@nestjs/microservices/serializers/nats-record.serializer.js

Nest - modern, fast, powerful node.js web framework (@microservices)

import { isObject } from '@nestjs/common/internal';
import { NatsRecord, NatsRecordBuilder } from '../record-builders/index.js';
export class NatsRecordSerializer {
    serialize(packet) {
        if (packet?.response instanceof NatsRecord) {
            const record = packet.response;
            return {
                data: JSON.stringify({ ...packet, response: record.data }),
                headers: record.headers,
            };
        }
        const natsMessage = packet?.data && isObject(packet.data) && packet.data instanceof NatsRecord
            ? packet.data
            : new NatsRecordBuilder(packet?.data)
                .setHeaders(packet?.headers)
                .build();
        return {
            data: JSON.stringify({ ...packet, data: natsMessage.data }),
            headers: natsMessage.headers,
        };
    }
}