User-Defined Metadata

描述

貢獻者指南

技術棧

javascriptaws

領域

backendcloud

議題類型

feature

難度面向新貢獻者的預計實作難度，1 表示很小改動，5 表示專家級工作。

3

預計時間有經驗貢獻者完成調查、實作、測試並準備 pull request 的粗略時間範圍。

half day

活動狀態議題目前的可參與程度：新鮮、活躍、陳舊、阻塞或等待維護者輸入。

stale

清晰度議題是否清楚說明預期改動、驗收標準和下一步。

needs investigation

前置要求

JavaScript basicsAWS LambdaS3 metadata

新手友善度1-100 的估計分數，表示該議題對首次貢獻者的友善程度。

35

研究方向

Review the Lambda function handler (likely index.js) to understand how images are processed and uploaded to S3. The current implementation likely reads the source image, resizes it, and writes to a destination bucket without preserving the original user defined metadata. To fix, modify the S3 putObject call to include the metadata from the source object, which can be retrieved from the Lambda event or by calling getObjectAttributes. Ensure that only allowed metadata headers are copied. See AWS S3 SDK documentation for copying object metadata.