1 files changed, 34 insertions, 0 deletions
diff --git a/api/src/middlewares/ErrorHandler.ts b/api/src/middlewares/ErrorHandler.ts
new file mode 100644
index 00000000..2e6b1d8b
--- /dev/null
+++ b/api/src/middlewares/ErrorHandler.ts
@@ -0,0 +1,34 @@
+import { NextFunction, Request, Response } from "express";
+import { HTTPError } from "lambert-server";
+import { FieldError } from "../util/instanceOf";
+
+export function ErrorHandler(error: Error, req: Request, res: Response, next: NextFunction) {
+	try {
+		let code = 400;
+		let httpcode = code;
+		let message = error?.toString();
+		let errors = undefined;
+
+		if (error instanceof HTTPError && error.code) code = httpcode = error.code;
+		else if (error instanceof FieldError) {
+			code = Number(error.code);
+			message = error.message;
+			errors = error.errors;
+		} else {
+			console.error(error);
+			if (req.server?.options?.production) {
+				message = "Internal Server Error";
+			}
+			code = httpcode = 500;
+		}
+
+		if (httpcode > 511) httpcode = 400;
+
+		res.status(httpcode).json({ code: code, message, errors });
+
+		return;
+	} catch (error) {
+		console.error(error);
+		return res.status(500).json({ code: 500, message: "Internal Server Error" });
+	}
+}