feat: add middleware preset options to CLI and project form for enhanced application template customization

Author: rsaz

src/new/cli.ts

@@ -13,6 +13,14 @@ const packageManagers: Array<string> = [
 	...(process.platform !== "win32" ? ["bun"] : []),
 ];
 
+const middlewarePresets: Array<string> = [
+	"api",
+	"web",
+	"graphql",
+	"microservice",
+	"minimal",
+];
+
 const commandOptions = (yargs: Argv): Argv => {
 	return yargs
 		.positional("project-name", {
@@ -31,13 +39,20 @@ const commandOptions = (yargs: Argv): Argv => {
 			choices: packageManagers,
 			alias: "p",
 		})
+		.option("preset", {
+			describe: "Middleware preset for Application template",
+			type: "string",
+			choices: middlewarePresets,
+			alias: "s",
+		})
 		.option("directory", {
 			describe: "The directory for new project",
 			type: "string",
 			alias: "d",
 		})
 		.implies("package-manager", "template")
-		.implies("template", "package-manager");
+		.implies("template", "package-manager")
+		.implies("preset", "template");
 };
 
 const checkNodeVersion = (): void => {
@@ -61,12 +76,14 @@ const createProject = (): CommandModule<CommandModuleArgs, any> => {
 			packageManager,
 			template,
 			directory,
+			preset,
 		}) => {
 			checkNodeVersion();
 			return await projectForm(projectName, [
 				packageManager,
 				template,
 				directory,
+				preset,
 			]);
 		},
 	};

src/new/form.ts

@@ -180,8 +180,25 @@ const enum PackageManager {
 	bun = "bun",
 }
 
+/**
+ * Middleware presets for Application template
+ */
+enum MiddlewarePreset {
+	api = "API :: REST API with security, compression, and auto-logging. (Recommended)",
+	web = "Web :: Full web app with cookies and session support.",
+	graphql = "GraphQL :: Optimized for GraphQL APIs.",
+	microservice = "Microservice :: Minimal setup for microservices.",
+	minimal = "Minimal :: Just request parsing, customize everything yourself.",
+}
+
 type TemplateKeys = keyof typeof Template;
-type ProjectFormArgs = [PackageManager, TemplateKeys, string];
+type MiddlewarePresetKeys = keyof typeof MiddlewarePreset;
+type ProjectFormArgs = [
+	PackageManager,
+	TemplateKeys,
+	string,
+	MiddlewarePresetKeys,
+];
 
 /**
  * Template folder mapping
@@ -191,6 +208,44 @@ const TEMPLATE_FOLDERS: Record<string, string> = {
 	Micro: "micro",
 };
 
+/**
+ * Middleware preset mapping to code
+ */
+const PRESET_CODE: Record<string, string> = {
+	API: `this.Middleware.applyPreset("api");`,
+	Web: `this.Middleware.applyPreset("web");`,
+	GraphQL: `this.Middleware.applyPreset("graphql");`,
+	Microservice: `this.Middleware.applyPreset("microservice");`,
+	Minimal: `this.Middleware.parse();`,
+};
+
+/**
+ * Apply the selected middleware preset to the generated app.ts
+ */
+function applyMiddlewarePreset(directory: string, preset: string): void {
+	const appTsPath = path.join(directory, "src", "app.ts");
+
+	if (!fs.existsSync(appTsPath)) {
+		return;
+	}
+
+	// Extract preset name from selection (e.g., "API :: ..." -> "API")
+	const presetMatch = preset.match(/^(\w+) ::/);
+	const presetName = presetMatch ? presetMatch[1] : "API";
+
+	const presetCode = PRESET_CODE[presetName] || PRESET_CODE["API"];
+
+	let content = fs.readFileSync(appTsPath, "utf-8");
+
+	// Replace the placeholder with the preset code
+	content = content.replace(
+		/\/\/ __MIDDLEWARE_PRESET_PLACEHOLDER__/,
+		presetCode,
+	);
+
+	fs.writeFileSync(appTsPath, content, "utf-8");
+}
+
 /**
  * Enable local template mode for testing
  * Set to true to use local templates instead of GitHub
@@ -221,20 +276,22 @@ const projectForm = async (
 		name: string;
 		packageManager: string;
 		template: Template;
+		preset?: MiddlewarePreset;
 		confirm: boolean;
 	};
 
-	const [packageManager, template, directory] = args;
+	const [packageManager, template, directory, preset] = args;
 
 	if (packageManager && template) {
 		answer = {
 			name: projectName,
 			packageManager: packageManager,
 			template: Template[template],
+			preset: preset ? MiddlewarePreset[preset] : undefined,
 			confirm: true,
 		};
 	} else {
-		answer = await inquirer.prompt([
+		const baseAnswers = await inquirer.prompt([
 			{
 				type: "input",
 				name: "name",
@@ -266,13 +323,43 @@ const projectForm = async (
 					"Micro :: A minimalistic template for building micro APIs and serverless functions.",
 				],
 			},
+		]);
+
+		// Only show preset selection for Application template
+		let presetAnswer: { preset?: MiddlewarePreset } = {};
+		if (baseAnswers.template.startsWith("Application")) {
+			presetAnswer = await inquirer.prompt([
+				{
+					type: "list",
+					name: "preset",
+					message: "Select a middleware preset",
+					choices: [
+						`API :: REST API with security, compression, and auto-logging. (${chalk.yellow(
+							"Recommended",
+						)})`,
+						"Web :: Full web app with cookies and session support.",
+						"GraphQL :: Optimized for GraphQL APIs.",
+						"Microservice :: Minimal setup for microservices.",
+						"Minimal :: Just request parsing, customize everything yourself.",
+					],
+				},
+			]);
+		}
+
+		const confirmAnswer = await inquirer.prompt([
 			{
 				type: "confirm",
 				name: "confirm",
 				message: "Do you want to create this project?",
 				default: true,
 			},
 		]);
+
+		answer = {
+			...baseAnswers,
+			...presetAnswer,
+			...confirmAnswer,
+		};
 	}
 
 	if (directory) {
@@ -380,6 +467,11 @@ const projectForm = async (
 			progressBar.update(90, { doing: "Finalizing project" });
 		}
 
+		// Apply middleware preset for Application template
+		if (answer.preset && templateFolder === "application") {
+			applyMiddlewarePreset(answer.name, answer.preset);
+		}
+
 		changePackageName({
 			directory: answer.name,
 			name: projectName,