health check and test

.env.example

@@ -0,0 +1,14 @@
+# Database Configuration
+DATABASE_URL=postgresql://username:password@localhost:5432/vesting_vault
+DB_HOST=localhost
+DB_PORT=5432
+DB_NAME=vesting_vault
+DB_USER=username
+DB_PASSWORD=password
+
+# Stellar Configuration
+STELLAR_RPC_URL=https://horizon-testnet.stellar.org
+STELLAR_NETWORK=testnet
+
+# Server Configuration
+PORT=3000

index.js

@@ -1,9 +1,67 @@
 const express = require('express');
 const cors = require('cors');
 require('dotenv').config();
+const { Client } = require('pg');
+const { Server } = require('stellar-sdk');
 
 const app = express();
-const port = 3000;
+const port = process.env.PORT || 3000;
+
+app.use(cors());
+
+// Health check endpoint
+app.get('/health', async (req, res) => {
+  const health = {
+    status: 'ok',
+    timestamp: new Date().toISOString(),
+    services: {
+      database: 'unknown',
+      stellar: 'unknown'
+    }
+  };
+
+  let allHealthy = true;
+
+  // Check database connection
+  try {
+    const client = new Client({
+      connectionString: process.env.DATABASE_URL || {
+        host: process.env.DB_HOST,
+        port: process.env.DB_PORT,
+        database: process.env.DB_NAME,
+        user: process.env.DB_USER,
+        password: process.env.DB_PASSWORD
+      }
+    });
+
+    await client.connect();
+    await client.query('SELECT 1');
+    await client.end();
+    health.services.database = 'healthy';
+  } catch (error) {
+    health.services.database = 'unhealthy';
+    health.database_error = error.message;
+    allHealthy = false;
+  }
+
+  // Check Stellar RPC connection
+  try {
+    const stellarServer = new Server(process.env.STELLAR_RPC_URL || 'https://horizon-testnet.stellar.org');
+    await stellarServer.root();
+    health.services.stellar = 'healthy';
+  } catch (error) {
+    health.services.stellar = 'unhealthy';
+    health.stellar_error = error.message;
+    allHealthy = false;
+  }
+
+  if (allHealthy) {
+    res.status(200).json(health);
+  } else {
+    health.status = 'degraded';
+    res.status(503).json(health);
+  }
+});
 
 // Middleware
 app.use(cors());
@@ -17,3 +75,4 @@ app.get('/', (req, res) => {
   });
 });
 
+app.listen(port, () => console.log(`Vesting API running on port ${port}`));