Enhance API routing and health check functionality

- Added ApiRouteTemplate as a base class for defining API routes
- Implemented HealthCheckApi for health check endpoint management
- Introduced IApiRoute interface for consistent route handling
- Updated UserApiRoute to align with new routing structure
- Added HealthCheck class for health status retrieval
- Improved dependency management with new types and interfaces

__test__/di/WhenManagingDependencies.test.ts

@@ -1,6 +1,6 @@
-import { describe, it, expect, beforeEach } from 'bun:test';
-import { DependencyManager } from '../../src/di/DependencyManager';
-import { Logger, Database, UserService } from '../mocks';
+import {describe, it, expect, beforeEach} from 'bun:test';
+import {DependencyManager} from '../../src/di/DependencyManager';
+import {Logger, Database, UserService} from '../mocks';
 
 describe('When Managing Dependencies', () => {
   let dependencyManager: DependencyManager;

bun.lock

@@ -3,16 +3,21 @@
   "workspaces": {
     "": {
       "name": "myoopapp",
+      "dependencies": {
+        "@techniker-me/tools": "2025.0.16",
+      },
       "devDependencies": {
-        "@eslint/js": "^9.38.0",
-        "@eslint/json": "^0.13.2",
-        "@eslint/markdown": "^7.5.0",
+        "@eslint/js": "9.38.0",
+        "@eslint/json": "0.13.2",
+        "@eslint/markdown": "7.5.0",
         "@types/bun": "latest",
-        "eslint": "^9.38.0",
-        "globals": "^16.4.0",
-        "jiti": "^2.6.1",
+        "@types/express": "5.0.5",
+        "@types/morgan": "1.9.10",
+        "eslint": "9.38.0",
+        "globals": "16.4.0",
+        "jiti": "2.6.1",
         "prettier": "3.6.2",
-        "typescript-eslint": "^8.46.2",
+        "typescript-eslint": "8.46.2",
       },
       "peerDependencies": {
         "typescript": "5.9.3",
@@ -58,22 +63,46 @@
 
     "@nodelib/fs.walk": ["@nodelib/fs.walk@1.2.8", "", { "dependencies": { "@nodelib/fs.scandir": "2.1.5", "fastq": "^1.6.0" } }, "sha512-oGB+UxlgWcgQkgwo8GcEGwemoTFt3FIO9ababBmaGwXIoBKZ+GTy0pP185beGg7Llih/NSHSV2XAs1lnznocSg=="],
 
+    "@techniker-me/tools": ["@techniker-me/tools@2025.0.16", "https://npm.techniker.me/@techniker-me/tools/-/tools-2025.0.16.tgz", {}, "sha512-Ul2yj1vd4lCO8g7IW2pHkAsdeRVEUMqGpiIvSedCc1joVXEWPbh4GESW83kMHtisjFjjlZIzb3EVlCE0BCiBWQ=="],
+
+    "@types/body-parser": ["@types/body-parser@1.19.6", "", { "dependencies": { "@types/connect": "*", "@types/node": "*" } }, "sha512-HLFeCYgz89uk22N5Qg3dvGvsv46B8GLvKKo1zKG4NybA8U2DiEO3w9lqGg29t/tfLRJpJ6iQxnVw4OnB7MoM9g=="],
+
     "@types/bun": ["@types/bun@1.3.1", "", { "dependencies": { "bun-types": "1.3.1" } }, "sha512-4jNMk2/K9YJtfqwoAa28c8wK+T7nvJFOjxI4h/7sORWcypRNxBpr+TPNaCfVWq70tLCJsqoFwcf0oI0JU/fvMQ=="],
 
+    "@types/connect": ["@types/connect@3.4.38", "", { "dependencies": { "@types/node": "*" } }, "sha512-K6uROf1LD88uDQqJCktA4yzL1YYAK6NgfsI0v/mTgyPKWsX1CnJ0XPSDhViejru1GcRkLWb8RlzFYJRqGUbaug=="],
+
     "@types/debug": ["@types/debug@4.1.12", "", { "dependencies": { "@types/ms": "*" } }, "sha512-vIChWdVG3LG1SMxEvI/AK+FWJthlrqlTu7fbrlywTkkaONwk/UAGaULXRlf8vkzFBLVm0zkMdCquhL5aOjhXPQ=="],
 
