Create profile ensure endpoint for Vercel

cgen-6134e36d4b5947c9b370d02f5292b771

api/profile/ensure.ts

@@ -0,0 +1,66 @@
+import type { VercelRequest, VercelResponse } from "@vercel/node";
+import { getAdminClient } from "../_supabase";
+
+export default async function handler(req: VercelRequest, res: VercelResponse) {
+  if (req.method !== "POST") return res.status(405).json({ error: "Method not allowed" });
+
+  const { id, profile } = (req.body || {}) as { id?: string; profile?: any };
+  if (!id) return res.status(400).json({ error: "missing id" });
+
+  try {
+    const admin = getAdminClient();
+
+    const tryUpsert = async (payload: any) => {
+      const resp = await admin
+        .from("user_profiles")
+        .upsert(payload, { onConflict: "id" as any })
+        .select()
+        .single();
+      return resp as any;
+    };
+
+    let username = profile?.username;
+    let attempt = await tryUpsert({ id, ...profile, username });
+
+    const normalizeError = (err: any) => {
+      if (!err) return null;
+      if (typeof err === "string") return { message: err };
+      if (typeof err === "object" && Object.keys(err).length === 0) return null;
+      return err;
+    };
+
+    let error = normalizeError(attempt.error);
+    if (error) {
+      const message: string = (error as any).message || "";
+      const code: string = (error as any).code || "";
+
+      if (
+        code === "23505" ||
+        message.includes("duplicate key") ||
+        message.includes("username")
+      ) {
+        const suffix = Math.random().toString(36).slice(2, 6);
+        const newUsername = `${String(username || "user").slice(0, 20)}_${suffix}`;
+        attempt = await tryUpsert({ id, ...profile, username: newUsername });
+        error = normalizeError(attempt.error);
+      }
+    }
+
+    if (error) {
+      if ((error as any).code === "23503" || (error as any).message?.includes("foreign key")) {
+        return res.status(400).json({
+          error:
+            "User does not exist in authentication system. Please sign out and sign back in, then retry onboarding.",
+        });
+      }
+      return res.status(500).json({ error: (error as any).message || "Unknown error" });
+    }
+
+    return res.json(attempt.data || {});
+  } catch (e: any) {
+    if (/SUPABASE_/.test(String(e?.message || ""))) {
+      return res.status(500).json({ error: `Server misconfigured: ${e.message}` });
+    }
+    return res.status(500).json({ error: e?.message || String(e) });
+  }
+}