101 lines
3.3 KiB
TypeScript
101 lines
3.3 KiB
TypeScript
import cors, { type CorsOptions } from "cors";
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import express, { type Application } from "express";
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import helmet from "helmet";
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import responseTime from "response-time";
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import type { ConfigType } from "./config";
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// ❗️ No cargamos dotenv aquí. Debe hacerse en el entrypoint o en ./config.
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// dotenv.config();
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import { logger } from "./lib/logger";
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export function createApp(config: ConfigType): Application {
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const app = express();
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// ───────────────────────────────────────────────────────────────────────────
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// CORS
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const devCors: CorsOptions = {
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// En desarrollo reflejamos el Origin entrante (permite credenciales)
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origin: true,
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credentials: true,
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methods: ["GET", "POST", "PUT", "DELETE", "OPTIONS"],
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exposedHeaders: [
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"Content-Disposition",
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"Content-Type",
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"Content-Length",
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"X-Total-Count",
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"Pagination-Count",
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"Pagination-Page",
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"Pagination-Limit",
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],
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};
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const prodCors: CorsOptions = {
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origin: config.server.frontendUrl,
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credentials: true,
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methods: ["GET", "POST", "PUT", "DELETE", "OPTIONS"],
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exposedHeaders: [
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"Content-Disposition",
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"Content-Type",
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"Content-Length",
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"X-Total-Count",
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"Pagination-Count",
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"Pagination-Page",
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"Pagination-Limit",
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],
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};
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app.use(cors(config.flags.isDev ? devCors : prodCors));
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app.options("*", cors(config.flags.isDev ? devCors : prodCors));
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app.set("port", config.server.port ?? 3002);
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// Oculta la cabecera x-powered-by
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app.disable("x-powered-by");
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// Desactiva ETag correctamente a nivel de Express
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app.set("etag", false);
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// ───────────────────────────────────────────────────────────────────────────
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// Parsers
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app.use(express.json());
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app.use(express.text());
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app.use(express.urlencoded({ extended: true }));
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// Métrica de tiempo de respuesta
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app.use(responseTime());
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// ───────────────────────────────────────────────────────────────────────────
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// Seguridad HTTP
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app.use(helmet());
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// ───────────────────────────────────────────────────────────────────────────
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// Política de caché por defecto (no almacenamiento)
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app.use((_, res, next) => {
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res.setHeader("Cache-Control", "no-store, no-cache, must-revalidate, max-age=0");
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res.setHeader("Pragma", "no-cache");
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res.setHeader("Expires", "0");
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next();
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});
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// Inicializar Auth Provider (placeholder)
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app.use((_, __, next) => {
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// authProvider.initialize();
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next();
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});
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// Logging de cada request
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app.use((req, _, next) => {
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logger.info(`▶️ Incoming request ${req.method} to ${req.path}`);
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next();
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});
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// Gestión global de errores.
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// Siempre al final de la cadena de middlewares
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// y después de las rutas.
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//app.use(globalErrorHandler);
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return app;
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}
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