@nestjstools/messaging-google-pubsub-extension/lib/message-bus/google-pub-sub-message.bus.js

Extension to handle messages and dispatch them over Google PubSub

"use strict";
var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
    var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
    if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
    else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
    return c > 3 && r && Object.defineProperty(target, key, r), r;
};
var __metadata = (this && this.__metadata) || function (k, v) {
    if (typeof Reflect === "object" && typeof Reflect.metadata === "function") return Reflect.metadata(k, v);
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.GooglePubSubMessageBus = void 0;
const common_1 = require("@nestjs/common");
const google_pub_sub_channel_1 = require("../channel/google-pub-sub.channel");
const buffer_1 = require("buffer");
const const_1 = require("../const");
const google_pub_sub_message_options_1 = require("../message/google-pub-sub-message-options");
let GooglePubSubMessageBus = class GooglePubSubMessageBus {
    channel;
    constructor(channel) {
        this.channel = channel;
    }
    async dispatch(message) {
        const messageOptions = message.messageOptions;
        if (messageOptions !== undefined && !(messageOptions instanceof google_pub_sub_message_options_1.GooglePubSubMessageOptions)) {
            throw new Error(`Message options must be a ${google_pub_sub_message_options_1.GooglePubSubMessageOptions.name} object`);
        }
        const topic = this.channel.pubSubManager.topic(this.channel.config.topicName);
        const serializedMessage = JSON.stringify(message.message);
        const data = buffer_1.Buffer.from(serializedMessage);
        if (messageOptions instanceof google_pub_sub_message_options_1.GooglePubSubMessageOptions) {
            const attributes = { [const_1.ROUTING_KEY_ATTRIBUTE_NAME]: message.messageRoutingKey, ...messageOptions.attributes };
            await topic.publishMessage({ data, attributes });
            return;
        }
        await topic.publishMessage({ data, attributes: { [const_1.ROUTING_KEY_ATTRIBUTE_NAME]: message.messageRoutingKey } });
    }
};
exports.GooglePubSubMessageBus = GooglePubSubMessageBus;
exports.GooglePubSubMessageBus = GooglePubSubMessageBus = __decorate([
    (0, common_1.Injectable)(),
    __metadata("design:paramtypes", [google_pub_sub_channel_1.GooglePubSubChannel])
], GooglePubSubMessageBus);
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