Initial commit

backend-node/middleware/validation.js

@@ -0,0 +1,23 @@
+const { ValidationError } = require('../shared/errors');
+
+const validate = (schema) => {
+  return (req, res, next) => {
+    const { error, value } = schema.validate(req.body, {
+      abortEarly: false,
+      stripUnknown: true,
+    });
+
+    if (error) {
+      const errors = error.details.map((detail) => ({
+        field: detail.path.join('.'),
+        message: detail.message,
+      }));
+      return next(new ValidationError('Validation failed', errors));
+    }
+
+    req.body = value;
+    next();
+  };
+};
+
+module.exports = { validate };