I ' M C A N A R D A

Full-stack developer specializing in web and mobile applications. 5+ years of experience building scalable solutions with modern technologies. Based in Düsseldorf, Germany.

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YEAR
2025
PROJECT
Weather API
PLATFORM
Backend API

RESTful Weather
Data API

Node.js Express.js Axios OpenWeatherMap API RESTful API CORS dotenv Error Handling
01

THE PROJECT

Weather API is a RESTful backend service built with Node.js and Express that provides real-time weather data and forecasts. Acting as a proxy to OpenWeatherMap API, it delivers structured weather information through clean JSON endpoints with support for both city-based and coordinate-based queries. The API provides comprehensive weather metrics including current conditions, 5-day forecasts, temperature data, humidity, wind speed, visibility, and sunrise/sunset times. Designed for easy frontend integration, the service features multiple endpoint options, comprehensive error handling, and CORS configuration for seamless cross-origin requests.

02

THE CHALLENGE

Creating a reliable weather API that handles real-time data from external sources while providing clean, structured responses for frontend applications. Key challenges included securing API keys and environment variables, managing rate limiting from OpenWeatherMap, handling error responses for invalid cities or coordinates, formatting complex weather data for easy consumption, implementing proper CORS configuration, and developing caching strategies for frequently requested locations. The API needed to be robust, maintainable, and follow RESTful design principles.

RESTful API Real-time Data API Integration Error Handling
03

THE SOLUTION

I developed a production-ready backend service using Node.js and Express with Axios for HTTP requests to OpenWeatherMap API. The solution implements secure API key management using dotenv for environment variables, comprehensive error handling middleware for API failures and invalid requests, and CORS configuration for cross-origin frontend integration. The API features multiple endpoints including current weather by city or coordinates, 5-day forecasts, health check endpoint for monitoring, and root endpoint with API documentation. Data validation ensures proper city names and coordinate formats, while clean JSON response structures make frontend integration seamless. The service follows RESTful conventions with proper HTTP methods and status codes, providing detailed weather metrics including temperature (actual and feels-like), weather descriptions and conditions, humidity and pressure, wind speed and direction, visibility and cloudiness, and sunrise/sunset times.

View on GitHub API Documentation
Weather API - Detail Page
Weather API - Project Images
Reliable Data, Seamless Integration.

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I create digital experiences through Web Design, UI/UX Design, Web Development & Custom Solutions. Ready to bring your project to life? Get in touch.

Get In Touch canarda.dev@gmail.com

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I specialize in creating scalable web and mobile applications using modern technologies. From concept to deployment, let's bring your ideas to life with clean code and thoughtful design.

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Phone Number
+49 017662924381
Mail Me
canarda.dev@gmail.com
My Location
Düsseldorf Germany

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