The sandbox persistence allows you to pause your sandbox and resume it later from the same state it was in when you paused it. This includes not only state of the sandbox’s filesystem but also the sandbox’s memory. This means all running processes, loaded variables, data, etc.
Please note:
  • It takes about 4 seconds per 1 GB RAM to pause the sandbox.
  • It takes about 1 second to resume the sandbox.
  • Sandbox can be paused up to 30 days.
  • After 30 days, the data will be deleted and you will not be able to resume the sandbox. Trying to resume sandbox that was deleted or does not exist will result in the NotFoundError error in JavaScript SDK and NotFoundException exception in Python SDK.

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Pausing sandbox

When you pause a sandbox, both the sandbox’s filesystem and memory state will be saved. This includes all the files in the sandbox’s filesystem and all the running processes, loaded variables, data, etc. 
import { Sandbox } from 'novita-sandbox/code-interpreter'

const sandbox = await Sandbox.create()
console.log('Sandbox created', sandbox.sandboxId)

// Pause the sandbox.
// You can save the sandbox ID in your database
// to resume the sandbox later
const result = await sandbox.betaPause()
console.log('Sandbox paused', sandbox.sandboxId, result)

await sandbox.kill()

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Resuming sandbox

When you resume a sandbox, it will be in the same state it was in when you paused it. This means that all the files in the sandbox’s filesystem will be restored and all the running processes, loaded variables, data, etc. will be restored. 
import { Sandbox } from 'novita-sandbox/code-interpreter'

const sandbox = await Sandbox.create()
console.log('Sandbox created', sandbox.sandboxId)

// Pause the sandbox.
// You can save the sandbox ID in your database
// to resume the sandbox later
const result = await sandbox.betaPause()
console.log('Sandbox paused', sandbox.sandboxId, result)

// Resume the sandbox from the same state.
const resumedSandbox = await sandbox.connect()
console.log('Sandbox resumed', resumedSandbox.sandboxId)

await sandbox.kill()

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Listing paused sandboxes

You can list all paused sandboxes by calling the Sandbox.list method and supplying the state query parameter. More information about using the method can be found in List Sandboxes. 
import { Sandbox, SandboxInfo } from 'novita-sandbox/code-interpreter'

const sandbox = await Sandbox.create()

// List all paused sandboxes.
const paginator = Sandbox.list({ query: { state: ['paused'] } })

// Get all paused sandboxes.
const sandboxes: SandboxInfo[] = []
while (paginator.hasNext) {
  const items = await paginator.nextItems()
  sandboxes.push(...items)
}

console.log('all paused sandboxes', sandboxes)

await sandbox.kill()

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Removing paused sandboxes

You can remove paused sandboxes by calling the kill method on the sandbox instance. 
import { Sandbox } from 'novita-sandbox/code-interpreter'

const sandbox = await Sandbox.create()
console.log('Sandbox created', sandbox.sandboxId)

// Pause the sandbox.
await sandbox.betaPause()

// Kill the paused sandbox.
await sandbox.kill()

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Sandbox’s timeout

When you resume a sandbox, the sandbox’s timeout is reset to the default timeout of a sandbox - 5 minutes. You can pass a custom timeout to the Sandbox.connect() method like this: 
import { Sandbox } from 'novita-sandbox/code-interpreter'

const sandbox = await Sandbox.create()

const connectedSandbox = await Sandbox.connect(sandbox.sandboxId, { timeoutMs: 60 * 1000 })
console.log('Sandbox connected', connectedSandbox.sandboxId)

await sandbox.kill()

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Network

If you have a service (for example a server) running inside your sandbox and you pause the sandbox, the service won’t be accessible from the outside and all the clients will be disconnected. If you resume the sandbox, the service will be accessible again but you need to connect clients again.