error handlers

backend/src/middlewares/errors.js

@@ -0,0 +1,28 @@
+const httpStatus = require("http-status");
+const { isCelebrateError } = require("celebrate");
+
+const errorHandler = (err, req, res, next) => {
+	if (!isCelebrateError(err)) {
+		let { statusCode, message } = err;
+		if (!err.isOperational) {
+			statusCode = httpStatus.INTERNAL_SERVER_ERROR;
+			message = httpStatus[httpStatus.INTERNAL_SERVER_ERROR];
+		}
+
+		res.locals.errorMessage = err.message;
+
+		const response = {
+			statusCode,
+			message,
+			stack: err.stack,
+		};
+
+		res.status(statusCode).send(response);
+	} else {
+		next(err);
+	}
+};
+
+module.exports = {
+	errorHandler,
+};

backend/src/utils/ApiError.js

@@ -0,0 +1,22 @@
+class ApiError extends Error {
+	constructor(
+		statusCode,
+		message,
+		errorEnum,
+		isOperational = true,
+		stack = ""
+	) {
+		super();
+		this.statusCode = statusCode;
+		this.isOperational = isOperational;
+		this.message = message;
+		this.errorEnum = errorEnum;
+		if (stack) {
+			this.stack = stack;
+		} else {
+			Error.captureStackTrace(this, this.constructor);
+		}
+	}
+}
+
+module.exports = ApiError;