Flight service

This project is designed to retrieve flight information from three different providers—Amadeus, Sky (Rapid API), and Google Flights (Rapid API)—given an origin, destination, and date.

Features

• Fetches flight data from multiple APIs using concurrency.
• Uses Docker secrets to securely handle sensitive API keys (an alternative approach could use AWS Secrets Manager).
• Supports HTTPS with self-signed certificates. Automatically works with Let's Encrypt certificates if a real domain is configured. If we don't have a real domain we need to create self signed certificates
• Includes a helper to convert city names to provider-specific codes (e.g., "Paris" becomes PARI for Sky API). Currently supports 14 cities (see helper.go).

Prerequisites

• API keys/secrets for:
  • Amadeus API
  • Sky Rapid API
  • Google Flights Rapid API
• Docker and Docker Compose installed

Setup

1. Create a secrets directory in the project root.
2. Add your API credentials as files with these exact names:
   • amadeus_api_key.txt
   • amadeus_api_secret.txt
   • sky_rapid_api_key.txt
   • google_flight_rapid_api_key.txt

Running the Project (Development)

1. Generate self-signed certificates (run in src/ directory): openssl req -x509 -newkey rsa:4096 -keyout cert.key -out cert.pem -days 365 -nodes

2. Start the container: docker compose up --build

3. Server will run on port 8443 with HTTPS.

4. Authenticate: https://localhost:8443/public/

After authentication, you'll be redirected to the flight search interface.

Notes

Default environment: development (uses self-signed certs)

To use Let's Encrypt certificates, configure a domain and set the environment to production.