event-driven/build/publisher.js

makes building event-driven-architecture easy

"use strict";
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());
    });
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.Publisher = void 0;
const models_1 = require("./backend/models");
const nats_1 = require("nats");
const index_1 = require("./index");
const sc = nats_1.StringCodec();
const Publisher = ({ config, subject }) => {
    return (data, uniqueId) => new Promise((resolve, reject) => __awaiter(void 0, void 0, void 0, function* () {
        const { parentIds, clientGroup, durableName } = config;
        try {
            const event = models_1.createEvent({
                parentIds,
                durableName,
                clientGroup,
                subject,
                data,
            });
            const eventId = event._id;
            const h = nats_1.headers();
            h.append('eventId', eventId.toString());
            if (uniqueId)
                h.append('Nats-Msg-Id', uniqueId);
            const result = yield config.js.publish(subject, sc.encode(JSON.stringify(data)), { headers: h });
            if (result.duplicate)
                return;
            if (index_1._showEventPublishes)
                console.log(`Event! - [${subject}]`);
            resolve({ eventId });
        }
        catch (err) {
            console.error('###PUBLISHER ERROR###', err, parentIds, clientGroup, durableName, data);
            reject(err);
        }
    }));
};
exports.Publisher = Publisher;