All: Use Lerna to manage monorepo

packages/lib/services/rest/utils/errors.ts

@@ -0,0 +1,33 @@
+class ApiError extends Error {
+	private httpCode_:number;
+
+	constructor(message:string, httpCode:number = 400) {
+		super(message);
+		this.httpCode_ = httpCode;
+	}
+
+	get httpCode() {
+		return this.httpCode_;
+	}
+}
+
+export class ErrorMethodNotAllowed extends ApiError {
+	constructor(message = 'Method Not Allowed') {
+		super(message, 405);
+	}
+}
+export class ErrorNotFound extends ApiError {
+	constructor(message = 'Not Found') {
+		super(message, 404);
+	}
+}
+export class ErrorForbidden extends ApiError {
+	constructor(message = 'Forbidden') {
+		super(message, 403);
+	}
+}
+export class ErrorBadRequest extends ApiError {
+	constructor(message = 'Bad Request') {
+		super(message, 400);
+	}
+}