Method constructor

deps/undici/src/lib/dispatcher/pool.js:29–97

(origin, {
    connections,
    factory = defaultFactory,
    connect,
    connectTimeout,
    tls,
    maxCachedSessions,
    socketPath,
    autoSelectFamily,
    autoSelectFamilyAttemptTimeout,
    allowH2,
    useH2c,
    clientTtl,
    ...options
  } = {})

class Pool extends PoolBase {
  constructor (origin, {
    connections,
    factory = defaultFactory,
    connect,
    connectTimeout,
    tls,
    maxCachedSessions,
    socketPath,
    autoSelectFamily,
    autoSelectFamilyAttemptTimeout,
    allowH2,
    useH2c,
    clientTtl,
    ...options
  } = {}) {
    if (connections != null && (!Number.isFinite(connections) || connections < 0)) {
      throw new InvalidArgumentError('invalid connections')
    }

    if (typeof factory !== 'function') {
      throw new InvalidArgumentError('factory must be a function.')
    }

    if (connect != null && typeof connect !== 'function' && typeof connect !== 'object') {
      throw new InvalidArgumentError('connect must be a function or an object')
    }

    if (typeof connect !== 'function') {
      connect = buildConnector({
        ...tls,
        maxCachedSessions,
        allowH2,
        useH2c,
        socketPath,
        timeout: connectTimeout,
        ...(typeof autoSelectFamily === 'boolean' ? { autoSelectFamily, autoSelectFamilyAttemptTimeout } : undefined),
        ...connect
      })
    }

    super(options)

    this[kConnections] = connections || null
    this[kUrl] = util.parseOrigin(origin)
    this[kOptions] = { ...util.deepClone(options), connect, allowH2, useH2c, clientTtl, socketPath }
    this[kFactory] = factory

    this.on('connect', (origin, targets) => {
      if (clientTtl != null && clientTtl > 0) {
        for (const target of targets) {
          Object.assign(target, { ttl: Date.now() })
        }
      }
    })

    this.on('connectionError', (origin, targets, error) => {
      // If a connection error occurs, we remove the client from the pool,
      // and emit a connectionError event. They will not be re-used.