fix(config): 🐛 move environment vars loading to server.ts

- Remove loadEnvironmentVariables() function invocation from config/index.ts and move to server.ts
- Ensure environment variables are loaded before validating them.

src/config/index.ts

@@ -10,8 +10,6 @@ export const loadEnvironmentVariables = (): void => {
  config({ path: `.env.${process.env.NODE_ENV ?? "development"}` });
 };
 
-loadEnvironmentVariables();
-
 /**
  * The environment the application is running in.
  */

src/server.ts

@@ -0,0 +1,19 @@
+import http, { type IncomingMessage, type ServerResponse } from "node:http";
+
+import { loadEnvironmentVariables } from "./config";
+import { validateEnvironmentVariables } from "./config/validateEnvironment";
+
+loadEnvironmentVariables();
+validateEnvironmentVariables();
+
+const server = http.createServer(
+ (_request: IncomingMessage, response: ServerResponse) => {
+ response.writeHead(200, { "Content-Type": "text/plain" });
+ response.end("Hello, World!");
+ },
+);
+
+server.listen(3_000, () => {
+ // eslint-disable-next-line no-console
+ console.log("Server is listening on port 3000");
+});