Function startDev

examples/ts-react-native-chat/scripts/dev.mjs:287–346

()

}

function startDev() {
  loadEnvFileIntoEnv()
  const config = createDevConfig()

  console.log(
    `Using EXPO_PUBLIC_TANSTACK_AI_BASE_URL=${config.baseUrl}${
      config.usedProvidedBaseUrl ? ' (from environment)' : ''
    }`,
  )
  console.log(
    config.usedProvidedPackagerHostname
      ? `Using REACT_NATIVE_PACKAGER_HOSTNAME=${config.packagerHostname} (from environment)`
      : 'Using Expo-managed Metro host detection',
  )

  if (!config.lanAddress && !config.usedProvidedBaseUrl) {
    console.warn(
      'No non-internal IPv4 address was detected. Set EXPO_PUBLIC_TANSTACK_AI_BASE_URL manually if your phone cannot reach the backend.',
    )
  }

  const children = [
    spawnProcess(config.pnpmCommand, ['dev:server'], config.serverEnv),
    spawnProcess(
      config.pnpmCommand,
      ['exec', 'expo', 'start', '--lan', '--clear'],
      config.expoEnv,
    ),
  ]

  let shuttingDown = false

  function shutdown(exitCode = 0) {
    if (shuttingDown) return
    shuttingDown = true
    for (const child of children) {
      killProcess(child)
    }
    process.exitCode = exitCode
  }

  for (const child of children) {
    child.on('error', (error) => {
      console.error(error)
      shutdown(1)
    })

    child.on('exit', (code, signal) => {
      if (shuttingDown) return
      if (code === 0 || signal) {
        shutdown(0)
      } else {
        shutdown(code ?? 1)
      }
    })
  }

  process.on('SIGINT', () => shutdown(0))