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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,27 +1,156 @@ | ||
| import express from "express"; | ||
| import type { Application } from "express"; | ||
| import LocalConfig from "../configs/LocalConfig"; | ||
| import Logger from "../logger"; | ||
| import Database from "./Database"; | ||
| import ExpressApp from "./ExpressApp"; | ||
| import ExceptionHandler from "../exceptions/Handler"; | ||
| import Http from "../middlewares/Http"; | ||
| import CORS from "../middlewares/CORS"; | ||
| import Morgan from "../middlewares/Morgan"; | ||
| import Routes from "./routes"; | ||
| import FirebaseConfig from "../configs/FirebaseConfig"; | ||
| import SwaggerDocs from "src/configs/swagger"; | ||
| import { MongoDB } from "../configs/db"; | ||
|
|
||
| class App { | ||
| private db: Database; | ||
| /** | ||
| * @name ExpressApp | ||
| * @description Custom Express App Class Definition | ||
| */ | ||
| class ExpressApp { | ||
| public express: Application; | ||
| private _server: any; | ||
|
|
||
| /** | ||
| * Initializes the express server | ||
| */ | ||
| constructor() { | ||
| this.db = Database.getInstance(); | ||
| Logger.getInstance().info("App :: Initializing..."); | ||
|
|
||
| this.express = express(); | ||
|
|
||
| this.mountLogger(); | ||
| this.mountDotEnv(); | ||
| this.mountMiddlewares(); | ||
| this.mouteRoutes(); | ||
| this.registerHandlers(); | ||
| this.connectToDB(); | ||
| this.mountSwagger(); | ||
|
|
||
| Logger.getInstance().info("App :: Initialized"); | ||
| } | ||
|
|
||
| /** | ||
| * Mount all the environmental variables | ||
| */ | ||
| private mountDotEnv(): void { | ||
| Logger.getInstance().info("Config :: Loading..."); | ||
|
|
||
| this.express = LocalConfig.init(this.express); | ||
| this.express = FirebaseConfig.init(this.express); | ||
| } | ||
|
|
||
| /** | ||
| * Mount logger to the app | ||
| */ | ||
| private mountLogger(): void { | ||
| Logger._init(); | ||
|
|
||
| Logger.getInstance().info("Logger :: Mounted"); | ||
| } | ||
|
|
||
| /** | ||
| * Mount Swagger | ||
| */ | ||
| private mountSwagger(): void { | ||
| Logger.getInstance().info("Swagger :: Initializing..."); | ||
|
|
||
| this.express = SwaggerDocs.init(this.express); | ||
| } | ||
|
|
||
| public _init = async (): Promise<void> => { | ||
| if (this.db) { | ||
| await this.db._connect(); | ||
| /** | ||
| * Mounts all the defined middlewares | ||
| */ | ||
| private mountMiddlewares(): void { | ||
| Logger.getInstance().info("App :: Registering middlewares..."); | ||
|
|
||
| if (this.db.isConnected) { | ||
| ExpressApp._init(); | ||
| } else { | ||
| Logger.error("App :: Database is not connected"); | ||
| } | ||
| } else { | ||
| Logger.error("App :: Database could't initialized"); | ||
| // Mount basic express apis middleware | ||
| this.express = Http.mount(this.express); | ||
|
|
||
| // Registering Morgan Middleware | ||
| this.express = Morgan.mount(this.express); | ||
|
|
||
| // Check if CORS is enabled | ||
| if (LocalConfig.getConfig().CORS_ENABLED) { | ||
| // Mount CORS middleware | ||
| this.express = CORS.mount(this.express); | ||
| } | ||
| }; | ||
|
|
||
| Logger.getInstance().info("App :: Middlewares registered"); | ||
| } | ||
|
|
||
| /** | ||
| * Register all the handlers | ||
| */ | ||
| private registerHandlers(): void { | ||
| Logger.getInstance().info("App :: Registering handlers..."); | ||
|
|
||
| // Registering Exception / Error Handlers | ||
| this.express.use(ExceptionHandler.logErrors); | ||
| this.express.use(ExceptionHandler.clientErrorHandler); | ||
| this.express.use(ExceptionHandler.errorHandler); | ||
| this.express = ExceptionHandler.notFoundHandler(this.express); | ||
|
|
||
| Logger.getInstance().info("App :: Handlers registered"); | ||
| } | ||
|
|
||
| /** | ||
| * Mount all the routes | ||
| */ | ||
| private mouteRoutes(): void { | ||
| this.express = Routes.mountApi(this.express); | ||
| Logger.getInstance().info("Routes :: API routes mounted"); | ||
| } | ||
|
|
||
| /** | ||
| * Connect to Database | ||
| */ | ||
| private connectToDB(): void { | ||
| Logger.getInstance().info("Database :: Connecting..."); | ||
| MongoDB.getInstance().connect(); | ||
| } | ||
|
|
||
| /** | ||
| * Starts the express server | ||
| */ | ||
| public _init(): void { | ||
| Logger.getInstance().info("Server :: Starting..."); | ||
|
|
||
| const port = LocalConfig.getConfig().PORT || 5000; | ||
|
|
||
| // Start the server on the specified port | ||
| this._server = this.express | ||
| .listen(port, () => { | ||
| Logger.getInstance().info( | ||
| `Server :: Running @ 'http://localhost:${port}'` | ||
| ); | ||
| Logger.getInstance().info( | ||
| `Swagger docs available at http://localhost:${port}/api-docs` | ||
| ); | ||
| }) | ||
| .on("error", (_error) => { | ||
| Logger.getInstance().error("Error: ", _error.message); | ||
| }); | ||
| } | ||
|
|
||
| /** | ||
| * Close the express server | ||
| */ | ||
| public _close(): void { | ||
| Logger.getInstance().info("Server :: Stopping server..."); | ||
|
|
||
| this._server.close(function () { | ||
| process.exit(1); | ||
| }); | ||
| } | ||
| } | ||
|
|
||
| export default App; | ||
| export default new ExpressApp(); |
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