ckn.backend/server/EnvironmentVariableMiddleware.js

CKN Framework for Backend

import {Middleware} from "../core/Middleware.js";
import {File} from 'ckn.stream';
import dotenv from 'dotenv';
import express from "express";

class EnvironmentVariableMiddleware extends Middleware {
    constructor() {
        super();
        this.priority = 0;
        this.envPath = "development.env";
    }

    changeEnvPath(value) {
        this.envPath = value;
        return this;
    }

    async onStartingServer(backend, next) {
        this.envPath = process.env.NODE_ENV ? process.env.NODE_ENV + ".env" : this.envPath;
        let envPath = File.join(backend.rootPhysicalPath, this.envPath);
        if (envPath.toFile().isExist) {
            dotenv.config({path: envPath});
            this.log.info(`[OK] Env file '${envPath}' is loading.`);
        }
        next();
    }
}

export {EnvironmentVariableMiddleware}