backend

StellarSplit — Backend

This is the NestJS backend for StellarSplit. Follow this guide exactly to get your local environment running correctly against the current codebase.

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Prerequisites

Make sure you have these installed before starting:

Tool	Minimum Version
Node.js	v18+
npm	v9+
PostgreSQL	v14+

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1. Clone and Install

If you have not already cloned the repo, do so first:

git clone https://github.com/Dataguru-tech/StellarSplit.git
cd StellarSplit/backend

Install dependencies:

npm install

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2. Environment Setup

Copy the example env file and fill in your values:

cp .env.example .env

Open .env and update every value marked with <your-value>. See the full variable reference in the table below.

Environment Variable Reference

Variable	Description	Example
DATABASE_HOST	PostgreSQL host	localhost
DATABASE_PORT	PostgreSQL port	5432
DATABASE_USER	PostgreSQL username	postgres
DATABASE_PASSWORD	PostgreSQL password	yourpassword
DATABASE_NAME	Database name	stellarsplit
JWT_SECRET	Secret key for signing JWTs	a-long-random-string
JWT_EXPIRES_IN	JWT expiry duration	7d
APP_PORT	Port the backend listens on	3000
NODE_ENV	Runtime environment	development
API_VERSION	Default API version	1

⚠️ Never commit your .env file. It is already listed in .gitignore.

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3. Database Setup

Create the database in PostgreSQL before starting the app:

psql -U postgres -c "CREATE DATABASE stellarsplit;"

If you are using a different username, replace postgres with your username.

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4. Running the App

Development (with hot reload)

npm run start:dev

Production build and run

npm run build
npm run start:prod

Standard start (no hot reload)

npm run start

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5. API Versioning and Swagger

The backend uses NestJS URI-based versioning configured in src/main.ts.

Base URL Structure