diff --git a/web/Learning-Season/03-backend/challenges/ode.js & Modern JavaScript/project/.gitignore b/web/Learning-Season/03-backend/challenges/ode.js & Modern JavaScript/project/.gitignore
new file mode 100644
index 0000000..32c96c1
--- /dev/null
+++ b/web/Learning-Season/03-backend/challenges/ode.js & Modern JavaScript/project/.gitignore	
@@ -0,0 +1,2 @@
+.env
+/node_modules
\ No newline at end of file
diff --git a/web/Learning-Season/03-backend/challenges/ode.js & Modern JavaScript/project/README.md b/web/Learning-Season/03-backend/challenges/ode.js & Modern JavaScript/project/README.md
new file mode 100644
index 0000000..3562eb2
--- /dev/null
+++ b/web/Learning-Season/03-backend/challenges/ode.js & Modern JavaScript/project/README.md	
@@ -0,0 +1,84 @@
+# Node.js Weather CLI Application
+
+A simple command-line tool built with **Node.js** that fetches **real time weather data** from the **OpenWeather API** and displays it in your terminal.  
+
+Perfect for learning **async/await**, **API integration**, and **error handling** in Node.js.
+
+---
+
+##  Features
+
+- Fetch weather by city name
+- Async/Await API calls
+- Environment variables for API key security
+- Error handling for:
+  - Invalid city
+  - Invalid API key
+  - Network issues
+- Clean and readable ES6+ code structure
+
+---
+
+##  Installation
+
+1) Clone the repository:
+
+```
+git clone <your-repo-url>
+cd weather-cli
+```
+
+2) Install dependencies:
+```
+npm install
+```
+
+## Setup Environment Variables
+
+Create a .env file in the project root:
+
+```
+OPENWEATHER_API_KEY=your_real_api_key_here
+```
+
+## Usage
+
+Run the CLI with a city name:
+node index.js Algiers
+
+### Example output:
+```
+City: Algiers
+Temperature: 12.68°C
+Description: mist
+humidity: 53%
+```
+## Error Handling
+
+The app gracefully handles common errors:
+| Error Type      | Message Example                                  |
+| --------------- | ---------------------------------------          |
+| Invalid city    | city not found, check the city name and try again|
+| Invalid API key | invalid API key                                  |
+| Network issue   | network error, check your internet connection    |
+| Missing API key | API key missing in .env file                     |
+
+## Technologies Used
+
+ - Node.js – Runtime environment
+ - Axios – HTTP requests library
+ - dotenv – Environment variable management
+ - OpenWeather API – Real-time weather data
+
+## 📁 Project Structure
+```
+weather-cli/
+│
+├── index.js          # Main CLI logic
+├── package.json      # Node.js dependencies
+├── .env              # API key (ignored in Git)
+├── .gitignore        # Exclude node_modules and .env
+└── README.md         # Project documentation
+```
+
+### Made by [Maya Otsmane]
\ No newline at end of file
diff --git a/web/Learning-Season/03-backend/challenges/ode.js & Modern JavaScript/project/index.js b/web/Learning-Season/03-backend/challenges/ode.js & Modern JavaScript/project/index.js
new file mode 100644
index 0000000..ba94c3c
--- /dev/null
+++ b/web/Learning-Season/03-backend/challenges/ode.js & Modern JavaScript/project/index.js	
@@ -0,0 +1,64 @@
+//CLI (for testing / running manually)
+
+
+//Sends a request to a weather API
+//Gets data
+//Returns useful info
+
+//loading environment variables : 1)Reads .env file, 2)Loads API key into process.env
+require("dotenv").config();
+//axios is a library to send http requests 
+const axios = require("axios");
+//creating the tool function 
+async function weatherTool(city) {
+     try {
+    //async because API calls take time (internet), async allows await.