     "@types/estree": ["@types/estree@1.0.8", "", {}, "sha512-dWHzHa2WqEXI/O1E9OjrocMTKJl2mSrEolh1Iomrv6U+JuNwaHXsXx9bLu5gG7BUWFIN0skIQJQ/L1rIex4X6w=="],
 
+    "@types/express": ["@types/express@5.0.5", "", { "dependencies": { "@types/body-parser": "*", "@types/express-serve-static-core": "^5.0.0", "@types/serve-static": "^1" } }, "sha512-LuIQOcb6UmnF7C1PCFmEU1u2hmiHL43fgFQX67sN3H4Z+0Yk0Neo++mFsBjhOAuLzvlQeqAAkeDOZrJs9rzumQ=="],
+
+    "@types/express-serve-static-core": ["@types/express-serve-static-core@5.1.0", "", { "dependencies": { "@types/node": "*", "@types/qs": "*", "@types/range-parser": "*", "@types/send": "*" } }, "sha512-jnHMsrd0Mwa9Cf4IdOzbz543y4XJepXrbia2T4b6+spXC2We3t1y6K44D3mR8XMFSXMCf3/l7rCgddfx7UNVBA=="],
+
+    "@types/http-errors": ["@types/http-errors@2.0.5", "", {}, "sha512-r8Tayk8HJnX0FztbZN7oVqGccWgw98T/0neJphO91KkmOzug1KkofZURD4UaD5uH8AqcFLfdPErnBod0u71/qg=="],
+
     "@types/json-schema": ["@types/json-schema@7.0.15", "", {}, "sha512-5+fP8P8MFNC+AyZCDxrB2pkZFPGzqQWUzpSeuuVLvm8VMcorNYavBqoFcxK8bQz4Qsbn4oUEEem4wDLfcysGHA=="],
 
     "@types/mdast": ["@types/mdast@4.0.4", "", { "dependencies": { "@types/unist": "*" } }, "sha512-kGaNbPh1k7AFzgpud/gMdvIm5xuECykRR+JnWKQno9TAXVa6WIVCGTPvYGekIDL4uwCZQSYbUxNBSb1aUo79oA=="],
 
+    "@types/mime": ["@types/mime@1.3.5", "", {}, "sha512-/pyBZWSLD2n0dcHE3hq8s8ZvcETHtEuF+3E7XVt0Ig2nvsVQXdghHVcEkIWjy9A0wKfTn97a/PSDYohKIlnP/w=="],
+
+    "@types/morgan": ["@types/morgan@1.9.10", "", { "dependencies": { "@types/node": "*" } }, "sha512-sS4A1zheMvsADRVfT0lYbJ4S9lmsey8Zo2F7cnbYjWHP67Q0AwMYuuzLlkIM2N8gAbb9cubhIVFwcIN2XyYCkA=="],
+
     "@types/ms": ["@types/ms@2.1.0", "", {}, "sha512-GsCCIZDE/p3i96vtEqx+7dBUGXrc7zeSK3wwPHIaRThS+9OhWIXRqzs4d6k1SVU8g91DrNRWxWUGhp5KXQb2VA=="],
 
     "@types/node": ["@types/node@24.9.2", "", { "dependencies": { "undici-types": "~7.16.0" } }, "sha512-uWN8YqxXxqFMX2RqGOrumsKeti4LlmIMIyV0lgut4jx7KQBcBiW6vkDtIBvHnHIquwNfJhk8v2OtmO8zXWHfPA=="],
 
