Created
April 6, 2023 13:46
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| import type { | |
| FirehoseTransformationHandler, | |
| FirehoseTransformationResultRecord, | |
| } from "aws-lambda"; | |
| function base64Encode(str: string): string { | |
| return Buffer.from(str).toString("base64"); | |
| } | |
| function base64Decode(str: string): string { | |
| return Buffer.from(str, "base64").toString("utf-8"); | |
| } | |
| async function transformRecord(record: any) { | |
| const data = JSON.parse(base64Decode(record.data)); | |
| // do something with data | |
| console.log(data); | |
| const result: FirehoseTransformationResultRecord = { | |
| recordId: record.recordId, | |
| result: "Ok", // 'Ok' | 'Dropped' | 'ProcessingFailed' | |
| data: base64Encode(JSON.stringify(data)), | |
| }; | |
| return result; | |
| } | |
| export const handler: FirehoseTransformationHandler = async (event) => { | |
| const results = await Promise.all(event.records.map(transformRecord)); | |
| return { | |
| records: results, | |
| }; | |
| }; |
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