51Degrees Device Detection Node.js  4.3Newer Version 4.4

Developer Documentation

Introduction

This project contains 51Degrees Device Detection engines that can be used with the Pipeline API.

The Pipeline is a generic web request intelligence and data processing solution with the ability to add a range of 51Degrees and/or custom plug ins (Engines)

Device detection

Device detection can be performed 'on-premise' using a local data file or via the 51Degrees cloud service.

These options all use the same evidence and property names so can be swapped out as needed.

Packages

• fiftyone.devicedetection.cloud - A Node.js engine which retrieves engine results by consuming data from the 51Degrees cloud service. A cloud builder is also included to build a pipeline for device detection cloud engine.
• fiftyone.devicedetection.onpremise - A Node.js engine which retrieves engine results by consuming data from the 51Degrees data file. A on-premise builder is also included to build a pipeline for device detection on-premise engine.
• fiftyone.devicedetection.shared - A Node.js module which contains shared functionality to build cloud and on-premise engines.
• fiftyone.devicedetection - A Node.js pipeline builder which build pipeline for either cloud or on-premise engine based on the input.

Installation

Using NPM call:

npm install fiftyone.devicedetection

npm install fiftyone.devicedetection.cloud

npm install fiftyone.devicedetection.onpremise

Or to install from this repository run:

npm install fiftyone.devicedetection/

npm install fiftyone.devicedetection.cloud/

npm install fiftyone.devicedetection.onpremise/

To install fiftyone.devicedetection and fiftyone.devicedetection.onpremise from this repository, you need to build the native binaries first. The step is described in On-Premise section.

On-Premise

When running on-premise, a local Hash V4.1 data file is required.

Hash: A large binary file populated with User-Agent signatures allowing very fast detection speeds.

51Degrees provides multiple options, some of which support automatic updates through the Pipeline API.

If the module is installed directly from Git then the binaries are also required. These binaries are native module which contains the core engine of device detection. Below are the steps to build these binaries:

• Pre-requisites
  • Install Node.js.
  • Install node-gyp by running.
    • npm install node-gyp --global
  • Install C build tools:
    • Windows:
      • You will need either Visual Studio 2019 or the C++ Build Tools installed.
        • Minimum platform toolset version is v142
        • Minimum Windows SDK version is 10.0.18362.0

If you have Visual Studio Code, you'll still need to install the build tools from the link above.

• Linux/MacOS:
  • You will need a C++ compiler which supports C++11. The compiler will and other build tools will be selected by CMake automatically based on your environment.

Build steps:

• Navigate to fiftyone.devicedetection.onpremise.
• Rename the binding.51d to binding.gyp
• Run npm install
  • Alternatively this step can be replaced by the followings:
    • Create a folder named build.
    • Run node-gyp configure
    • Run node-gyp build
  • Platform specific:
    • Windows
      • By default this will look for Visual Studio 2019 and a minimum Windows SDK version 10.0.18362.0.
      • This can be overwritten by include --msvs_version=[VS version] and --msvs_target_platform_version=[Windows SDK Version] as part of the npm install command.
        • NOTE: This is not recommended. Also, some time the latest SDK version is selected instead, as observed in environment with multiple SDK versions installed. Thus, only install the correct Visual Studio version and the minimum required Windows SDK version as recommended.
• This will build the FiftyOneDeviceDetectionHashV4.node under build/Release folder.
• Copy the FiftyOneDeviceDetectionHashV4.node to build directory (which is one level up) and rename it using the following convention.
  • Windows:
    • FiftyOneDeviceDetectionHashV4-win32-[ Node version ].node
      • e.g. FiftyOneDeviceDetectionHashV4-win32-10.node for Node 10.
  • Linux:
    • FiftyOneDeviceDetectionHashV4-linux-[ Node version ].node
      • e.g. FiftyOneDeviceDetectionHashV4-linux-10.node for Node 10.
  • MacOS:
    • FiftyOneDeviceDetectionHashV4-darwin-[ Node version ].node
      • e.g. FiftyOneDeviceDetectionHashV4-darwin-10.node for Node 10.
  • Please see Support Version for Node versions that we support.
  • At this point, other build files and folders can be removed apart from the binaries file *.node.

If this module is installed as a package from npm and is intended to be used on Windows, make sure to install the C++ Redistributable latest 14.2* version or above.

Cloud

The device detection cloud engine makes use of the 51Degrees cloud API. As such there is no data file to maintain, processing will always be performed using the latest data available.

Examples

For details of how to run the examples, please refer to run examples.

Cloud

On-Premise

Tests

In this repository, there are tests for the examples. You will need to install jest to run them:

npm install jest --global

You will also need to install any required packages for the examples in the Examples section.

Add a 51Degrees cloud resource key in the fiftyone.devicedetection/package.json file for cloud tests. You can obtain a resource key from the 51Degrees Cloud Configurator and assign it to the environment variable RESOURCE_KEY in your test environment.

There are other environment variables that you will also need to set in your test environment before running all tests:

• TEST_SUPER_RESOURCE_KEY: This key contains all SetHeader* properties.
• TEST_PLATFORM_RESOURCE_KEY: This key contains only the SetHeaderPlatform* property but no other SetHeader properties.
• TEST_HARDWARE_RESOURCE_KEY: This key contains only the SetHeaderHardware* property but no other SetHeader properties.
• TEST_BROWSER_RESOURCE_KEY: This key contains only the SetHeaderBrowser* property but no other SetHeader properties.
• TEST_NO_SETHEADER_RESOURCE_KEY: This key contains no SetHeader properties.

To run the tests, execute the following command in the root directory or a sub-module directory:

npm test

Native code updates

Process for rebuilding SWIG interfaces following an update to the device detection cxx code (This is only intended to be run by 51Degrees developers internally):

1. Ensure Swig is installed.
   1. At the time when this README was updated, the current stable version of Swig did not support new changes in Node 12 and above.
   2. The Swig version being used is built from the following branch.
      1. https://github.com/yegorich/swig/tree/pr/new-node-fixes.
      2. There had been an active Pull Request created to merge the changes to the main Swig master branch.
      3. Once the Pull Request is completed, the consequent Swig releases should be used.
2. Update the device-detection-cxx submodule to reference the relevant commit.
3. From terminal, navigate to fiftyone.pipeline.devicedetection and run: a) swig -c++ -javascript -node hash_node.i
4. Commit changes to repository.
5. Run the 'Build Device Detection Binaries for Node.js' Azure CI Pipeline.
6. Copy the produced artifacts into the fiftyone.pipeline.devicedetection/build directory.
7. Commit changes to repository.