Bolt.new AI and Microsoft SQL Server integration: Step-by-Step Guide 2025

To integrate Bolt.new with Microsoft SQL Server, you don’t “connect Bolt to SQL Server” directly. Instead, you spin up backend code inside the Bolt.new workspace (usually Node.js), install a real SQL Server driver, store your SQL credentials in Bolt environment variables, and let your backend talk to SQL Server over a normal TCP connection using the SQL Server hostname, username, password, and database. Bolt.new behaves like any other cloud sandbox: your code runs, loads env vars, uses standard drivers, and opens network connections. That’s it.

 

What You Actually Do

 

You create a backend (Node.js is common) in Bolt.new, then use a real SQL Server driver such as mssql. You configure your connection string using environment variables inside Bolt.new’s project settings. Your backend then queries SQL Server just like a real app outside Bolt — because it is a real app.

• You MUST have a SQL Server instance accessible from the internet or a VPN.
• You MUST use real credentials: server host, username, password, database name.
• You MUST set them as environment variables in Bolt (never hardcode secrets).
• You MUST open the correct ports (default SQL Server is 1433) on your SQL host.

 

Step-by-step Pattern in Bolt.new

 

This is the canonical (real-world, valid) approach.

• Create a backend file such as /api/db.js or /api/users.js in Bolt.new.
• Install the SQL Server driver using the Bolt terminal.

npm install mssql

• Define your connection using environment variables you set in Bolt.new.

// /api/db.js
import sql from "mssql";

const config = {
  user: process.env.SQL_USER,
  password: process.env.SQL_PASSWORD,
  database: process.env.SQL_DATABASE,
  server: process.env.SQL_HOST,      // Example: "your-sql-hostname.cloudapp.net"
  port: 1433,                        // default SQL Server port
  options: {
    encrypt: true,                   // required for Azure SQL, safe for others
    trustServerCertificate: false    // set to true only for local dev
  }
};

export async function queryDatabase() {
  try {
    const pool = await sql.connect(config);
    const result = await pool.request().query("SELECT TOP (10) * FROM Users"); // replace real table
    return result.recordset;
  } catch (err) {
    console.error("SQL error:", err);
    throw err;
  }
}

• Create an API route that calls it.

// /api/users.js
import { queryDatabase } from "./db.js";

export default async function handler(req, res) {
  try {
    const data = await queryDatabase();
    res.status(200).json({ users: data });
  } catch (e) {
    res.status(500).json({ error: "Database query failed" });
  }
}

• Inside Bolt.new → Project Settings → Environment Variables, define:

SQL_HOST=your-sql-server-hostname
SQL_USER=your-sql-username
SQL_PASSWORD=your-password
SQL_DATABASE=your-database-name

• Run your backend inside Bolt and call /api/users.

 

How Authentication Really Works

 

SQL Server doesn’t use OAuth or tokens. It uses SQL authentication or Windows authentication. In cloud-hosted setups (Azure SQL, RDS for SQL Server, on‑prem with public IP), you generally use SQL authentication: username + password. Bolt.new simply reads these from env vars and uses them in the driver.

• If your SQL Server is on‑prem and not publicly reachable, you need a tunnel or VPN. Bolt.new cannot magically reach private networks.
• If using Azure SQL Server, ensure firewall rules allow Bolt.new’s outbound IPs or allow “public internet” access.

 

How to Harden for Real Production

 

Once the integration works in Bolt.new, deploying it to a real environment (Render, Vercel, AWS, Azure App Service, etc.) is straightforward. The same Node.js driver and the same code run unchanged. You only reconfigure environment variables to point at production SQL Server.

• Use parameterized queries or stored procedures.
• Never allow 0.0.0.0/0 inbound SQL traffic in production — restrict IPs.
• Use encrypted connections (encrypt: true).
• Use connection pooling.

 

In short

 

You integrate Bolt.new with Microsoft SQL Server exactly the same way any backend integrates with SQL Server: install the real driver, load credentials from environment variables, connect over TCP, and run SQL queries. Bolt.new doesn’t add magic — it gives you a place to write and run the backend code that talks to SQL Server using standard, real-world patterns.