SylvaLens - Backend

The core API layer for the SylvaLens platform, built with NestJS and TypeORM.

Features

• Spatial Queries: Optimized PostGIS routing for administrative and BD Forêt geometry.
• Microservice Proxy: Integrates with the FastAPI raster service for heavy geospatial computation.
• Authentication: JWT-based auth for user accounts and map state persistence.
• OpenAPI / Swagger: Automatically generates API contracts for frontend consumption.

Development Setup

Prerequisites

• Node.js (v20+)
• pnpm
• A running PostGIS database and Raster service (use the infra repository's local compose stack).

1. Configuration

Copy the .env.example file to .env:

cp .env.example .env

Ensure DB_PORT=5433 if you are using the default local infra stack.

2. Run Development Server

pnpm install
pnpm run start:dev

The API will be available at http://localhost:4000. Swagger documentation is available at http://localhost:4000/api/docs.

Production Build

See the sylvalens/infra repository for production deployment orchestration.