+    "@types/qs": ["@types/qs@6.14.0", "", {}, "sha512-eOunJqu0K1923aExK6y8p6fsihYEn/BYuQ4g0CxAAgFc4b/ZLN4CrsRZ55srTdqoiLzU2B2evC+apEIxprEzkQ=="],
+
+    "@types/range-parser": ["@types/range-parser@1.2.7", "", {}, "sha512-hKormJbkJqzQGhziax5PItDUTMAM9uE2XXQmM37dyd4hVM+5aVl7oVxMVUiVQn2oCQFN/LKCZdvSM0pFRqbSmQ=="],
+
     "@types/react": ["@types/react@19.2.2", "", { "dependencies": { "csstype": "^3.0.2" } }, "sha512-6mDvHUFSjyT2B2yeNx2nUgMxh9LtOWvkhIU3uePn2I2oyNymUAX1NIsdgviM4CH+JSrp2D2hsMvJOkxY+0wNRA=="],
 
+    "@types/send": ["@types/send@1.2.1", "", { "dependencies": { "@types/node": "*" } }, "sha512-arsCikDvlU99zl1g69TcAB3mzZPpxgw0UQnaHeC1Nwb015xp8bknZv5rIfri9xTOcMuaVgvabfIRA7PSZVuZIQ=="],
+
+    "@types/serve-static": ["@types/serve-static@1.15.10", "", { "dependencies": { "@types/http-errors": "*", "@types/node": "*", "@types/send": "<1" } }, "sha512-tRs1dB+g8Itk72rlSI2ZrW6vZg0YrLI81iQSTkMmOqnqCaNr/8Ek4VwWcN5vZgCYWbg/JJSGBlUaYGAOP73qBw=="],
+
     "@types/unist": ["@types/unist@3.0.3", "", {}, "sha512-ko/gIFJRv177XgZsZcBwnqJN5x/Gien8qNOn0D5bQU/zAzVf9Zt3BlcUiLqhV9y4ARk0GbT3tnUiPNgnTXzc/Q=="],
 
     "@typescript-eslint/eslint-plugin": ["@typescript-eslint/eslint-plugin@8.46.2", "", { "dependencies": { "@eslint-community/regexpp": "^4.10.0", "@typescript-eslint/scope-manager": "8.46.2", "@typescript-eslint/type-utils": "8.46.2", "@typescript-eslint/utils": "8.46.2", "@typescript-eslint/visitor-keys": "8.46.2", "graphemer": "^1.4.0", "ignore": "^7.0.0", "natural-compare": "^1.4.0", "ts-api-utils": "^2.1.0" }, "peerDependencies": { "@typescript-eslint/parser": "^8.46.2", "eslint": "^8.57.0 || ^9.0.0", "typescript": ">=4.8.4 <6.0.0" } }, "sha512-ZGBMToy857/NIPaaCucIUQgqueOiq7HeAKkhlvqVV4lm089zUFW6ikRySx2v+cAhKeUCPuWVHeimyk6Dw1iY3w=="],
@@ -400,6 +429,8 @@
 
     "@eslint/markdown/@eslint/plugin-kit": ["@eslint/plugin-kit@0.4.0", "", { "dependencies": { "@eslint/core": "^0.16.0", "levn": "^0.4.1" } }, "sha512-sB5uyeq+dwCWyPi31B2gQlVlo+j5brPlWx4yZBrEaRo/nhdDE8Xke1gsGgtiBdaBTxuTkceLVuVt/pclrasb0A=="],
 
+    "@types/serve-static/@types/send": ["@types/send@0.17.6", "", { "dependencies": { "@types/mime": "^1", "@types/node": "*" } }, "sha512-Uqt8rPBE8SY0RK8JB1EzVOIZ32uqy8HwdxCnoCOsYrvnswqmFZ/k+9Ikidlk/ImhsdvBsloHbAlewb2IEBV/Og=="],
+
     "@typescript-eslint/eslint-plugin/ignore": ["ignore@7.0.5", "", {}, "sha512-Hs59xBNfUIunMFgWAbGX5cq6893IbWg4KnrjbYwX3tx0ztorVgTDA6B2sxf8ejHJ4wz8BqGUMYlnzNBer5NvGg=="],
 
