refactor(config): use znv to parse and validate env variable

package.json

@@ -30,7 +30,8 @@
     "fastify": "^4.23.2",
     "midtrans-node-client": "^0.0.6",
     "telegraf": "^4.14.0",
-    "xendit-node": "^3.2.0"
+    "xendit-node": "^3.2.0",
+    "znv": "^0.4.0"
   },
   "devDependencies": {
     "@typescript-eslint/eslint-plugin": "^6.7.4",

src/config/config.ts

@@ -1,23 +1,34 @@
-export default {
-  botDomain: process.env.BOT_DOMAIN as string,
-  port: (process.env.PORT || 3000) as number,
-  botToken: process.env.BOT_TOKEN as string,
-  nodeEnv: process.env.NODE_ENV as string,
-  adminId: process.env.ADMIN_ID as string,
-  scraperAPIKey: process.env.SCRAPER_API_KEY as string,
-  databaseUrl: process.env.DATABASE_URL as string,
-  databaseAuthToken: process.env.DATABASE_AUTH_TOKEN as string,
-  xenditSecret: process.env.XENDIT_SECRET as string,
-  midtransServerKey: process.env.MIDTRANS_SERVER_KEY as string,
-  midtransClientKey: process.env.MIDTRANS_CLIENT_KEY as string,
-  message: {
-    start: `Selamat datang di bot *KBBI*
+import { parseEnv, port, z } from 'znv'
 
-Dengan bot ini kalian dapat mencari pengertian dari suatu kata dalam KBBI. Kalian hanya perlu mengirim sebuah kata kepada bot ini, maka bot ini akan mengirim definisi dari kata Tersebut.
+export const {
+  BOT_DOMAIN,
+  PORT,
+  BOT_TOKEN,
+  NODE_ENV,
+  ADMIN_ID,
+  DATABASE_URL,
+  DATABASE_AUTH_TOKEN,
+  MIDTRANS_SERVER_KEY,
+  MIDTRANS_CLIENT_KEY,
+} = parseEnv(process.env, {
+  BOT_DOMAIN: z.string().url().optional(),
+  PORT: port().default(3000),
+  BOT_TOKEN: z.string().min(1),
+  NODE_ENV: z.enum(['production', 'development']).default('development'),
+  ADMIN_ID: z.number().int().positive(),
+  DATABASE_URL: z.string().min(1),
+  DATABASE_AUTH_TOKEN: z.string().optional(),
+  MIDTRANS_SERVER_KEY: z.string().min(1),
+  MIDTRANS_CLIENT_KEY: z.string().min(1),
+})
 
-Data dari bot ini diambil dari situs resmi KBBI melalui metode _Web Scraping_ dengan *Node.js*, *Telegraf*, dan *Cheerio*.
+export const message = {
+  start: `Selamat datang di bot *KBBI*
 
-Untuk pertanyaan lebih lanjut, silakan hubungi @tfkhdyt.`,
-    help: 'Untuk menggunakan bot ini, kalian hanya perlu mengirimkan kata yang ingin kalian cari kepada bot ini.\nUntuk pertanyaan lebih lanjut, silakan hubungi @tfkhdyt.',
-  },
+  Dengan bot ini kalian dapat mencari pengertian dari suatu kata dalam KBBI. Kalian hanya perlu mengirim sebuah kata kepada bot ini, maka bot ini akan mengirim definisi dari kata Tersebut.
+  
+  Data dari bot ini diambil dari situs resmi KBBI melalui metode _Web Scraping_ dengan *Node.js*, *Telegraf*, dan *Cheerio*.
+  
+  Untuk pertanyaan lebih lanjut, silakan hubungi @tfkhdyt.`,
+  help: 'Untuk menggunakan bot ini, kalian hanya perlu mengirimkan kata yang ingin kalian cari kepada bot ini.\nUntuk pertanyaan lebih lanjut, silakan hubungi @tfkhdyt.',
 }

src/db/sqlite/index.ts

@@ -2,11 +2,11 @@ import { createClient } from '@libsql/client'
 import { drizzle } from 'drizzle-orm/libsql'
 import { migrate } from 'drizzle-orm/libsql/migrator'
 
-import config from '../../config/config.js'
+import { DATABASE_AUTH_TOKEN, DATABASE_URL } from '../../config/config.js'
 
 const client = createClient({
-  url: config.databaseUrl,
-  authToken: config.databaseAuthToken,
+  url: DATABASE_URL,
+  authToken: DATABASE_AUTH_TOKEN,
 })
 export const db = drizzle(client)
 export type DB = typeof db

src/db/sqlite/migrate.ts

@@ -2,12 +2,15 @@ import { createClient } from '@libsql/client'
 import { drizzle } from 'drizzle-orm/libsql'
 import { migrate } from 'drizzle-orm/libsql/migrator'
 