+    const key = process.env.OPENWEATHER_API_KEY; //it reads the api key from .env
+    if (!key) {
+      throw new Error("API key is missing in .env file");
+     } 
+    //creating the api url
+    const url = `https://api.openweathermap.org/data/2.5/weather?q=${city}&units=metric&appid=${key}`;
+    //n3ayto lel api 
+    const res = await axios.get(url); //This sends an HTTP GET request. equivalent to opening the url in a browser
+    
+    return { //extracting useful data
+      city: res.data.name,
+     temp: res.data.main.temp,
+     description: res.data.weather[0].description,
+     humidity: res.data.main.humidity
+    };
+ } catch (error) {
+    //case if api responded with an error
+     if (error.response) {
+      if (error.response.status === 404) { //city not found
+        console.log("city not found, check the city name and try again");
+      } else if (error.response.status === 401) { //invalid api key 
+        console.log("invalid API key");
+      } else { //other problems
+        console.log("API error:", error.response.data.message);
+      }
+    } else if (error.request) {
+      console.log("network error, check your internet connection");
+    } else {
+      console.log("ERROR", error.message);
+    }
+
+    return null;
+  }
+}
+
+//testing 
+(async () => {
+const city = process.argv[2] || "Algiers";
+const data = await weatherTool(city);
+ if (data) {
+  console.log("City:", data.city);
+  console.log("Temperature:", data.temp + "°C");
+  console.log("Description:", data.description);
+  console.log("humidity:", data.humidity + "%");
+  }
+})();
+
+//kmlna the weather CLI core
+//3yit :) 
\ No newline at end of file
diff --git a/web/Learning-Season/03-backend/challenges/ode.js & Modern JavaScript/project/package-lock.json b/web/Learning-Season/03-backend/challenges/ode.js & Modern JavaScript/project/package-lock.json
new file mode 100644
index 0000000..e1c4c21
--- /dev/null
+++ b/web/Learning-Season/03-backend/challenges/ode.js & Modern JavaScript/project/package-lock.json	
@@ -0,0 +1,308 @@
+{
+  "name": "project",
+  "version": "1.0.0",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "name": "project",
+      "version": "1.0.0",
+      "license": "ISC",
+      "dependencies": {
+        "axios": "^1.13.5",
+        "dotenv": "^17.3.1"
+      }
+    },
+    "node_modules/asynckit": {
+      "version": "0.4.0",
+      "resolved": "https://registry.npmjs.org/asynckit/-/asynckit-0.4.0.tgz",
+      "integrity": "sha512-Oei9OH4tRh0YqU3GxhX79dM/mwVgvbZJaSNaRk+bshkj0S5cfHcgYakreBjrHwatXKbz+IoIdYLxrKim2MjW0Q==",
+      "license": "MIT"
+    },
+    "node_modules/axios": {
+      "version": "1.13.5",
+      "resolved": "https://registry.npmjs.org/axios/-/axios-1.13.5.tgz",
+      "integrity": "sha512-cz4ur7Vb0xS4/KUN0tPWe44eqxrIu31me+fbang3ijiNscE129POzipJJA6zniq2C/Z6sJCjMimjS8Lc/GAs8Q==",
+      "license": "MIT",
+      "dependencies": {
+        "follow-redirects": "^1.15.11",
+        "form-data": "^4.0.5",
+        "proxy-from-env": "^1.1.0"
+      }
+    },
+    "node_modules/call-bind-apply-helpers": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/call-bind-apply-helpers/-/call-bind-apply-helpers-1.0.2.tgz",
+      "integrity": "sha512-Sp1ablJ0ivDkSzjcaJdxEunN5/XvksFJ2sMBFfq6x0ryhQV/2b/KwFe21cMpmHtPOSij8K99/wSfoEuTObmuMQ==",
+      "license": "MIT",
+      "dependencies": {
+        "es-errors": "^1.3.0",
+        "function-bind": "^1.1.2"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
+    "node_modules/combined-stream": {
+      "version": "1.0.8",
+      "resolved": "https://registry.npmjs.org/combined-stream/-/combined-stream-1.0.8.tgz",
+      "integrity": "sha512-FQN4MRfuJeHf7cBbBMJFXhKSDq+2kAArBlmRBvcvFE5BB1HZKXtSFASDhdlz9zOYwxh8lDdnvmMOe/+5cdoEdg==",
+      "license": "MIT",
+      "dependencies": {
+        "delayed-stream": "~1.0.0"
+      },
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/delayed-stream": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/delayed-stream/-/delayed-stream-1.0.0.tgz",
