如何设置 and.env 文件并让我的代码读取 .env 文件？

Question

I want to setup and discord bot, but I need some help setting up an.env file and modify my bot code to read the .env file. Also, using Heroku to start hosting the bot.

Code for the main.bot.js :

"use strict";
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
    return new (P || (P = Promise))(function (resolve, reject) {
        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
        step((generator = generator.apply(thisArg, _arguments || [])).next());
    });
};
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const discord_js_1 = __importDefault(require("discord.js"));
const builders_1 = require("@discordjs/builders");
const SlashCommand_model_1 = require("./model/SlashCommand.model");
const HelpCommand_command_1 = require("./commands/HelpCommand.command");
const fs_extra_1 = __importDefault(require("fs-extra"));
const BINFlipCommand_command_1 = require("./commands/flip/BINFlipCommand.command");
var client = new discord_js_1.default.Client({ "intents": [discord_js_1.default.Intents.FLAGS.GUILDS, discord_js_1.default.Intents.FLAGS.GUILD_MEMBERS, discord_js_1.default.Intents.FLAGS.GUILD_MESSAGES] });
client.on('ready', () => __awaiter(void 0, void 0, void 0, function* () {
    var helpcommandbuilder = new builders_1.SlashCommandBuilder()
        .setName("help")
        .setDescription("Get the list of commands that Project: Scyll has.");
    var binflipcommandbuilder = new builders_1.SlashCommandBuilder()
        .setName("binflip")
        .setDescription("Finds a BIN snipe on the auction house based on the amount of profit you can make.")
        .addIntegerOption(option => option.setName("profit")
        .setDescription("the amount of profit you would like to make.").setRequired(true));
    SlashCommand_model_1.SlashCommand.CreateSlashCommands([helpcommandbuilder, binflipcommandbuilder]);
}));
client.on('interactionCreate', function (interaction) {
    return __awaiter(this, void 0, void 0, function* () {
        if (!interaction.isCommand())
            return;
        new HelpCommand_command_1.HelpCommand(interaction);
        new BINFlipCommand_command_1.BINFlipCommand(interaction);
    });
});
client.login(process.env.SERVER_BOT_KEY);

Code for my .env file that I tried to make:

SERVER_BOT_KEY=samplebottoken75686
SERVER_CLIENT_ID=sampleclientid

and also need some help fixing the .env thing on this file as well.

"use strict";
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });
}) : (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
    Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
    o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
    if (mod && mod.__esModule) return mod;
    var result = {};
    if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
    __setModuleDefault(result, mod);
    return result;
};
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
    return new (P || (P = Promise))(function (resolve, reject) {
        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
        step((generator = generator.apply(thisArg, _arguments || [])).next());
    });
};
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.SlashCommand = void 0;
const discord_js_1 = require("discord.js");
const axios = __importStar(require("axios"));
const rest_1 = require("@discordjs/rest");
const v9_1 = require("discord-api-types/v9");
const fs_extra_1 = __importDefault(require("fs-extra"));
var token = process.env.SERVER_BOT_KEY;
class SlashCommand {
    constructor(interaction) {
        this.http = axios.default;
        this.interaction = interaction;
        this.command = interaction.commandName;
        this.purple = "#BA55D3";
        this.backtick = "`";
        this.gold = "#d4af37";
        this.red = "#C70039";
    }
    CreateEmbed() {
        return new discord_js_1.MessageEmbed()
            .setAuthor("Project: Scyll", this.interaction.client.user.avatarURL()).setFooter("Project:Scyll 0.1.0").setTimestamp();
    }
    static CreateSlashCommands(commands) {
        return __awaiter(this, void 0, void 0, function* () {
            var clientid = process.env.SERVER_CLIENT_ID;
            yield SlashCommand.REST.put(v9_1.Routes.applicationCommands(clientid), { "body": commands });
        });
    }
}
exports.SlashCommand = SlashCommand;
SlashCommand.REST = new rest_1.REST({ "version": "9" }).setToken(token);

I put in client.login(process.env.SERVER_BOT_KEY); and the bot still doesn't go online. I put “dotenv”: “^14.3.0” in my package.json . I also did it in Heroku, in the Config Vars section.

What am I doing wrong?

Answer 1

If you've updated your code to use process.env.SERVER_BOT_KEY and set a SERVER_BOT_KEY config var on Heroku, your app should work there. Heroku doesn't need dotenv or use an .env file.

This won't be enough locally, though. You have installed dotenv and created your .env file, but it doesn't sound like you've actually imported and used it :

2. As early as possible in your application, import and configure dotenv.

    // index.js require('dotenv').config() console.log(process.env) // remove this after you've confirmed it working

Make sure to require('dotenv').config() in your code.

Ideally, that can be done once in a shared startup file but I can't tell from the code you shared above if you have something like that. That code looks like it was generated by a tool of some kind.

Note that your .env file should not be tracked. Make sure to add it to your .gitignore .