-import config from '../../config/config.js'
+import {
+  DATABASE_AUTH_TOKEN,
+  DATABASE_URL,
+  NODE_ENV,
+} from '../../config/config.js'
 
 const client = createClient({
-  url: config.databaseUrl,
-  authToken:
-    config.nodeEnv === 'production' ? config.databaseAuthToken : undefined,
+  url: DATABASE_URL,
+  authToken: NODE_ENV === 'production' ? DATABASE_AUTH_TOKEN : undefined,
 })
 const db = drizzle(client)
 

src/handlers/callback.handler.ts

@@ -1,6 +1,6 @@
 import { FastifyReply, FastifyRequest } from 'fastify'
 
-import config from '../config/config.js'
+import { ADMIN_ID } from '../config/config.js'
 import { bot } from '../lib/telegraf.js'
 import { increaseCredits } from '../repositories/user.repository.js'
 import { PaymentBody } from '../types/paymentBody.js'
@@ -25,7 +25,7 @@ export const callbackHandler = async (
         `Topup sejumlah ${amount} saldo melalui "${paymentChannel.toUpperCase()}" telah berhasil! Terima kasih telah menggunakan layanan kami`,
       ),
       bot.telegram.sendMessage(
-        config.adminId,
+        ADMIN_ID,
         `Topup sejumlah ${amount} saldo melalui "${paymentChannel.toUpperCase()}" telah berhasil!`,
       ),
     ])

src/lib/midtrans.ts

@@ -1,9 +1,13 @@
 import { MidtransClient } from 'midtrans-node-client'
 
-import config from '../config/config.js'
+import {
+  MIDTRANS_CLIENT_KEY,
+  MIDTRANS_SERVER_KEY,
+  NODE_ENV,
+} from '../config/config.js'
 
 export const snap = new MidtransClient.Snap({
-  isProduction: config.nodeEnv === 'production',
-  serverKey: config.midtransServerKey,
-  clientKey: config.midtransClientKey,
+  isProduction: NODE_ENV === 'production',
+  serverKey: MIDTRANS_SERVER_KEY,
+  clientKey: MIDTRANS_CLIENT_KEY,
 })

src/lib/telegraf.ts

@@ -1,6 +1,6 @@
 import { Telegraf } from 'telegraf'
 
-import config from '../config/config.js'
+import { BOT_TOKEN } from '../config/config.js'
 import { MyContext } from '../types/context.js'
 
-export const bot = new Telegraf<MyContext>(config.botToken)
+export const bot = new Telegraf<MyContext>(BOT_TOKEN)

src/lib/xendit.ts

@@ -1,7 +1,7 @@
-import { Invoice } from 'xendit-node'
+// import { Invoice } from 'xendit-node'
 
-import config from '../config/config.js'
+// import config from '../config/config.js'
 
-export const xenditClient = new Invoice({
-  secretKey: config.xenditSecret,
-})
+// export const xenditClient = new Invoice({
+//   secretKey: config.xenditSecret,
+// })

src/main.ts

@@ -3,7 +3,7 @@ import 'dotenv/config.js'
 import fastify from 'fastify'
 import { message } from 'telegraf/filters'
 
-import config from './config/config.js'
+import { BOT_DOMAIN, message as msg, NODE_ENV, PORT } from './config/config.js'
 import { callbackHandler } from './handlers/callback.handler.js'
 import { invoiceHandler } from './handlers/invoice.handler.js'
 import { saldoHandler } from './handlers/saldo.handler.js'
@@ -20,23 +20,23 @@ const server = fastify()
 server.get('/', () => 'Hello world')
 server.post('/receive_callback', callbackHandler)
 
-bot.start((ctx) => ctx.replyWithMarkdown(config.message.start))
-bot.help((ctx) => ctx.replyWithMarkdown(config.message.help))
+bot.start((ctx) => ctx.replyWithMarkdown(msg.start))
+bot.help((ctx) => ctx.replyWithMarkdown(msg.help))
 
 bot.use(checkUserMiddleware)
 bot.command('saldo', saldoHandler)
 bot.command('topup', topupHandler)
 bot.action(/^topup:([A-z0-9]+)$/, invoiceHandler)
 bot.on(message('text'), (ctx) => textHandler(ctx))
 
-if (config.nodeEnv === 'production') {
+if (NODE_ENV === 'production' && BOT_DOMAIN !== undefined) {
   console.log('Bot is running in production')
-  const webhook = await bot.createWebhook({ domain: config.botDomain })
+  const webhook = await bot.createWebhook({ domain: BOT_DOMAIN })
   // @ts-expect-error fastify and telegraf webhook issue
   server.post(`/telegraf/${bot.secretPathComponent()}`, webhook)
-  await server.listen({ port: config.port, host: '0.0.0.0' })
+  await server.listen({ port: PORT, host: '0.0.0.0' })
 } else {
   console.log('Bot is running in development')
-  await server.listen({ port: config.port })
+  await server.listen({ port: PORT })
   await bot.launch()
 }