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src/server.ts

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+import "reflect-metadata";
+import { createServer } from "http";
+
+import { config } from "dotenv";
+import { Container } from "inversify";
+
+config();
+
+import { App } from "./app";
+import { Logger } from "./core/logging/logger";
+import { connectMongo } from "./db/connection";
+import { IOCTYPES } from "./IOC/ioc.types";
+import { ChatGateway } from "./modules/chat/chat.gateway";
+import { StartWorker } from "./queues";
+import { gracefulShutdown } from "./utils/shutdown.utils";
+
+const PORT = parseInt(process.env.PORT) || 4000;
+const logger = new Logger();
+async function bootStrap() {
+  try {
+    await connectMongo();
+    logger.info("mongodb connected");
+    //
+    const container = new Container();
+    const app = new App(container).Build();
+    const server = createServer(app);
+    //
+    const chatGateway = container.get<ChatGateway>(IOCTYPES.ChatGateway);
+    const wsServer = chatGateway.initialize(server);
+
+    const worker = await StartWorker();
+
+    //
+    server.listen(PORT, "0.0.0.0", () => {
+      logger.info(`listening on http://localhost:${PORT}`);
+      logger.info(`swagger documentation is serving on http://localhost:${PORT}/api-docs`);
+    });
+
+    process.on("SIGINT", () => gracefulShutdown("SIGINT", server, wsServer, worker[0], logger));
+
+    process.on("SIGTERM", () => gracefulShutdown("SIGTERM", server, wsServer, worker[0], logger));
+  } catch (error) {
+    logger.error("Error starting the server.", error);
+    process.exit(1);
+  }
+}
+
+bootStrap();
+
+process.on("uncaughtException", function (err) {
+  logger.error("Uncaught exception", err);
+});
+
+process.on("unhandledRejection", (reason, promise) => {
+  logger.error("Unhandled Rejection at: Promise", { promise, reason });
+});