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Build internal apps using only backend code

Turn your script or CLI into a tool everyone on your team can securely use.

Install

pnpm add @internalstack/server

Declare inputs in backend code

server.ts

import { internalStack
 } from '@internalstack/server'
import { addCustomerToDatabase
, sendWelcomeEmail
 } from './utils'

const server
 = await internalStack
('live_psk_5b2d902f24a057349d9f2d1c385fef7c59')

server
.statefulSession
(async(io
, { user
: onboardedBy
 }) => {
  const customerName
 = await io
.input
.text
('Customer name')
  //    ^ This won't resolve until validated input is received!
  const customerEmail
 = await io
.input
.email
('Customer email')


  await addCustomerToDatabase
({
    customerName
,
    customerEmail
,
    onboardedBy
,
    onboardedAt
: new Date
().toISOString
(),
  })
  await sendWelcomeEmail
(customerEmail
)
})

That's all folks!

Your team can now visit https://internalstack.dev/my-startup/onboard-customer, sign in and use the app.

Input validation and authentication built in!

Features

Why build on InternalStack?

Focus on business logic

No more CORS errors, session expired errors, or missing authentication header messages.

Secure

The server runs entirely on-premises. No code or secrets are transmitted.

SSO built in

Users are authenticated and authorized before they hit your server.

Fits right into your workflow

Your code gets committed to your own existing repositories.

Stop wrestling with your tools.

InternalStack saves time and pain on every tool you build.

Move fast and break nothing with full type safety.

server.ts

import { internalStack
 } from '@internalstack/server'
import { addCustomerToDatabase
, sendWelcomeEmail
 } from './utils'

const server
 = await internalStack
('live_psk_5b2d902f24a057349d9f2d1c385fef7c59')

server
.statefulSession
(async(io
, { user
: onboardedBy
 }) => {
  const subscriptionTier
 = await io
.input
.radio
<SubscriptionTiers
>('Subscription tier', [
    { value
: { name
: 'gold',      price
: 24.99 }, label
: 'Gold' },
    { value
: { name
: 'diamond',   price
: 34.99 }, label
: 'Diamond' },
    { value
: { name
: 'netherite', price
: 49.99 }, label
: 'Netherite' },
  ])
  console
.log
(subscriptionTier
.name
)

                             
  const newSeatCount
 = await io
.input
.number
('New seat count')

  const newMonthlyPriceEstimate
 = subscriptionTier.name * newSeatCount
The left-hand side of an arithmetic operation must be of type 'any', 'number', 'bigint' or an enum type.

  const startDate
 = await io
.input
.d
 
})

Pricing

A plan for every team

Hobby

A basic plan for individuals, small teams, and indies.

Free Forever

Full component library
Up to 10 apps
Includes 10 user seats
Email support

Get Started

Pro

Get started today

Build an internal app with authentication in 5 minutes