Added gitignore

controller/loginUser.js

@@ -0,0 +1,67 @@
+const clickhouse = require('../database/clickhouse');
+const jwt = require('jsonwebtoken');
+
+const JWT_SECRET = 'secretkey';
+
+
+const loginUser = async (req, res) => {
+  try {
+    const { username, password } = req.body;
+
+    if (!username || !password) {
+      return res.status(400).json({ 
+        success: false, 
+        message: "Username and password are required" 
+      });
+    }
+
+   
+    const resultSet = await clickhouse.query({
+      query: 'SELECT * FROM usertable WHERE username = {user: String} AND password = {pass: String}',
+      query_params: {
+        user: username,
+        pass: password
+      },
+      format: 'JSONEachRow',
+    });
+
+    const rows = await resultSet.json();
+
+
+    if (rows.length === 0) {
+      return res.status(401).json({ 
+        success: false, 
+        message: "Invalid username or password" 
+      });
+    }
+
+    const user = rows[0];
+
+
+    const token = jwt.sign(
+      { 
+        client_id: user.client_id, 
+        username: user.username 
+      },
+      JWT_SECRET,
+      { expiresIn: '24h' }
+    );
+
+  
+    res.status(200).json({
+      success: true,
+      message: "Login successful",
+      token: token,
+    });
+
+  } catch (error) {
+    console.error("Login Error:", error);
+    res.status(500).json({ 
+      success: false, 
+      message: "Internal server error", 
+      error: error.message 
+    });
+  }
+};
+
+module.exports = { loginUser };