attemptPutWithClockSkewRetry.js

  /**
   * Note that this temporarily works around an issue where Amplify does not support
   * the AWS SDK' correctClockSkew option, by retrying with a manually defined offset
   * if the request time is too skewed.
   * @see https://github.com/aws-amplify/amplify-js/issues/2014
   */
  const attemptPutWithClockSkewRetry = () =>
    Storage
    .put(
      itemKey,
      itemData
    )
    .catch(async err => {
      if (err.code === 'RequestTimeTooSkewed') {
        const serverTimeFetch = await fetch('https://your-lambda-function-returning-server-time.amazonaws.com/time', { headers: { "Accept": "application/json" } })
        const serverTimeFetchResponse = await serverTimeFetch.json()
        const systemClockOffset = serverTimeFetchResponse.time - Date.now()

        console.log(`setting systemClockOffset to %s`, systemClockOffset)

        AWS.config.update({
          systemClockOffset
        })

        if (!err.retryable) {
          attemptPutWithClockSkewRetry()
        }
      }
      else {
        throw err
      }
    })
  attemptPutWithClockSkewRetry()