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用于 Ruby 的 Kinesis 示例 SDK
以下代码示例向您展示了如何使用 AWS SDK for Ruby 与 Kinesis 配合使用来执行操作和实现常见场景。
每个示例都包含一个指向完整源代码的链接,您可以在其中找到有关如何在上下文中设置和运行代码的说明。
主题
无服务器示例
以下代码示例展示了如何实现一个 Lambda 函数,该函数接收因接收来自 Kinesis 流的记录而触发的事件。该函数检索 Kinesis 有效负载,将 Base64 解码,并记录下记录内容。
- SDK对于 Ruby
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注意
还有更多相关信息 GitHub。在无服务器示例
存储库中查找完整示例,并了解如何进行设置和运行。 通过 Ruby 将 Kinesis 事件与 Lambda 结合使用。
# Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved. # SPDX-License-Identifier: Apache-2.0 require 'aws-sdk' def lambda_handler(event:, context:) event['Records'].each do |record| begin puts "Processed Kinesis Event - EventID: #{record['eventID']}" record_data = get_record_data_async(record['kinesis']) puts "Record Data: #{record_data}" # TODO: Do interesting work based on the new data rescue => err $stderr.puts "An error occurred #{err}" raise err end end puts "Successfully processed #{event['Records'].length} records." end def get_record_data_async(payload) data = Base64.decode64(payload['data']).force_encoding('UTF-8') # Placeholder for actual async work # You can use Ruby's asynchronous programming tools like async/await or fibers here. return data end
以下代码示例展示了如何为接收来自 Kinesis 流的事件的 Lambda 函数实现部分批处理响应。该函数在响应中报告批处理项目失败,并指示 Lambda 稍后重试这些消息。
- SDK对于 Ruby
-
注意
还有更多相关信息 GitHub。在无服务器示例
存储库中查找完整示例,并了解如何进行设置和运行。 报告通过 Ruby 进行 Lambda Kinesis 批处理项目失败。
# Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved. # SPDX-License-Identifier: Apache-2.0 require 'aws-sdk' def lambda_handler(event:, context:) batch_item_failures = [] event['Records'].each do |record| begin puts "Processed Kinesis Event - EventID: #{record['eventID']}" record_data = get_record_data_async(record['kinesis']) puts "Record Data: #{record_data}" # TODO: Do interesting work based on the new data rescue StandardError => err puts "An error occurred #{err}" # Since we are working with streams, we can return the failed item immediately. # Lambda will immediately begin to retry processing from this failed item onwards. return { batchItemFailures: [{ itemIdentifier: record['kinesis']['sequenceNumber'] }] } end end puts "Successfully processed #{event['Records'].length} records." { batchItemFailures: batch_item_failures } end def get_record_data_async(payload) data = Base64.decode64(payload['data']).force_encoding('utf-8') # Placeholder for actual async work sleep(1) data end