     "@typescript-eslint/typescript-estree/minimatch": ["minimatch@9.0.5", "", { "dependencies": { "brace-expansion": "^2.0.1" } }, "sha512-G6T0ZX48xgozx7587koeX9Ys2NYy6Gmv//P89sEte9V9whIapMNF4idKxnW2QtCcLiTWlb/wfCabAtAFWhhBow=="],

package.json

@@ -24,6 +24,7 @@
     "lint": "eslint --max-warnings 0 .",
     "prelint:fix": "bun run format",
     "lint:fix": "eslint --fix .",
+    "typecheck": "tsc --noEmit",
     "test": "bun test",
     "test:watch": "bun test --watch"
   },

src/Defaults.ts

@@ -1,4 +1,4 @@
-import { LoggingLevel } from './logger/LoggingLevel';
+import {LoggingLevel} from './logger/LoggingLevel';
 
 export default class Defaults {
   static get loggingLevel(): LoggingLevel {

src/api/ApiRouteTemplate.ts

@@ -0,0 +1,25 @@
+import type {RoutePath, RouteHandler} from '../net/http/HttpRouteManger.js';
+import type {IApiRoute} from './IApiRoute';
+
+export abstract class ApiRouteTemplate implements IApiRoute {
+  private readonly _getRoutes: Record<string, RouteHandler> = {};
+  private readonly _postRoutes: Record<string, RouteHandler> = {};
+  private readonly _putRoutes: Record<string, RouteHandler> = {};
+  private readonly _deleteRoutes: Record<string, RouteHandler> = {};
+
+  public getGETRoutes(): Record<RoutePath, RouteHandler> {
+    return this._getRoutes;
+  }
+
+  public getPOSTRoutes(): Record<RoutePath, RouteHandler> {
+    return this._postRoutes;
+  }
+
+  public getPUTRoutes(): Record<RoutePath, RouteHandler> {
+    return this._putRoutes;
+  }
+
+  public getDELETERoutes(): Record<RoutePath, RouteHandler> {
+    return this._deleteRoutes;
+  }
+}

src/api/HealthCheckApi.ts

@@ -0,0 +1,43 @@
+import type {HealthCheck} from '../health/HealthCheck.js';
+import type {RoutePath, RouteHandler} from '../net/http/HttpRouteManger.js';
+import type {IApiRoute} from './IApiRoute';
+import type express from 'express';
+
+export class HealthCheckApi implements IApiRoute {
+  private readonly _getRoutes: Record<string, RouteHandler>;
+  private readonly _postRoutes: Record<string, RouteHandler> = {};
+  private readonly _putRoutes: Record<string, RouteHandler> = {};
+  private readonly _deleteRoutes: Record<string, RouteHandler> = {};
+  private readonly _healthCheck: HealthCheck;
+
+  constructor(healthCheck: HealthCheck) {
+    this._healthCheck = healthCheck;
+    this._getRoutes = this.setupGETRoutes();
+  }
+
+  public getGETRoutes(): Record<RoutePath, RouteHandler> {
+    return this._getRoutes;
+  }
+
+  public getPOSTRoutes(): Record<RoutePath, RouteHandler> {
+    return this._postRoutes;
+  }
+
+  public getPUTRoutes(): Record<RoutePath, RouteHandler> {
+    return this._putRoutes;
+  }
+
+  public getDELETERoutes(): Record<RoutePath, RouteHandler> {
+    return this._deleteRoutes;
+  }
+
+  private setupGETRoutes(): Record<RoutePath, RouteHandler> {
+    return {
+      '/_health': (req: express.Request, res: express.Response) => {
+        const health = this._healthCheck.getHealth();
+
+        res.send(health);
+      }
+    };
+  }
+}

