploadFile(container);
  });
}

// uploads a file, and if successful enables CDN on the container
function uploadFile(container) {
  client.upload({
    container: container,
    remote: fileName,
    stream: filed(filePath + fileName)
  }, function(err) {
    handleErr(err);

    console.log('Uploaded file: ' + filePath + fileName);
    enableCdnForContainer(container);
  });
}

// enables CDN on the container, if successful downloads the file
function enableCdnForContainer(container) {
  container.enableCdn(function(err, container) {
    handleErr(err);

    console.log('Enabled CDN on container: ' + container.name);
    console.log('CDN Url: ' + container.cdnUri);
    downloadFile(container);
  });
}

// downloads the file. If successful prompts before deleting
function downloadFile(container) {
  client.download({
    container: container,
    local: filePath + fileName + '.download',
    remote: fileName
  }, function(err) {
    handleErr(err);

    console.log('Downloaded file: ' + filePath + fileName + '.download');

    // prompt the user before deleting, so we can see them in the CP
    rl.question('\nPress enter to delete container and object...', function () {
      rl.close();
      deleteObject(container);
    });
  });
}

// delete the file
function deleteObject(container) {
  client.removeFile(container, fileName, function(err) {
    handleErr(err);

    console.log('Deleted remote object: ' + fileName);
    deleteContainer(container);
  });
}

// delete the container
function deleteContainer(container) {
  client.destroyContainer(container, function(err) {
    handleErr(err);

    console.log('Deleted container: ' + container.name);
  });
}