evtstore/src/domain-v2.js

Event Sourcing with Node.JS

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.createDomainV2 = exports.createDomain = void 0;
const create_aggregate_1 = require("./create-aggregate");
const event_handler_1 = require("./event-handler");
function createDomain(opts, aggregates) {
    return createDomainV2(opts, aggregates);
}
exports.createDomain = createDomain;
function createDomainV2(opts, aggregates) {
    const _store = {};
    for (const [key, storableAgg] of Object.entries(aggregates)) {
        const aggOpts = {
            ...storableAgg,
            provider: opts.provider,
            useCache: opts.useCache,
        };
        _store[key] =
            aggOpts.persistAggregate && aggOpts.version
                ? (0, create_aggregate_1.createPersistedAggregate)(aggOpts)
                : (0, create_aggregate_1.createProvidedAggregate)(aggOpts);
    }
    const createHandler = (bookmark, streams, options = {}) => {
        const callbacks = new Map();
        const handler = new event_handler_1.EventHandler({
            bookmark,
            provider: opts.provider,
            stream: streams,
            ...options,
        });
        const handlerCallback = (id, event, meta) => {
            const cb = callbacks.get(`${meta.stream}-${event.type}`);
            if (!cb)
                return;
            return cb(id, event, meta);
        };
        const handle = (stream, event, callback) => {
            callbacks.set(`${stream}-${event}`, callback);
            handler.handle(event, handlerCallback);
        };
        return {
            handle,
            name: handler.name,
            start: handler.start,
            stop: handler.stop,
            runOnce: handler.runOnce,
            run: handler.run,
            setPosition: handler.setPosition,
            getPosition: handler.getPosition,
            reset: handler.reset,
            __handler: handler,
        };
    };
    const domain = _store;
    return {
        domain,
        createHandler,
    };
}
exports.createDomainV2 = createDomainV2;
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