src/api/IApiRoute.ts

@@ -0,0 +1,8 @@
+import type {RouteHandler, RoutePath} from '../net/http/HttpRouteManger';
+
+export interface IApiRoute {
+  getGETRoutes(): Record<RoutePath, RouteHandler>;
+  getPOSTRoutes(): Record<RoutePath, RouteHandler>;
+  getPUTRoutes(): Record<RoutePath, RouteHandler>;
+  getDELETERoutes(): Record<RoutePath, RouteHandler>;
+}

src/api/UserApiRoute.ts

@@ -1,25 +1,25 @@
-import type { RouteHandler } from "../net/http/HttpRouteManger";
+import type {RoutePath, RouteHandler} from '../net/http/HttpRouteManger';
+import type {IApiRoute} from './IApiRoute';
 
-
-export class UserApiRoute {
+export class UserApiRoute implements IApiRoute {
   private readonly _getRoutes: Record<string, RouteHandler> = {};
   private readonly _postRoutes: Record<string, RouteHandler> = {};
   private readonly _putRoutes: Record<string, RouteHandler> = {};
   private readonly _deleteRoutes: Record<string, RouteHandler> = {};
 
-    public getGETRoutes(): Record<string, RouteHandler> {
+  public getGETRoutes(): Record<RoutePath, RouteHandler> {
     return this._getRoutes;
   }
 
-    public getPOSTRoutes(): Record<string, RouteHandler> {
+  public getPOSTRoutes(): Record<RoutePath, RouteHandler> {
     return this._postRoutes;
   }
 
-    public getPUTRoutes(): Record<string, RouteHandler> {
+  public getPUTRoutes(): Record<RoutePath, RouteHandler> {
     return this._putRoutes;
   }
 
-    public getDELETERoutes(): Record<string, RouteHandler> {
+  public getDELETERoutes(): Record<RoutePath, RouteHandler> {
     return this._deleteRoutes;
   }
 }

src/di/DependencyManager.ts

@@ -7,7 +7,7 @@ type Registration = {
 /**
  * Lifecycle types:
  * - 'singleton': A single shared instance cached for the lifetime of the manager
- * - 'sergice': A single shared instance cached for the lifetime of the manager
+ * - 'service': A single shared instance cached for the lifetime of the manager
  * - 'transient': A new instance created on each resolve (transient)
  */
 type Lifecycle = 'transient' | 'singleton';
@@ -62,7 +62,7 @@ export class DependencyManager {
     }
 
     const registration = this._registrations.get(name);
-    const { Class, dependencies, lifecycle } = registration!;
+    const {Class, dependencies, lifecycle} = registration!;
 
     if (lifecycle === 'singleton' && this._singletons.has(name)) {
       console.debug(`↻ Using cached singleton [${name}]`);

src/di/NamedType.ts

@@ -1,4 +1,4 @@
-import { Type } from "./Type";
+import {Type} from './Type';
 
 export class NamedType extends Type {
   private readonly _name: string;

src/di/providers/IDependencyProvider.ts

@@ -1,5 +1,5 @@
-import type { Type } from "../Type";
-import type { NamedType } from "../NamedType";
+import type {Type} from '../Type';
+import type {NamedType} from '../NamedType';
 
 export interface IDependencyProvider {
   canProvide(type: Type | NamedType): boolean;

src/health/HealthCheck.ts

@@ -0,0 +1,13 @@
+import type {ILogger} from '../logger/ILogger';
+import LoggerFactory from '../logger/LoggerFactory';
+
+export class HealthCheck {
+  private readonly _logger: ILogger = LoggerFactory.getLogger('HealthCheck');
+
+  public getHealth() {
+    return {
+      status: 'ok',
+      cpu: process.cpuUsage()
+    };
+  }
+}

src/logger/Logger.ts

@@ -1,7 +1,7 @@
-import type { ILogger } from './ILogger';
-import { LoggingLevel } from './LoggingLevel';
-import type { Threshold } from './Threshold';
-import type { IAppender } from './appenders/IAppender';
+import type {ILogger} from './ILogger';
+import {LoggingLevel} from './LoggingLevel';
+import type {Threshold} from './Threshold';
+import type {IAppender} from './appenders/IAppender';
 import LoggingLevelMapping from './LoggingLevelMapping';
 
