Assignments week 2 Ahmad Zetouny

assignments/hackyourtemperature/.gitignore

@@ -0,0 +1 @@
+sources/keys.js

assignments/hackyourtemperature/__tests__/app.test.js

@@ -0,0 +1,44 @@
+import app from "../sources/app.js";
+import * as keys from "../sources/keys.js";
+import supertest from "supertest";
+import fetch from "node-fetch";
+
+const request = supertest(app);
+
+describe("POST /weather", () => {
+  it("Checking for request body", (done) => {
+    request
+      .post("/weather")
+      .expect(400, { weatherText: "Request body is missing" }, done);
+  });
+
+  it("CityName should exist", (done) => {
+    request
+      .post("/weather")
+      .send({ City: "" })
+      .expect(400, { weatherText: "City name is missing" }, done);
+  });
+
+  it("CityName should be a string", (done) => {
+    request
+      .post("/weather")
+      .send({ cityName: 5 })
+      .expect(400, { weatherText: "City name should be a string" }, done);
+  });
+
+  it("Checking if the WeatherAPI is online", async () => {
+    const response = await fetch(
+      `https://api.openweathermap.org/data/2.5/weather?q=Arnhem,nl&appid=${keys.API_KEY}&units=metric`
+    );
+    expect(response.status).toBe(200);
+  });
+
+  it("Checking if temperature is a number", async () => {
+    const response = await fetch(
+      `https://api.openweathermap.org/data/2.5/weather?q=Arnhem,nl&appid=${keys.API_KEY}&units=metric`
+    );
+    const json = await response.json();
+    const temp = json.main.temp;
+    expect(typeof temp).toBe("number");
+  });
+});

assignments/hackyourtemperature/babel.config.cjs

@@ -0,0 +1,13 @@
+module.exports = {
+  presets: [
+    [
+      // This is a configuration, here we are telling babel what configuration to use
+      "@babel/preset-env",
+      {
+        targets: {
+          node: "current",
+        },
+      },
+    ],
+  ],
+};

assignments/hackyourtemperature/jest.config.js

@@ -0,0 +1,8 @@
+export default {
+  // Tells jest that any file that has 2 .'s in it and ends with either js or jsx should be run through the babel-jest transformer
+  transform: {
+    "^.+\\.jsx?$": "babel-jest",
+  },
+  // By default our `node_modules` folder is ignored by jest, this tells jest to transform those as well
+  transformIgnorePatterns: [],
+};

assignments/hackyourtemperature/package.json

@@ -0,0 +1,25 @@
+{
+  "name": "hackyourtemperature",
+  "version": "1.0.0",
+  "description": "",
+  "main": "server.js",
+  "scripts": {
+    "test": "jest",
+    "start": "node server.js"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "type": "module",
+  "dependencies": {
+    "express": "^5.1.0",
+    "express-handlebars": "^8.0.2",
+    "node-fetch": "^3.3.2"
+  },
+  "devDependencies": {
+    "@babel/preset-env": "^7.27.1",
+    "babel-jest": "^29.7.0",
+    "jest": "^29.7.0",
+    "supertest": "^7.1.0"
+  }
+}

assignments/hackyourtemperature/server.js

@@ -0,0 +1,7 @@
+import app from "./sources/app.js";
+
+const PORT = 3000;
+
+app.listen(PORT, () => {
+  console.log(`Example app listening on port ${PORT}`);
+});

assignments/hackyourtemperature/sources/app.js

@@ -0,0 +1,47 @@
+import express from "express";
+import fetch from "node-fetch";
+import * as keys from "./keys.js";
+
+const app = express();
+
+app.use(express.json());
+
+app.get("/", (req, res) => {
+  res.send("hello from backend to frontend!");
+});
+
+app.post("/weather", async (req, res) => {
+  try {
+    if (!req.body) {
+      throw { weatherText: "Request body is missing" };
+    }
+
+    const { cityName } = req.body;
+
+    if (!cityName) {
+      throw { weatherText: "City name is missing" };
+    }
+
+    if (typeof cityName !== "string") {
+      throw { weatherText: "City name should be a string" };
+    }
+
+    const response = await fetch(
+      `https://api.openweathermap.org/data/2.5/weather?q=${cityName}&APPID=${keys.API_KEY}&units=metric`
+    );
+
+    if (!response.ok) {
+      throw { weatherText: "City is not found!" };
+    }
+
+    const temp = await response.json();
+
+    res.status(200).json({
+      weatherText: `The temperature in ${cityName} is ${temp.main.temp}℃`,
+    });
+  } catch (error) {
+    res.status(400).json(error);
+  }
+});
+
+export default app;