Backend challenge 01: Weather CLI app using OpenWeatherMap API

.gitignore

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+.env
+node_modules
+tempCodeRunnerFile.js

web/Learning-Season/03-backend/challenges/ode.js & Modern JavaScript/solution/README.md

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+# Weather CLI
+
+A simple command-line tool that fetches real-time weather data for any city using the OpenWeatherMap API.
+
+## What it does
+
+You enter a city name, and it returns the current weather status including temperature, humidity, weather condition, and country.
+
+## Setup
+
+**1. Clone the repo and install dependencies**
+```bash
+npm install
+```
+
+> This project uses `prompt-sync`for user input and `dotenv` for environment variables.
+
+**2. Get an API key**
+
+Create a free account at [openweathermap.org](https://openweathermap.org/api) and grab your API key.
+
+**3. Create `.env` file and put you api key**
+```
+API_KEY=your_api_key_here
+```
+
+**4. Run the app**
+```bash
+node index.js
+```
+
+## Example
+
+```
+enter a city name to get its weather status: Algiers
+{
+  country: 'DZ',
+  city: 'Algiers',
+  weather: 'Clear',
+  temp: '18°C',
+  humidity: '72%'
+}
+```
+
+## Notes
+
+- Handles API errors (invalid key, city not found, server issues).

web/Learning-Season/03-backend/challenges/ode.js & Modern JavaScript/solution/index.js

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+require('dotenv').config();
+const prompt = require('prompt-sync')({ sigint: true }); // package for getting input
+
+
+
+const API_KEY = process.env.API_KEY // api_key
+let city_name; // initial declare
+do {
+  city_name = prompt("enter a city name to get its weather status: ");
+
+  if (!city_name) {
+    console.log("city name cannot be empty. Try again");
+}}while (!city_name) // while empty
+
+
+//fetching data
+async function getWeather() {
+    try {
+        if (!API_KEY) {
+            throw new Error("API-KEY is missing !!! check env file!!!!!!!")
+        }
+        const response = await fetch(`https://api.openweathermap.org/data/2.5/weather?q=${city_name}&units=${"metric"}&appid=${API_KEY}`)
+        if (response.status === 401 || response.status === 403){
+            throw new Error("INVALID API KEY!!")
+        }
+        if (response.status === 504) {
+            throw new Error("Server error, try again later")
+        }
+        if (response.status === 408) {
+            throw new Error("slow or unstable client internet connection, check your internet")
+        }
+
+        const data = await response.json()
+        console.log(data)
+        if (response.status === 404) // if city name was wrong
+            {
+            throw new Error("Invalid city name")
+        }
+        if (!response.ok) {
+            throw new Error(`Unexpected error: ${response.status}`)
+        }
+        const country = data['sys']['country']
+        city_name = data.name //ktacheft bli t9der dir . fi plaset ['']
+        const weather = data['weather'][0]['main']
+        const temp = data['main']['temp']
+        const humidity = data['main']['humidity']
+        const weather_status = {
+        "country" : country,
+        "city" : city_name,
+        "weather" : weather,
+        "temp" : `${temp}°C`,
+        "humidity" : `${humidity}%`
+        }
+        console.log(weather_status)
+    }catch (error){
+            console.error("Something went wrong: ", error.message)   
+    }
+}
+
+
+getWeather() // dédicace l Anouar
+
+
+

web/Learning-Season/03-backend/challenges/ode.js & Modern JavaScript/solution/package.json

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+{
+  "name": "weather_api",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "type": "commonjs",
+  "dependencies": {
+    "dotenv": "^17.3.1"
+  }
+}