@nestjs-cqrs-eventsourcing/core/src/scripts/reconstruct-view-db.js

Event sourcing for nestjs CQRS

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.ReconstructViewDb = void 0;
const core_1 = require("@nestjs-cqrs-eventsourcing/core");
const view_updater_1 = require("../view/view-updater");
class ReconstructViewDb {
    static async run(app) {
        const sleep = async (ms) => new Promise((resolve) => setTimeout(resolve, ms));
        const eventStore = app.get(core_1.EventstoreProvider);
        const viewUpdater = app.get(view_updater_1.ViewUpdater);
        while (!eventStore.isInitiated()) {
            await sleep(100);
        }
        let event;
        let index = 0;
        while (event = await eventStore.getEvent(index)) {
            await viewUpdater.run(event);
            index += 1;
        }
        console.log('View db has been restored!');
    }
}
exports.ReconstructViewDb = ReconstructViewDb;