Added env check on compile time

apps/backend/drizzle.config.ts

@@ -1,11 +1,8 @@
 import "dotenv/config";
 import type { Config } from "drizzle-kit";
+import appEnv from "./src/appEnv";
 
-const databaseUrl = process.env.DATABASE_URL;
-
-if (!databaseUrl) {
-	throw new Error("DATABASE_URL is not set");
-}
+const databaseUrl = appEnv.DATABASE_URL;
 
 export default {
 	schema: "./src/drizzle/schema/*",

apps/backend/package.json

@@ -6,7 +6,8 @@
 		"db:push": "drizzle-kit push",
 		"db:seed": "tsx src/drizzle/seed.ts",
 		"db:migrate": "tsx src/drizzle/migration.ts",
-		"db:studio": "drizzle-kit studio"
+		"db:studio": "drizzle-kit studio",
+		"start": "tsc -p tsconfig.json && tsx src/index.ts"
 	},
 	"dependencies": {
 		"@hono/node-server": "^1.11.1",

apps/backend/src/appEnv.ts

@@ -0,0 +1,20 @@
+import dotenv from "dotenv";
+import { z } from "zod";
+
+dotenv.config();
+
+const envSchema = z.object({
+	APP_PORT: z.coerce.number().int(),
+	DATABASE_URL: z.string(),
+	ACCESS_TOKEN_SECRET: z.string(),
+	REFRESH_TOKEN_SECRET: z.string(),
+	COOKIE_SECRET: z.string(),
+});
+
+const parsedEnv = envSchema.safeParse(process.env);
+
+if (!parsedEnv.success) {
+	throw new Error(parsedEnv.error.toString());
+}
+
+export default parsedEnv.data;

apps/backend/src/drizzle/index.ts

@@ -7,10 +7,11 @@ import * as rolesSchema from "./schema/roles";
 import * as permissionsToRolesSchema from "./schema/permissionsToRoles";
 import * as permissionsToUsersSchema from "./schema/permissionsToUsers";
 import * as rolesToUsersSchema from "./schema/rolesToUsers";
+import appEnv from "../appEnv";
 
 configDotenv();
 
-const dbUrl = process.env.DATABASE_URL;
+const dbUrl = appEnv.DATABASE_URL;
 
 if (!dbUrl) throw new Error("DATABASE_URL is not set");
 

apps/backend/src/drizzle/migration.ts

@@ -2,10 +2,11 @@ import { configDotenv } from "dotenv";
 import { drizzle } from "drizzle-orm/postgres-js";
 import { migrate } from "drizzle-orm/postgres-js/migrator";
 import postgres from "postgres";
+import appEnv from "../appEnv";
 
 configDotenv();
 
-const dbUrl = process.env.DATABASE_URL;
+const dbUrl = appEnv.DATABASE_URL;
 
 if (!dbUrl) throw new Error("DATABASE_URL is not set");
 

apps/backend/src/index.ts

@@ -14,6 +14,7 @@ import { logger } from "hono/logger";
 import DashboardError from "./errors/DashboardError";
 import HonoEnv from "./types/HonoEnv";
 import devRoutes from "./routes/dev/route";
+import appEnv from "./appEnv";
 
 configDotenv();
 
@@ -27,7 +28,7 @@ const routes = app
 		})
 	)
 	.use(async (c, next) => {
-		const cookieSecret = process.env.COOKIE_SECRET;
+		const cookieSecret = appEnv.COOKIE_SECRET;
 
 		if (!cookieSecret)
 			throw new HTTPException(500, {
@@ -108,7 +109,7 @@ const routes = app
 		}
 	});
 
-const port = +(process.env.APP_PORT ?? 3000);
+const port = appEnv.APP_PORT;
 console.log(`Server is running on port ${port}`);
 
 serve({

apps/backend/src/routes/auth/route.ts

@@ -21,6 +21,7 @@ import { permissionsSchema } from "../../drizzle/schema/permissions";
 import { SpecificPermissionCode } from "../../data/permissions";
 import authInfo from "../../middlewares/authInfo";
 import { unauthorized } from "../../errors/DashboardError";
+import appEnv from "../../appEnv";
 
 const authRoutes = new Hono<HonoEnv>()
 	.post(
@@ -98,7 +99,7 @@ const authRoutes = new Hono<HonoEnv>()
 				uid: user[0].users.id,
 			});
 
-			const cookieSecret = process.env.COOKIE_SECRET;
+			const cookieSecret = appEnv.COOKIE_SECRET;
 
 			if (!cookieSecret)
 				throw new HTTPException(500, {

apps/backend/src/utils/authUtils.ts

@@ -1,10 +1,9 @@
 import jwt from "jsonwebtoken";
+import appEnv from "../appEnv";
 
 // Environment variables for secrets, defaulting to a random secret if not set.
-const accessTokenSecret =
-	process.env.ACCESS_TOKEN_SECRET ?? "some-random-secret";
-const refreshTokenSecret =
-	process.env.REFRESH_TOKEN_SECRET ?? "some-very-random-secret";
+const accessTokenSecret = appEnv.ACCESS_TOKEN_SECRET;
+const refreshTokenSecret = appEnv.REFRESH_TOKEN_SECRET;
 
 // Algorithm to be used for JWT encoding.
 const algorithm: jwt.Algorithm = "HS256";

apps/backend/tsconfig.json

@@ -6,6 +6,9 @@
 		"strict": true,
 		"types": ["node"],
 		"jsx": "react-jsx",
-		"jsxImportSource": "hono/jsx"
-	}
+		"jsxImportSource": "hono/jsx",
+		"noEmit": true,
+		"skipLibCheck": true
+	},
+	"include": ["src/**/*"]
 }