 export default class Logger implements ILogger {

src/logger/LoggerFactory.ts

@@ -1,10 +1,10 @@
-import type { IAppender } from "./appenders/IAppender";
+import type {IAppender} from './appenders/IAppender';
 import Logger from './Logger';
-import type { LoggingLevelType } from "./LoggingLevel";
-import LoggingLevelMapping from "./LoggingLevelMapping";
-import { Threshold } from "./Threshold";
-import ConsoleAppender from "./appenders/ConsoleAppender";
-import Disposable from "../lang/disposables/Disposable";
+import type {LoggingLevelType} from './LoggingLevel';
+import LoggingLevelMapping from './LoggingLevelMapping';
+import {Threshold} from './Threshold';
+import ConsoleAppender from './appenders/ConsoleAppender';
+import Disposable from '../lang/disposables/Disposable';
 
 type Category = string;
 

src/logger/LoggingLevelMapping.ts

@@ -1,4 +1,3 @@
-
 import {assertUnreachable} from '@techniker-me/tools';
 import {LoggingLevel, type LoggingLevelType} from './LoggingLevel';
 

src/logger/Threshold.ts

@@ -1,6 +1,6 @@
 import Defaults from '../Defaults';
-import { Subject } from '../lang/observables';
-import { LoggingLevel } from './LoggingLevel';
+import {Subject} from '../lang/observables';
+import {LoggingLevel} from './LoggingLevel';
 
 export class Threshold {
   private _threshold: Subject<LoggingLevel>;

src/logger/appenders/Appender.ts

@@ -1,4 +1,4 @@
-import {LoggingLevel, type LoggingLevelType} from '../LoggingLevel';
+import {type LoggingLevelType} from '../LoggingLevel';
 import type ILogMessage from './LogMessage';
 
 export type AppenderOptions = {
@@ -7,7 +7,7 @@ export type AppenderOptions = {
 
 export default class Appender {
   private readonly _logRecorderUrl: string = 'https://logserver.techniker.me/api/logs';
-  // @ts-ignore
+  // @ts-expect-error browser vs node
   private readonly _domain: string = typeof globalThis !== 'undefined' ? (globalThis.location?.hostname ?? '') : '';
   private readonly _logMessageQueue: ILogMessage[] = [];
   private _pendingPostLogMessagePromise: Promise<Response | undefined> | undefined = undefined;

src/logger/appenders/AppenderFactory.ts

@@ -1,5 +1,5 @@
 import Appender from './Appender';
-import type { AppenderOptions } from './Appender';
+import type {AppenderOptions} from './Appender';
 
 export default class AppnederFactory {
   public static createRemoteAppender(remoteAppenderUrl: string, {domain}: AppenderOptions): Appender {

src/logger/appenders/IAppender.ts

@@ -1,4 +1,4 @@
-import type { LoggingLevelType } from '../LoggingLevel';
+import type {LoggingLevelType} from '../LoggingLevel';
 
 export interface IAppender {
   log(timestamp: string, level: LoggingLevelType, category: string, message: string): void;

src/logger/appenders/TechnikerMeAppender.ts

@@ -1,10 +1,10 @@
-import type {LoggingLevel, LoggingLevelType} from '../LoggingLevel';
+import type {LoggingLevelType} from '../LoggingLevel';
 import type {IAppender} from './IAppender';
 import type ILogMessage from './LogMessage';
 
 export default class TechnikerMeAppender implements IAppender {
   private readonly _logRecorderUrl: string = 'https://logserver.techniker.me/api/logs';
-  // @ts-ignore
+  // @ts-expect-error browser vs node
   private readonly _domain: string = typeof globalThis !== 'undefined' ? (globalThis.location?.hostname ?? '') : '';
   private readonly _logMessageQueue: ILogMessage[] = [];
   private _pendingPostLogMessagePromise: Promise<Response | undefined> | undefined = undefined;