Splitly Backend

A MERN backend to split expenses among a group with smart settlements.

Features

• Add and view people
• Add expenses (equal, exact, percentage)
• View who owes how much
• Auto-settlement logic
• API error handling

API Base URL

https://splitly-backend.onrender.com

Sample People

• Shantanu
• Sanket
• Om

API Endpoints

Method	Endpoint	Description
GET	/api/settlements/getPeople	Get list of all people
GET	/api/expense/getExpenses	Get list of all expenses
POST	/api/expense/addExpense	Add a new expense
PUT	/api/expense/updateExpense/:id	Update an existing expense
DELETE	/api/expense/deleteExpense/:id	Delete an expense
GET	/api/settlements/getSettlements	Get settlement summary (who owes whom)
GET	/api/settlements/getBalances	Get balance per person

Setup (Local)

1. Clone repo
2. Install dependencies: npm install
3. Create .env: MONGODB_URL='mongodb+srv://vedantmohol18:Krsna18@splitly.l8w4hko.mongodb.net/splitly?retryWrites=true&w=majority&appName=splitly' PORT=3000
4. Run dev server: npm run dev

Deployment

• Backend: Render
• DB: MongoDB Atlas

Postman Collection

• 📁 Public Gist: Postman Collection Link

Notes

• No local setup needed — everything runs on deployed backend
• Pre-populated with:
• 3 people (Shantanu, Sanket, Om)
• Sample expenses with all split types
• Balances/summary are auto-computed