Database Logic

Stack

• Database: Neon (Serverless Postgres)
• ORM: Drizzle ORM
• Driver: @neondatabase/serverless

Connection

The database connection is initialized in db/index.ts.

import { neon } from '@neondatabase/serverless';
import { drizzle } from 'drizzle-orm/neon-http';

const sql = neon(process.env.DATABASE_URL!);
export const db = drizzle(sql);

Schema

Schema definitions are in db/schema.ts.

• users, sessions, accounts, verifications: Auth tables.
• analyses, chatbot_history: App specific tables.

Operations

Example of a database query:

import { db } from "@/db";
import { users } from "@/db/schema";
import { eq } from "drizzle-orm";

// Select
const user = await db.select().from(users).where(eq(users.email, "test@example.com"));

// Insert
await db.insert(users).values({ ... });

Migrations

• Generate: npx drizzle-kit generate
• Push: npx drizzle-kit push (or migrate script)