@awesomeniko/kafka-trail/dist/kafka/consumer-handler.js

A Node.js library for managing message queue with Kafka

import { context, SpanKind, trace } from "@opentelemetry/api";
export const KTHandler = (params) => {
    return {
        topic: params.topic,
        run: async (payload, ctx, publisher, kafkaTopicParams) => {
            const tracer = trace.getTracer(`kafka-trail`, '1.0.0');
            const { partition, lastOffset } = kafkaTopicParams;
            const span = tracer.startSpan(`kafka-trail: handler ${params.topic.topicSettings.topic}`, {
                kind: SpanKind.CONSUMER,
                attributes: {
                    'messaging.system': 'kafka',
                    'messaging.destination': params.topic.topicSettings.topic,
                    'messaging.kafka.partition': partition,
                    'messaging.kafka.offset': lastOffset,
                    'messaging.kafka.payload': JSON.stringify(payload),
                },
            });
            await context.with(trace.setSpan(context.active(), span), async () => {
                await params.run(payload, ctx, publisher, kafkaTopicParams);
                span.end();
            });
        },
    };
};
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