error files added

Author: dev-rashedin

package-lock.json

@@ -11,5 +11,8 @@
   "description": "A lightweight and developer-friendly toolkit for robust error handling in Express.js applications.\nIncludes ready-to-use custom error classes, an async route error handler wrapper, a global error handler middleware, and a convenient 'not found' route handler.\nDesigned to simplify error management, reduce boilerplate, and improve app reliability — all with TypeScript support and easy integration.",
   "dependencies": {
     "http-status-toolkit": "^1.0.3"
+  },
+  "devDependencies": {
+    "typescript": "^5.8.3"
   }
 }

package.json

@@ -0,0 +1,11 @@
+import { StatusCodes } from "../constants/httpStatus";
+import CustomAPIError from "./custom-api";
+
+
+class BadRequestError extends CustomAPIError {
+  constructor(message: string, details: string | object | null = null) {
+    super(message, StatusCodes.BAD_REQUEST, details);
+  }
+}
+
+export default BadRequestError;

src/error/bad-request.ts

@@ -0,0 +1,19 @@
+import { StatusCodes } from "../constants/httpStatus";
+
+class CustomAPIError extends Error {
+
+  public statusCode: number;
+  public details: string | object | null;
+
+  constructor(message: string, statusCode: number = StatusCodes.UNAUTHORIZED, details: string | object | null  = null) {
+    super(message);
+    this.statusCode = statusCode;
+    this.details = details;
+
+    // Set the prototype explicitly to maintain the correct prototype chain
+    Object.setPrototypeOf(this, CustomAPIError.prototype);
+  }
+}
+
+
+export default CustomAPIError;

src/error/custom-api.ts

@@ -0,0 +1,11 @@
+import CustomAPIError from './custom-api';
+import BadRequestError from './bad-request';
+import NotFoundError from './not-found';
+import UnauthenticatedError from './unauthenticated';
+
+export {
+  CustomAPIError,
+  BadRequestError,
+  NotFoundError,
+  UnauthenticatedError
+}

src/error/index.ts

@@ -0,0 +1,11 @@
+import { StatusCodes } from "../constants/httpStatus";
+import CustomAPIError from "./custom-api";
+
+
+class NotFoundError extends CustomAPIError {
+  constructor(message: string, details: string | object | null = null) {
+    super(message, StatusCodes.NOT_FOUND, details);
+  }
+}
+
+export default NotFoundError;

src/error/not-found.ts

@@ -0,0 +1,11 @@
+import { StatusCodes } from "../constants/httpStatus";
+import CustomAPIError from "./custom-api";
+
+
+class UnauthenticatedError extends CustomAPIError {
+  constructor(message: string, details: string | object | null = null) {
+    super(message, StatusCodes.UNAUTHORIZED, details);
+  }
+}
+
+export default UnauthenticatedError;

src/error/unauthenticated.ts

@@ -0,0 +1,16 @@
+{
+  "compilerOptions": {
+    "target": "ES6",
+    "module": "ESNext",
+    "moduleResolution": "node",
+    "declaration": true,
+    "declarationDir": "dist",
+    "outDir": "./dist",
+    "rootDir": "./src",
+    "strict": true,
+    "esModuleInterop": true,
+    "forceConsistentCasingInFileNames": true,
+    "skipLibCheck": true
+  },
+  "include": ["src"]
+}