Example: listing messages

import { APIConnectionError, APIError, ISnapClient } from '@isnap/sdk'

const apiKey = process.env.ISNAP_API_KEY
if (!apiKey) {
  console.error('Set ISNAP_API_KEY, then run: list-messages.ts [line id]')
  process.exit(1)
}

// Optional: the id of one line. Without it, the script walks every line the key reaches.
const lineId: string | undefined = process.argv[2]

const client = new ISnapClient({ apiKey, maxRetries: 2 })

const since = new Date(Date.now() - 24 * 60 * 60 * 1000).toISOString()
const maxMessages = 1_000

const byStatus = new Map<string, number>()
let count = 0

try {
  // Newest first, 100 messages per request. An undefined filter is left out.
  const messages = client.messages.list({
    line_id: lineId,
    direction: 'outbound',
    kind: 'message',
    since,
    limit: 100
  })

  for await (const message of messages) {
    count += 1
    byStatus.set(message.status, (byStatus.get(message.status) ?? 0) + 1)
    if (message.status === 'failed') {
      const cause = message.error_code ?? 'reported by the device'
      console.log(`${message.id} failed at ${message.failed_at}: ${cause}`)
    }
    if (count === maxMessages) break
  }
} catch (err) {
  process.exitCode = 1
  if (err instanceof APIError) {
    console.error(`Stopped after ${count} messages: ${err.status} ${err.code} (request ${err.requestId})`)
  } else if (err instanceof APIConnectionError) {
    console.error(`Stopped after ${count} messages: no usable response`)
  } else {
    throw err
  }
}

for (const [status, total] of byStatus) {
  console.log(`${status}: ${total}`)
}