Restructure codebase to use src directory

src/config/nextConnect/middleware/validateRequest.ts

@@ -0,0 +1,49 @@
+import ServerError from '@/config/util/ServerError';
+import { NextApiRequest, NextApiResponse } from 'next';
+import { NextHandler } from 'next-connect';
+import { z } from 'zod';
+
+/**
+ * Middleware to validate the request body and/or query against a zod schema.
+ *
+ * @example
+ *   const handler = nextConnect(NextConnectConfig).post(
+ *     validateRequest({ bodySchema: BeerPostValidationSchema }),
+ *     getCurrentUser,
+ *     createBeerPost,
+ *   );
+ *
+ * @param args
+ * @param args.bodySchema The body schema to validate against.
+ * @param args.querySchema The query schema to validate against.
+ * @throws ServerError with status code 400 if the request body or query is invalid.
+ */
+const validateRequest =
+  ({
+    bodySchema,
+    querySchema,
+  }: {
+    bodySchema?: z.ZodSchema<any>;
+    querySchema?: z.ZodSchema<any>;
+  }) =>
+  async (req: NextApiRequest, res: NextApiResponse, next: NextHandler) => {
+    if (bodySchema) {
+      const parsed = bodySchema.safeParse(JSON.parse(JSON.stringify(req.body)));
+      if (!parsed.success) {
+        throw new ServerError('Invalid request body.', 400);
+      }
+      req.body = parsed.data;
+    }
+
+    if (querySchema) {
+      const parsed = querySchema.safeParse(req.query);
+      if (!parsed.success) {
+        throw new ServerError('Invalid request query.', 400);
+      }
+      req.query = parsed.data;
+    }
+
+    return next();
+  };
+
+export default validateRequest;