node-red-contrib-discovergy-meter/standalone.js

Allows to work with a Discovergy Smart Meter (Electricity only) within Node RED flows

const CasaCorrently = require("./app.js");
const fs = require("fs");

const fileExists = async path => !!(await fs.promises.stat(path).catch(e => false));

const boot = async function() {
  let config = {};
  if(typeof process.env.PORT !== 'undefined') {
    port = process.env.PORT;
  }
  // UUID Persistence
  if((process.argv.length == 3)&&(await fileExists(process.argv[2]))) {
    config = JSON.parse(fs.readFileSync(process.argv[2]));
  } else
  if(await fileExists("./config.json")) {
    config = JSON.parse(fs.readFileSync("./config.json"));
  } else
  if(await fileExists("./sample_config.json")) {
    config = JSON.parse(fs.readFileSync("./sample_config.json"));
  }
  if(typeof config.uuid == 'undefined') {
    config.uuid = Math.random(); // Due to node js incompatibility with nanoid or uuid this is a bad fix
    config.uuid = (""+config.uuid).substring(2) + (Math.random());
  }
  const main = await CasaCorrently();
  await main.server(config);
};

boot();