Barracks SDK for JavaScript

The JavaScript SDK to interact with the Barracks API

Installation

$ npm install barracks-sdk

Usage

Create a Barracks SDK instance:

var Barracks = require('barracks-sdk');

var barracks = new Barracks({
  apiKey: 'Your user API key',
  unitId: 'The unique device identifier'
});

Your user api key you can be found on the Account page of the Barracks application.

Check for an update:

barracks.checkUpdate(currentDeviceVersion, customClientData).then(function (update) {
  if (update) {
    // Do something with the update
  } else {
    // Do something when no updates are available
  }
}).catch(function (err) {
  // Do something with the error (See error handling section)
});

Check for an update and download it:

barracks.checkUpdate(currentDeviceVersion, customClientData).then(function (update) {
  if (update) {
    return update.download();
  }
  return Promise.resolve();
}).then(function (file) {
  if (file) {
    // Do something with the file
  }
}).catch(function (err) {
  // Do something with the error (See error handling section)
});

Check for an update and download it without chaining the Promises:

barracks.checkUpdate(currentDeviceVersion, customClientData).then(function (update) {
  if (update) {
    update.download().then(function (file) {
      // Do something with the file
    }).catch(function (err) {
      // Do something with the download error
    });
  }
}).catch(function (err) {
  // Do something with the error (See error handling section)
});

Check for an update and download it with a single function:

barracks.checkUpdateAndDownload(currentDeviceVersion, customClientData).then(function (file) {
  // Do something with the file
}).catch(function (err) {
  // Do something with the error (See error handling section)
});

Error Handling

All errors returned by the SDK follow the same object format:

{
  type: 'ERROR_TYPE',
  message: 'Details about the error'
}

Error type can be one of the the following:

• REQUEST_FAILED, is returned by both Barracks.checkUpdate() and Barracks.checkUpdateAndDownload() methods if the check update request fails. The error object also contains one additional property requestError that is the Error object returned by the request library.
• UNEXPECTED_SERVER_RESPONSE, is returned by both Barracks.checkUpdate() and Barracks.checkUpdateAndDownload() methods if the HTTP response code is not 200 (a new update is available) or 204 (no update available).
• DOWNLOAD_FAILED, is returned by both Update.download() and Barracks.checkUpdateAndDownload() methods if the download of an update package fails.
• DELETE_FILE_FAILED, is returned by both Update.download() and Barracks.checkUpdateAndDownload() methods if the SDK fail to delete an update package that did not pass the MD5 checksum verification.
• CHECKSUM_VERIFICATION_FAILED, is returned by both Update.download() and Barracks.checkUpdateAndDownload() methods if the MD5 checksum verification of the update package downloaded fails.
• MD5_HASH_CREATION_FAILED, is returned by both Update.download() and Barracks.checkUpdateAndDownload() methods if the SDK is not able to generate the MD5 checksum of the update package downloaded.

Docs & Community

• Website and Documentation
• Github Organization for other official SDKs

License

Apache License, Version 2.0