Code

// Read
const name = $context.get('name')
const name = $context.get('name', 'John') // with default value

// Write
$context.set('lastOrder.status', 'delivered')
$context.set('user', { name: 'John', plan: 'gold' })

// Primitives (string, number, boolean) - optional TTL
$memory.set('name', 'John')
$memory.set('attempts', 3, 3600) // expires in 1 hour

// JSON - TTL required (in seconds, maximum 86,400 = 1 day)
$memory.setJson('user', { name: 'John', plan: 'gold' }, 86400)

// Files - async, TTL required (maximum 604,800 = 1 week)
await $memory.setFile('receipt', base64String, 604800, 'application/pdf')

const name = $memory.get('name')
const user = $memory.getJson('user')
const url = $memory.getFile('receipt').toUrl()           // temporary URL
const base64 = await $memory.getFile('receipt').toBase64()

$memory.delete('temporary')
$memory.delete(['tmp1', 'tmp2', 'cache']) // multiple keys

const userId = $user.get('id')
const userName = $user.get('names')

const text = $message.get('text')
const type = $message.get('type')       // TEXT, IMAGE, AUDIO, VIDEO, LOCATION, FILE
const attachmentUrl = $message.get('mediaUrl')
const lat = $message.get('lat')
const lng = $message.get('lng')

const city = $input.get('city', 'Quito')  // with default value
$output.set('data', result)

let apiResponse = $context.getHttpResponse('apiResponse')
apiResponse = apiResponse.json()

$memory.set('name', apiResponse.data.user.name)

// Primitives are stored as-is
$utils.logger.log('userId', 1245)
$utils.logger.log('status', 'active')

// Objects and arrays are converted to string (truncated to 512 characters)
$utils.logger.log('orderData', { id: 1, name: 'christian' })

$utils.crypto.createHash('sha256')
$utils.crypto.createHmac('sha256', key)
$utils.crypto.randomBytes(32)

$utils._.get(object, 'nested.path', defaultValue)
$utils._.uniq(array)
$utils._.chunk(array, size)
$utils._.merge(object1, object2)