Initial commit: Angular frontend and Expressjs backend

worklenz-backend/src/middlewares/schema-validator.ts

@@ -0,0 +1,15 @@
+import {NextFunction, Request, Response} from "express";
+import {Schema, Validator} from "jsonschema";
+import {ServerResponse} from "../models/server-response";
+
+export default function (schema: Schema) {
+  return (req: Request, res: Response, next: NextFunction) => {
+    const validator = new Validator();
+    const result = validator.validate(req.body, schema);
+
+    if (!result.valid)
+      return res.status(400).send(new ServerResponse(false, null, (result.errors[0]?.schema as any).message || null));
+
+    return next();
+  };
+}