what is wrong in this prefix comparator dynamodb stream fillter pattern?

Hi, I try to filter dynamodb stream events with the following pattern:

"MaximumRetryAttempts": 1,
        "FilterCriteria": {
          "Filters": [
            {
              "Pattern": "{\"eventName\":[\"INSERT\",\"MODIFY\",\"REMOVE\"],\"dynamodb\":{\"NewImage\":{\"PK\":{\"S\":[{\"prefix\":[\"BOOK\"]}]}}}}"
            }
          ]

However, Cloudformation throws an error saying it is invalid. I can not see the error here? What am I doing wrong?

주제

서버리스 컴퓨팅 데이터베이스

태그

AWS Lambda 아마존 DynamoDB

언어

English

Haiko

질문됨 2년 전687회 조회

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이 답변이 도움이 되었나요?커뮤니티가 여러분의 지식을 활용할 수 있도록 정답을 찬성하세요.

Answering my own question for someone who stumbles upon this. Apparently, for the prefix comparator, you do not need extra brackets. The following is correct:

 "Filters": [
            {
              "Pattern": "{\"eventName\":[\"INSERT\",\"MODIFY\",\"REMOVE\"],\"dynamodb\":{\"NewImage\":{\"PK\":{\"S\":{\"prefix\":[\"BOOK\"]}}}}}"
            }
          ]

Haiko

답변함 2년 전

what is wrong in this prefix comparator dynamodb stream fillter pattern?

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