Assignments week 1 YANA SENIUK

assignments/hackyourtemperature/.gitignore

@@ -0,0 +1,4 @@
+node_modules/
+.env
+.vscode
+npm-debug.log

assignments/hackyourtemperature/package.json

@@ -0,0 +1,18 @@
+{
+  "name": "hackyourtemperature",
+  "version": "1.0.0",
+  "description": "",
+  "main": "server.js",
+	"type": "module",
+  "scripts": {
+    "start": "node src/server.js",
+		"dev": "node --watch --env-file=.env src/server.js"
+  },
+  "author": "yanaesher",
+  "license": "ISC",
+  "devDependencies": {
+    "express": "^5.1.0",
+    "express-handlebars": "^8.0.3",
+    "node-fetch": "^3.3.2"
+  }
+}

assignments/hackyourtemperature/src/controllers/weather.controller.js

@@ -0,0 +1,11 @@
+export function getCityName(req, res, next) {
+  const { cityName } = req.body;
+
+  if (!cityName?.trim()) {
+    const error = new Error("Required parameter 'cityName' is missing");
+    error.status = 400;
+    return next(error);
+  }
+
+  res.status(200).json({ cityName });
+}

assignments/hackyourtemperature/src/middlewares/error.middleware.js

@@ -0,0 +1,5 @@
+export function errorHandler(err, req, res, next) {
+  const statusCode = err.status || 500;
+  const message = err.message || "Something went wrong";
+  res.status(statusCode).json({ message });
+}

assignments/hackyourtemperature/src/middlewares/notFound.middleware.js

@@ -0,0 +1,5 @@
+export function notFound(req, res, next) {
+  const error = new Error(`Not found`);
+  error.status = 404;
+  next(error);
+}

assignments/hackyourtemperature/src/middlewares/validateBody.js

@@ -0,0 +1,9 @@
+export function validateBody(req, res, next) {
+  if (!req.body || Object.keys(req.body).length === 0) {
+    const error = new Error("Request body is missing");
+    error.status = 400;
+    return next(error);
+  }
+
+  next();
+}

assignments/hackyourtemperature/src/routes/temperature.routes.js

@@ -0,0 +1,8 @@
+import { Router } from "express";
+import { validateBody } from "../middlewares/validateBody.js";
+import { getCityName } from "../controllers/weather.controller.js";
+const router = Router();
+
+router.post("/", validateBody, getCityName);
+
+export default router;

assignments/hackyourtemperature/src/server.js

@@ -0,0 +1,23 @@
+import express from "express";
+import weatherRouter from "./routes/temperature.routes.js";
+
+import { notFound } from "./middlewares/notFound.middleware.js";
+import { errorHandler } from "./middlewares/error.middleware.js";
+
+const app = express();
+const PORT = process.env.PORT || 3000;
+
+app.use(express.json());
+app.use(express.urlencoded({ extended: false }));
+
+app.use("/api/weather", weatherRouter);
+app.get("/api", (req, res) => {
+  res.status(200).send("hello from backend to frontend!");
+});
+
+app.use(notFound);
+app.use(errorHandler);
+
+app.listen(PORT, () => {
+  console.log(`Server is running at http://127.0.0.1:${PORT}`);
+});