@sentzunhat/zacatl/build/esm/service/layers/application/application.js

A modular, high-performance TypeScript microservice framework for Node.js, featuring layered architecture, dependency injection, and robust validation for building scalable APIs and distributed systems.

import { resolveDependencies } from '../../../dependency-injection/index.js';
import { InternalServerError } from '../../../error/index.js';
import { getContainer } from '../../../dependency-injection/container.js';
export class Application {
    config;
    constructor(config) {
        this.config = config;
        this.register();
    }
    register() {
        if (this.config.entryPoints.rest != null) {
            this.registerRestEntryPoints();
        }
    }
    registerRestEntryPoints() {
        const restEntryPoints = this.config.entryPoints.rest;
        if (restEntryPoints == null) {
            return;
        }
        const { hooks: restHooks, routes: restRoutes } = restEntryPoints;
        if (restHooks != null && restHooks.length > 0) {
            for (const hook of restHooks) {
                if (!getContainer().isRegistered(hook)) {
                    getContainer().registerSingleton(hook, hook);
                }
            }
        }
        if (restRoutes != null && restRoutes.length > 0) {
            for (const route of restRoutes) {
                if (!getContainer().isRegistered(route)) {
                    getContainer().registerSingleton(route, route);
                }
            }
        }
        const hooks = restHooks != null ? resolveDependencies(restHooks) : [];
        const routes = restRoutes != null ? resolveDependencies(restRoutes) : [];
        if (hooks.length !== (restHooks != null ? restHooks.length : 0) ||
            routes.length !== (restRoutes != null ? restRoutes.length : 0)) {
            throw new InternalServerError({
                message: 'Failed to register all REST entry point dependencies',
                reason: 'Not all REST hooks and routes could be resolved from DI container',
                component: 'ApplicationLayer',
                operation: 'register',
                metadata: {
                    expectedHooks: restHooks != null ? restHooks.length : 0,
                    resolvedHooks: hooks.length,
                    expectedRoutes: restRoutes != null ? restRoutes.length : 0,
                    resolvedRoutes: routes.length,
                },
            });
        }
    }
}
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