add suggestion backend

pages/api/plus/suggestions.ts

@@ -0,0 +1,42 @@
+import { getMySession } from "lib/api";
+import { UserError } from "lib/errors";
+import { NextApiRequest, NextApiResponse } from "next";
+import plusService from "services/plus";
+import { ZodError } from "zod";
+
+const suggestionsHandler = async (
+  req: NextApiRequest,
+  res: NextApiResponse
+) => {
+  const user = await getMySession(req);
+
+  switch (req.method) {
+    case "POST":
+      await postHandler(req, res);
+      break;
+    default:
+      res.status(405).end();
+  }
+
+  async function postHandler(req: NextApiRequest, res: NextApiResponse) {
+    if (!user) return res.status(401).end();
+
+    try {
+      await plusService.addSuggestion({ data: req.body, userId: user.id });
+    } catch (e) {
+      if (e instanceof ZodError) {
+        res.status(400).json({ message: e.message });
+      } else if (e instanceof UserError) {
+        res.status(400).json({ message: e.message });
+      } else {
+        res.status(500).end();
+      }
+
+      return;
+    }
+
+    res.status(200).end();
+  }
+};
+
+export default suggestionsHandler;