OPC-UA-Server

A guide to deploy an OPC UA Server on an Android device using NodeJS.

Installation

To deploy an OPC-UA Server on Android with NodeJS runtime follow the section Sequence Of Instructions down below.

Tests has been done on Android 7.1 Nougat with a Sony Xperia Z5 Premium device.

Requirements

Make sure to have at least 5 GB of disk space free, it will be necessary to install g++, needed to compile deasync library that rely on C++. Also you will have to install the app Termux.

Sequence of Instructions

Make sure to have Termux installed. Then enter Termux and start typing these commands:

1. pkg install openssl-tool g++ make python2 nodejs.
2. alias python=python2.
3. npm install node-gyp.
4. Modify the following file .node-gyp/<<version>>/include/node/common.gypi according to the following section.
5. npm install node-opcua or if you prefer, enter in the cloned repository and then npm install.

Changes to common.gypi

As stated into the following URL https://blog.akehir.com/2017/05/building-node-sass-libsass-python.html, is necessary to change the compiler flags from [ '-fPIE', -pie' ] to ['-fPIC'] as showed below. So start browsing your common.gypi file: you will find two entries to change, one for the Release and one for Debug configuration.

      ` ['OS == "android"', {
         'cflags': [ '-fPIC' ],
         'ldflags': [ '-fPIC' ]
      }], `

Start the Server

To start the Server just type into Termux node src/index.js