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saga pattern aws

Pragya Keshap answered on February 9, 2023 Popularity 3/10 Helpfulness 1/10

answer saga pattern aws

saga pattern aws

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As you might have noticed, I am using a retry block. Where the step function will retry executing the BookHotel functions up to 3 times (after the first attempt) in case of an error that is equal to any of the following errors:

"States.Timeout"

"Lambda.ServiceException"

"Lambda.AWSLambdaException"

"Lambda.SdkClientException"

exports.handler = async (event) => {
  ...
  const {
    confirmation_id,
    checkin_date,
    checkout_date
  } = event

...

  try {
    await ddb.putItem(params).promise();
    console.log('Success')

  } catch (error) {
    console.log('Error: ', error)
    throw new Error("Unexpected Error")
  }

  if (confirmation_id.startsWith("11")) {
    throw new BookHotelError("Expected Error")
  }

  return {
    confirmation_id,
    checkin_date,
    checkout_date
  };
}

https://docs.aws.amazon.com/prescriptive-guidance/latest/modernization-data-persistence/saga-pattern.html

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Contributed on Feb 09 2023

Pragya Keshap

0 Answers Avg Quality 2/10

saga pattern aws

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