@addapptables/microservice/dist/bus-adapters/rabbitmq-bus.adapter.js

addapptables microservice

"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);
};
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
    return new (P || (P = Promise))(function (resolve, reject) {
        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
        step((generator = generator.apply(thisArg, _arguments || [])).next());
    });
};
var RabbitMQBusAdapter_1;
Object.defineProperty(exports, "__esModule", { value: true });
exports.RabbitMQBusAdapter = void 0;
const R = require("ramda");
const load_package_util_1 = require("../utils/load-package.util");
const logger_service_1 = require("../logger/services/logger.service");
const common_1 = require("@nestjs/common");
let RabbitMQBusAdapter = RabbitMQBusAdapter_1 = class RabbitMQBusAdapter {
    constructor(logger) {
        this.logger = logger;
        this.options = {};
        this.subscribeHandle = (handle) => (message) => __awaiter(this, void 0, void 0, function* () {
            try {
                this.logger.verbose('handle message');
                yield handle(JSON.parse(message.content.toString()));
                this.subChannel.ack(message);
                this.logger.verbose('ack message');
            }
            catch (error) {
                this.logger.error('subscribe handle:', error);
                this.subChannel.nack(message);
            }
        });
        this.queueDefault = R.mergeDeepRight({
            durable: true,
            autoDelete: false,
            exclusive: false,
        });
        this.subscribeDefault = R.mergeDeepRight({
            noAck: false,
            exclusive: false,
        });
        this.exchangeDefault = R.mergeDeepRight({
            durable: true,
            autoDelete: false,
        });
        this.publishDefault = R.mergeDeepRight({
            persistent: true,
        });
        logger.setContext(RabbitMQBusAdapter_1.name);
        this.rabbitmqPackage = (0, load_package_util_1.loadPackage)('amqplib', RabbitMQBusAdapter_1.name);
    }
    onInit() {
        return __awaiter(this, void 0, void 0, function* () {
            this.logger.verbose('init connection');
            this.rabbitmq = yield this.rabbitmqPackage.connect(this.options.host);
            this.subChannel = yield this.rabbitmq.createChannel();
            this.pubChannel = yield this.rabbitmq.createChannel();
        });
    }
    publish(data, options) {
        return __awaiter(this, void 0, void 0, function* () {
            options = options || {};
            const { action, context } = data;
            const exchange = R.or(context, this.options.exchange);
            const type = R.or(this.options.type, 'topic');
            yield this.pubChannel
                .assertExchange(exchange, type, this.exchangeDefault(options.exchange || {}))
                .then(() => this.pubChannel.publish(exchange, action, Buffer.from(JSON.stringify(data)), this.publishDefault(options.publish || {})));
        });
    }
    subscribe(handle, data, options) {
        return __awaiter(this, void 0, void 0, function* () {
            options = options || {};
            const { action, context } = data;
            const exchange = R.or(context, this.options.exchange);
            const service = R.or(options.service, this.options.service);
            const queue = `${service}.${exchange}.${action}`;
            const type = R.or(this.options.type, 'topic');
            const prefetch = 1;
            this.subChannel.prefetch(R.or(options.prefetch, prefetch));
            yield this.subChannel
                .assertExchange(exchange, type, this.exchangeDefault(options.exchange || {}))
                .then(() => this.subChannel.assertQueue(queue, this.queueDefault(options.queue || {})))
                .then(() => this.subChannel.bindQueue(queue, exchange, action))
                .then(() => this.subChannel.consume(queue, this.subscribeHandle(handle), this.subscribeDefault(options.subscribe || {})));
        });
    }
    setOptions(options) {
        this.options = options;
    }
    close() {
        return __awaiter(this, void 0, void 0, function* () {
            this.logger.verbose('close connection');
            yield this.rabbitmq.close();
        });
    }
};
RabbitMQBusAdapter = RabbitMQBusAdapter_1 = __decorate([
    (0, common_1.Injectable)({ scope: common_1.Scope.TRANSIENT }),
    __metadata("design:paramtypes", [logger_service_1.CraftsLogger])
], RabbitMQBusAdapter);
exports.RabbitMQBusAdapter = RabbitMQBusAdapter;
//# sourceMappingURL=rabbitmq-bus.adapter.js.map