torrents.csv/server/ui/set_env.js

require('dotenv').config();
const fs = require('fs');

exports.setEnv =  function() {
  let endpoint = (process.env.TORRENTS_CSV_ENDPOINT) ? process.env.TORRENTS_CSV_ENDPOINT : "http://0.0.0.0:8080";
  let env_line = `export const endpoint = '${endpoint}';`;
  fs.writeFile("src/env.ts", env_line, function (err) {
    console.log("Wrote src/env.ts:");
    console.log("\t" + env_line);
  });
}