Serverless drivers

import { sql } from '@vercel/postgres'
import { InferInsertModel, InferSelectModel } from 'drizzle-orm'
import { pgTable, serial, text, timestamp, uniqueIndex } from 'drizzle-orm/pg-core'
import { drizzle } from 'drizzle-orm/vercel-postgres'

export const UsersTable = pgTable(
  'users',
  {
    id: serial('id').primaryKey(),
    name: text('name').notNull(),
    email: text('email').notNull(),
    image: text('image').notNull(),
    createdAt: timestamp('createdAt').defaultNow().notNull(),
  },
  (users) => {
    return {
      uniqueIdx: uniqueIndex('unique_idx').on(users.email),
    }
  }
)

export type User = InferSelectModel<typeof UsersTable>
export type NewUser = InferInsertModel<typeof UsersTable>

// Connect to Vercel Postgres
export const db = drizzle(sql)

import { createKysely } from '@vercel/postgres-kysely'
import { ColumnType, Generated } from 'kysely'

interface UserTable {
  // Columns that are generated by the database should be marked
  // using the `Generated` type. This way they are automatically
  // made optional in inserts and updates.
  id: Generated<number>
  name: string
  email: string
  image: string

  // You can specify a different type for each operation (select, insert and
  // update) using the `ColumnType<SelectType, InsertType, UpdateType>`
  // wrapper. Here we define a column `createdAt` that is selected as
  // a `Date`, can optionally be provided as a `string` in inserts and
  // can never be updated:
  createdAt: ColumnType<Date, string | undefined, never>
}

// Keys of this interface are table names.
export interface Database {
  users: UserTable
}

export const db = createKysely<Database>()
export { sql } from 'kysely'