+      "integrity": "sha512-ZySD7Nf91aLB0RxL4KGrKHBXl7Eds1DAmEdcoVawXnLD7SDhpNgtuII2aAkg7a7QS41jxPSZ17p4VdGnMHk3MQ==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=0.4.0"
+      }
+    },
+    "node_modules/dotenv": {
+      "version": "17.3.1",
+      "resolved": "https://registry.npmjs.org/dotenv/-/dotenv-17.3.1.tgz",
+      "integrity": "sha512-IO8C/dzEb6O3F9/twg6ZLXz164a2fhTnEWb95H23Dm4OuN+92NmEAlTrupP9VW6Jm3sO26tQlqyvyi4CsnY9GA==",
+      "license": "BSD-2-Clause",
+      "engines": {
+        "node": ">=12"
+      },
+      "funding": {
+        "url": "https://dotenvx.com"
+      }
+    },
+    "node_modules/dunder-proto": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/dunder-proto/-/dunder-proto-1.0.1.tgz",
+      "integrity": "sha512-KIN/nDJBQRcXw0MLVhZE9iQHmG68qAVIBg9CqmUYjmQIhgij9U5MFvrqkUL5FbtyyzZuOeOt0zdeRe4UY7ct+A==",
+      "license": "MIT",
+      "dependencies": {
+        "call-bind-apply-helpers": "^1.0.1",
+        "es-errors": "^1.3.0",
+        "gopd": "^1.2.0"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
+    "node_modules/es-define-property": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/es-define-property/-/es-define-property-1.0.1.tgz",
+      "integrity": "sha512-e3nRfgfUZ4rNGL232gUgX06QNyyez04KdjFrF+LTRoOXmrOgFKDg4BCdsjW8EnT69eqdYGmRpJwiPVYNrCaW3g==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
+    "node_modules/es-errors": {
+      "version": "1.3.0",
+      "resolved": "https://registry.npmjs.org/es-errors/-/es-errors-1.3.0.tgz",
+      "integrity": "sha512-Zf5H2Kxt2xjTvbJvP2ZWLEICxA6j+hAmMzIlypy4xcBg1vKVnx89Wy0GbS+kf5cwCVFFzdCFh2XSCFNULS6csw==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
+    "node_modules/es-object-atoms": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/es-object-atoms/-/es-object-atoms-1.1.1.tgz",
+      "integrity": "sha512-FGgH2h8zKNim9ljj7dankFPcICIK9Cp5bm+c2gQSYePhpaG5+esrLODihIorn+Pe6FGJzWhXQotPv73jTaldXA==",
+      "license": "MIT",
+      "dependencies": {
+        "es-errors": "^1.3.0"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
+    "node_modules/es-set-tostringtag": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/es-set-tostringtag/-/es-set-tostringtag-2.1.0.tgz",
+      "integrity": "sha512-j6vWzfrGVfyXxge+O0x5sh6cvxAog0a/4Rdd2K36zCMV5eJ+/+tOAngRO8cODMNWbVRdVlmGZQL2YS3yR8bIUA==",
+      "license": "MIT",
+      "dependencies": {
+        "es-errors": "^1.3.0",
+        "get-intrinsic": "^1.2.6",
+        "has-tostringtag": "^1.0.2",
+        "hasown": "^2.0.2"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
+    "node_modules/follow-redirects": {
+      "version": "1.15.11",
+      "resolved": "https://registry.npmjs.org/follow-redirects/-/follow-redirects-1.15.11.tgz",
+      "integrity": "sha512-deG2P0JfjrTxl50XGCDyfI97ZGVCxIpfKYmfyrQ54n5FO/0gfIES8C/Psl6kWVDolizcaaxZJnTS0QSMxvnsBQ==",
+      "funding": [
+        {
+          "type": "individual",
+          "url": "https://github.com/sponsors/RubenVerborgh"
+        }
+      ],
+      "license": "MIT",
+      "engines": {
+        "node": ">=4.0"
+      },
+      "peerDependenciesMeta": {
+        "debug": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/form-data": {
+      "version": "4.0.5",
+      "resolved": "https://registry.npmjs.org/form-data/-/form-data-4.0.5.tgz",
+      "integrity": "sha512-8RipRLol37bNs2bhoV67fiTEvdTrbMUYcFTiy3+wuuOnUog2QBHCZWXDRijWQfAkhBj2Uf5UnVaiWwA5vdd82w==",
+      "license": "MIT",
+      "dependencies": {
+        "asynckit": "^0.4.0",
+        "combined-stream": "^1.0.8",
+        "es-set-tostringtag": "^2.1.0",
+        "hasown": "^2.0.2",
+        "mime-types": "^2.1.12"
+      },
+      "engines": {
+        "node": ">= 6"
+      }
+    },
+    "node_modules/function-bind": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/function-bind/-/function-bind-1.1.2.tgz",
+      "integrity": "sha512-7XHNxH7qX9xG5mIwxkhumTox/MIRNcOgDrxWsMt2pAr23WHp6MrRlN7FBSFpCpr+oVO0F744iUgR82nJMfG2SA==",
+      "license": "MIT",
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/get-intrinsic": {
+      "version": "1.3.0",
