feat: basic api setup and boilerplate

backend/src/app.js

@@ -0,0 +1,42 @@
+import express from "express";
+import dotenv from "dotenv";
+import cors from "cors";
+
+import departmentRoutes from "./routes/department.routes.js";
+import authRoutes from "./routes/auth.routes.js";
+import blogRoutes from "./routes/blog.routes.js";
+import uploadRoutes from "./routes/upload.routes.js";
+
+dotenv.config();
+
+const app = express();
+
+const allowedOrigins = process.env.CORS_ALLOWED_ORIGINS
+	? process.env.CORS_ALLOWED_ORIGINS.split(" ")
+	: ["http://localhost:3001"];
+
+const corsOptions = {
+	origin: function (origin, callback) {
+		if (!origin || allowedOrigins.includes(origin)) {
+			callback(null, true);
+		} else {
+			callback(new Error("Not allowed by CORS"));
+		}
+	},
+	methods: ["GET", "POST", "PUT", "DELETE", "PATCH"],
+	allowedHeaders: "*",
+};
+
+app.use(express.json());
+app.use(cors(corsOptions));
+
+app.use("/api/departments", departmentRoutes);
+app.use("/api/auth", authRoutes);
+app.use("/api/blogs", blogRoutes);
+app.use("/uploads", express.static("uploads"));
+app.use("/api/upload", uploadRoutes);
+
+const PORT = process.env.PORT || 3000;
+app.listen(PORT, () => {
+	console.log(`Server running on port ${PORT}`);
+});