Method constructor

deps/undici/src/lib/handler/retry-handler.js:18–73

(opts, { dispatch, handler })

class RetryHandler {
  constructor (opts, { dispatch, handler }) {
    const { retryOptions, ...dispatchOpts } = opts
    const {
      // Retry scoped
      retry: retryFn,
      maxRetries,
      maxTimeout,
      minTimeout,
      timeoutFactor,
      // Response scoped
      methods,
      errorCodes,
      retryAfter,
      statusCodes,
      throwOnError
    } = retryOptions ?? {}

    this.error = null
    this.dispatch = dispatch
    this.handler = handler
    this.opts = { ...dispatchOpts, body: wrapRequestBody(opts.body) }
    this.retryOpts = {
      throwOnError: throwOnError ?? true,
      retry: retryFn ?? RetryHandler[kRetryHandlerDefaultRetry],
      retryAfter: retryAfter ?? true,
      maxTimeout: maxTimeout ?? 30 * 1000, // 30s,
      minTimeout: minTimeout ?? 500, // .5s
      timeoutFactor: timeoutFactor ?? 2,
      maxRetries: maxRetries ?? 5,
      // What errors we should retry
      methods: methods ?? ['GET', 'HEAD', 'OPTIONS', 'PUT', 'DELETE', 'TRACE'],
      // Indicates which errors to retry
      statusCodes: statusCodes ?? [500, 502, 503, 504, 429],
      // List of errors to retry
      errorCodes: errorCodes ?? [
        'ECONNRESET',
        'ECONNREFUSED',
        'ENOTFOUND',
        'ENETDOWN',
        'ENETUNREACH',
        'EHOSTDOWN',
        'EHOSTUNREACH',
        'EPIPE',
        'UND_ERR_SOCKET'
      ]
    }

    this.retryCount = 0
    this.retryCountCheckpoint = 0
    this.headersSent = false
    this.start = 0
    this.end = null
    this.etag = null
    this.statusCode = null
    this.headers = null
  }

  onResponseStartWithRetry (controller, statusCode, headers, statusMessage, err) {