+      "resolved": "https://registry.npmjs.org/get-intrinsic/-/get-intrinsic-1.3.0.tgz",
+      "integrity": "sha512-9fSjSaos/fRIVIp+xSJlE6lfwhES7LNtKaCBIamHsjr2na1BiABJPo0mOjjz8GJDURarmCPGqaiVg5mfjb98CQ==",
+      "license": "MIT",
+      "dependencies": {
+        "call-bind-apply-helpers": "^1.0.2",
+        "es-define-property": "^1.0.1",
+        "es-errors": "^1.3.0",
+        "es-object-atoms": "^1.1.1",
+        "function-bind": "^1.1.2",
+        "get-proto": "^1.0.1",
+        "gopd": "^1.2.0",
+        "has-symbols": "^1.1.0",
+        "hasown": "^2.0.2",
+        "math-intrinsics": "^1.1.0"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/get-proto": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/get-proto/-/get-proto-1.0.1.tgz",
+      "integrity": "sha512-sTSfBjoXBp89JvIKIefqw7U2CCebsc74kiY6awiGogKtoSGbgjYE/G/+l9sF3MWFPNc9IcoOC4ODfKHfxFmp0g==",
+      "license": "MIT",
+      "dependencies": {
+        "dunder-proto": "^1.0.1",
+        "es-object-atoms": "^1.0.0"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
+    "node_modules/gopd": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/gopd/-/gopd-1.2.0.tgz",
+      "integrity": "sha512-ZUKRh6/kUFoAiTAtTYPZJ3hw9wNxx+BIBOijnlG9PnrJsCcSjs1wyyD6vJpaYtgnzDrKYRSqf3OO6Rfa93xsRg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/has-symbols": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/has-symbols/-/has-symbols-1.1.0.tgz",
+      "integrity": "sha512-1cDNdwJ2Jaohmb3sg4OmKaMBwuC48sYni5HUw2DvsC8LjGTLK9h+eb1X6RyuOHe4hT0ULCW68iomhjUoKUqlPQ==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/has-tostringtag": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/has-tostringtag/-/has-tostringtag-1.0.2.tgz",
+      "integrity": "sha512-NqADB8VjPFLM2V0VvHUewwwsw0ZWBaIdgo+ieHtK3hasLz4qeCRjYcqfB6AQrBggRKppKF8L52/VqdVsO47Dlw==",
+      "license": "MIT",
+      "dependencies": {
+        "has-symbols": "^1.0.3"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/hasown": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/hasown/-/hasown-2.0.2.tgz",
+      "integrity": "sha512-0hJU9SCPvmMzIBdZFqNPXWa6dqh7WdH0cII9y+CyS8rG3nL48Bclra9HmKhVVUHyPWNH5Y7xDwAB7bfgSjkUMQ==",
+      "license": "MIT",
+      "dependencies": {
+        "function-bind": "^1.1.2"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
+    "node_modules/math-intrinsics": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/math-intrinsics/-/math-intrinsics-1.1.0.tgz",
+      "integrity": "sha512-/IXtbwEk5HTPyEwyKX6hGkYXxM9nbj64B+ilVJnC/R6B0pH5G4V3b0pVbL7DBj4tkhBAppbQUlf6F6Xl9LHu1g==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
+    "node_modules/mime-db": {
+      "version": "1.52.0",
+      "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.52.0.tgz",
+      "integrity": "sha512-sPU4uV7dYlvtWJxwwxHD0PuihVNiE7TyAbQ5SWxDCB9mUYvOgroQOwYQQOKPJ8CIbE+1ETVlOoK1UC2nU3gYvg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/mime-types": {
+      "version": "2.1.35",
+      "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.35.tgz",
+      "integrity": "sha512-ZDY+bPm5zTTF+YpCrAU9nK0UgICYPT0QtT1NZWFv4s++TNkcgVaT0g6+4R2uI4MjQjzysHB1zxuWL50hzaeXiw==",
+      "license": "MIT",
+      "dependencies": {
+        "mime-db": "1.52.0"
+      },
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/proxy-from-env": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/proxy-from-env/-/proxy-from-env-1.1.0.tgz",
+      "integrity": "sha512-D+zkORCbA9f1tdWRK0RaCR3GPv50cMxcrz4X8k5LTSUD1Dkw47mKJEZQNunItRTkWwgtaUSo1RVFRIG9ZXiFYg==",
+      "license": "MIT"
+    }
+  }
+}
diff --git a/web/Learning-Season/03-backend/challenges/ode.js & Modern JavaScript/project/package.json b/web/Learning-Season/03-backend/challenges/ode.js & Modern JavaScript/project/package.json
new file mode 100644
index 0000000..16f44ba
--- /dev/null
+++ b/web/Learning-Season/03-backend/challenges/ode.js & Modern JavaScript/project/package.json	
@@ -0,0 +1,16 @@
+{
+  "name": "project",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "axios": "^1.13.5",
+    "dotenv": "^17.3.1"
+  }
+}