Geospatial GraphQL API

This project provides a Node.js GraphQL API for storing and managing geospatial entities in MongoDB using a flexible GeoJSON schema.

Features

• Single collection for all geospatial entities
• Compound index on placeId and entityType
• Stores entities as GeoJSON Feature objects
• Supports CRUD operations via GraphQL
• Ready for high throughput and future caching

Setup

1. Install MongoDB and ensure it is running on localhost:27017.
2. Run npm install to install dependencies.
3. Start the API server:

   node app.js
   

4. Access GraphQL Playground at http://localhost:4000/graphql

Example GraphQL Queries

mutation {
  createEntity(
    placeId: "abc123",
    entityType: "Parking",
    geojson: {
      type: "Feature",
      geometry: { type: "Point", coordinates: [12.34, 56.78] },
      properties: { ranking: 1, type: "underground", capacity: 50 }
    }
  ) {
    id
    placeId
    entityType
    geojson
  }
}

Index Creation

MongoDB index is created automatically via Mongoose schema.

License

MIT