A simple Netlify serverless API using TypeScript and the sweph package to calculate planetary positions, ascendant, and midheaven.

simple-astro-api/
├── tsconfig.json    # TypeScript configuration
├── netlify.toml     # Netlify configuration
├── package.json     # Dependencies 
└── functions/
    └── astro-api.ts # Express app as serverless function

Returns planetary positions, ascendant, and midheaven for a given date, time, and location.

Query Parameters:

• date: Date in YYYY-MM-DD format
• time: Time in HH:MM:SS format (24-hour)
• lat: Latitude in decimal degrees
• lng: Longitude in decimal degrees
• house_system: House system character in sweph format (default: W)

Example Request:

/api/positions?date=2023-01-01&time=12:00:00&lat=40.7128&lng=-74.0060&house_system=O

Health check endpoint to verify the API is running.

1. Install dependencies:

   npm install
   

2. Install Netlify CLI (if not already installed):

   npm install netlify-cli -g
   

3. You'll need to download Swiss Ephemeris files and set the path:

   • Download ephemeris files from https://www.astro.com/ftp/swisseph/ephe/
   • Create an ephemeris directory in the functions directory and place the files there
   • Or set the SWEPH_PATH environment variable to point to your ephemeris files

4. Build the TypeScript code:

   npm run build
   

5. Run locally:

   npm run dev
   

1. Connect to your Netlify account:

   netlify login
   

2. Deploy to Netlify:

   netlify deploy --prod
   

Note: For production deployment, you'll need to include the ephemeris files with your function. Make sure to copy them to the dist/functions/ephemeris directory during the build process.