added gitignore and table creation

.env

-PORT=5000
-DB_USER=postgres
-DB_HOST=127.0.0.1
-DB_NAME=my_pgdb
-DB_PASSWORD=Adarsh@2002
-DB_PORT=5432
\ No newline at end of file

.gitignore

+# Node.js
+node_modules/
+npm-debug.log
+yarn-error.log
+
+# Environment variables
+.env
+
+# Logs
+logs/
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# Database
+*.sqlite
+*.sqlite3
+
+# IDEs and editors
+.vscode/
+.idea/
+*.sublime-project
+*.sublime-workspace
+
+# Operating system files
+.DS_Store
+Thumbs.db
\ No newline at end of file

config/db.js

@@ -10,7 +10,27 @@ const pool = new Pool({
 });
 
 pool.connect()
-  .then(() => console.log(" PostgreSQL Database Connected Successfully"))
+  .then(async (client) => {
+    console.log("PostgreSQL Database Connected Successfully");
+
+    const createTableQuery = `
+      CREATE TABLE IF NOT EXISTS usage_metrics (
+        id SERIAL PRIMARY KEY,
+        email VARCHAR(255) NOT NULL,
+        projectId VARCHAR(255) NOT NULL,
+        requestType VARCHAR(50) CHECK (requestType IN ('completion', 'explanation', 'documentation', 'testcase')),
+        linesOfCodeSuggested INT DEFAULT 0,
+        linesOfCodeAccepted INT DEFAULT 0,
+        requestId UUID DEFAULT gen_random_uuid(),
+        created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
+      );
+    `;
+
+    await client.query(createTableQuery);
+    console.log("Table 'usage_metrics' is ready");
+
+    client.release();
+  })
   .catch((err) => console.error("Database Connection Failed:", err));
 
 module.exports = pool;