Method constructor

lib/api/api-upgrade.js:11–35

(opts, callback)

class UpgradeHandler extends AsyncResource {
  constructor (opts, callback) {
    if (!opts || typeof opts !== 'object') {
      throw new InvalidArgumentError('invalid opts')
    }

    if (typeof callback !== 'function') {
      throw new InvalidArgumentError('invalid callback')
    }

    const { signal, opaque, responseHeaders } = opts

    if (signal && typeof signal.on !== 'function' && typeof signal.addEventListener !== 'function') {
      throw new InvalidArgumentError('signal must be an EventEmitter or EventTarget')
    }

    super('UNDICI_UPGRADE')

    this.responseHeaders = responseHeaders || null
    this.opaque = opaque || null
    this.callback = callback
    this.abort = null
    this.context = null

    addSignal(this, signal)
  }

  onRequestStart (controller, context) {
    if (this.reason) {