Set environment variables programtically

env.js

const hostname = 'sso.sisoul.kr'
// const env = require('env.json');
const env = {
    "sso.sisoul.kr": {
        "node_env": "production",
        "api_server": "https://api.sisoul.kr"
    },
    "sso.dev.sisoul.kr": {
        "node_env": "development",
        "api_server": "https://api.dev.sisoul.kr"
    }
}

let keys = Object.keys(env);
let key = keys.find(e => e === hostname);
const obj = env.hasOwnProperty(key) ? env[key] : undefined;

keys = Object.keys(obj);
keys.forEach(e => {
    const value = obj[e];
    process.env[e.toUpperCase()] = value;
})

console.log(process.env)