Env Variables

npm install dotenv

import 'dotenv/config'  // Must be first import
import { defineConfig, env } from 'prisma/config'

export default defineConfig({
  datasource: {
    url: env('DATABASE_URL'),
  },
})

// prisma.config.ts (Bun)
import { defineConfig, env } from 'prisma/config'

export default defineConfig({
  datasource: {
    url: env('DATABASE_URL'),
  },
})

npm install -D dotenv-cli

{
  "scripts": {
    "db:migrate": "dotenv -e .env.local -- prisma migrate dev",
    "db:push": "dotenv -e .env.development -- prisma db push"
  }
}

// prisma.config.ts
import { config } from 'dotenv'
import path from 'path'

// Load specific .env file
config({ path: path.join(__dirname, '.env.local') })

import { defineConfig, env } from 'prisma/config'

export default defineConfig({
  datasource: {
    url: env('DATABASE_URL'),
  },
})

// index.ts
import 'dotenv/config'

import { PrismaClient } from '../generated/client'
import { PrismaPg } from '@prisma/adapter-pg'

const adapter = new PrismaPg({
  connectionString: process.env.DATABASE_URL!
})

const prisma = new PrismaClient({ adapter })

import { config } from 'dotenv'
config()

// Now process.env.DATABASE_URL is available

import { env } from 'prisma/config'

// Type-safe environment variable access
const url = env('DATABASE_URL')  // string

# GitHub Actions
env:
  DATABASE_URL: ${{ secrets.DATABASE_URL }}

steps:
  - run: npx prisma migrate deploy