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Showing content from https://docs.aws.amazon.com/sdkforruby/api/Aws/DynamoDBStreams/Client.html below:

Client — AWS SDK for Ruby V2

Examples:

Example: To retrieve all the stream records from a shard

resp = client.get_records({
  shard_iterator: "arn:aws:dynamodb:us-west-2:111122223333:table/Forum/stream/2015-05-20T20:51:10.252|1|AAAAAAAAAAEvJp6D+zaQ...  <remaining characters omitted> ...", 
})

{
  next_shard_iterator: "arn:aws:dynamodb:us-west-2:111122223333:table/Forum/stream/2015-05-20T20:51:10.252|1|AAAAAAAAAAGQBYshYDEe ... <remaining characters omitted> ...", 
  records: [
    {
      aws_region: "us-west-2", 
      dynamodb: {
        approximate_creation_date_time: Time.parse("1.46480646E9"), 
        keys: {
          "ForumName" => {
            s: "DynamoDB", 
          }, 
          "Subject" => {
            s: "DynamoDB Thread 3", 
          }, 
        }, 
        sequence_number: "300000000000000499659", 
        size_bytes: 41, 
        stream_view_type: "KEYS_ONLY", 
      }, 
      event_id: "e2fd9c34eff2d779b297b26f5fef4206", 
      event_name: "INSERT", 
      event_source: "aws:dynamodb", 
      event_version: "1.0", 
    }, 
    {
      aws_region: "us-west-2", 
      dynamodb: {
        approximate_creation_date_time: Time.parse("1.46480527E9"), 
        keys: {
          "ForumName" => {
            s: "DynamoDB", 
          }, 
          "Subject" => {
            s: "DynamoDB Thread 1", 
          }, 
        }, 
        sequence_number: "400000000000000499660", 
        size_bytes: 41, 
        stream_view_type: "KEYS_ONLY", 
      }, 
      event_id: "4b25bd0da9a181a155114127e4837252", 
      event_name: "MODIFY", 
      event_source: "aws:dynamodb", 
      event_version: "1.0", 
    }, 
    {
      aws_region: "us-west-2", 
      dynamodb: {
        approximate_creation_date_time: Time.parse("1.46480646E9"), 
        keys: {
          "ForumName" => {
            s: "DynamoDB", 
          }, 
          "Subject" => {
            s: "DynamoDB Thread 2", 
          }, 
        }, 
        sequence_number: "500000000000000499661", 
        size_bytes: 41, 
        stream_view_type: "KEYS_ONLY", 
      }, 
      event_id: "740280c73a3df7842edab3548a1b08ad", 
      event_name: "REMOVE", 
      event_source: "aws:dynamodb", 
      event_version: "1.0", 
    }, 
  ], 
}

Request syntax with placeholder values

resp = client.get_records({
  shard_iterator: "ShardIterator",   limit: 1,
})

Response structure

resp.records resp.records[0].event_id resp.records[0].event_name resp.records[0].event_version resp.records[0].event_source resp.records[0].aws_region resp.records[0].dynamodb.approximate_creation_date_time resp.records[0].dynamodb.keys resp.records[0].dynamodb.keys["AttributeName"] resp.records[0].dynamodb.new_image resp.records[0].dynamodb.new_image["AttributeName"] resp.records[0].dynamodb.old_image resp.records[0].dynamodb.old_image["AttributeName"] resp.records[0].dynamodb.sequence_number resp.records[0].dynamodb.size_bytes resp.records[0].dynamodb.stream_view_type resp.records[0].user_identity.principal_id resp.records[0].user_identity.type resp.next_shard_iterator 

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