Press n or j to go to the next uncovered block, b, p or k for the previous block.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 | 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x | import { DynamoDBStreamHandler } from "aws-lambda"; import { IHeaders, Producer, TopicMessages } from "kafkajs"; import { unmarshall } from "@aws-sdk/util-dynamodb"; import log from "./logging"; export type TxOutboxMessage = { topic: string; key?: string; value: string; partition?: number; headers?: Record<string, string>; timestamp?: string; isTxOutboxEvent: true; }; export const _handler = (producerP: Promise<Pick<Producer, "sendBatch">>): DynamoDBStreamHandler => async (e) => { const batch = e.Records.reduce<{ [topic: string]: { key: Buffer | undefined; value: Buffer; headers?: IHeaders; }[]; }>((batch, next) => { // eslint-disable-next-line @typescript-eslint/no-non-null-assertion const { NewImage } = next.dynamodb!; // eslint-disable-next-line @typescript-eslint/no-non-null-assertion if (NewImage) { const object = unmarshall(NewImage as any) as TxOutboxMessage; const { topic, key, value, headers } = object; Iif (!topic || !value) { log.error("Invalid outbox messages", object); throw new Error("Invalid outbox messages: " + JSON.stringify(object)); } const existingBatch = batch[topic] || []; const newBatch = { ...batch, [topic]: [ ...existingBatch, { key: key ? Buffer.from(key, "base64") : undefined, value: Buffer.from(value, "base64"), headers, }, ], }; return newBatch; } else E{ return batch; } }, {}); const topicMessages: TopicMessages[] = Object.entries(batch).map( ([topic, messages]) => ({ topic, messages, }) ); if (topicMessages.length > 0) { const producer = await producerP; await producer.sendBatch({ topicMessages, acks: -1 }); } }; |