Adding simple pagination to the admin user's view

website/src/pages/api/admin/users.ts

@@ -2,11 +2,21 @@ import { getToken } from "next-auth/jwt";
 import withRole from "src/lib/auth";
 import prisma from "src/lib/prismadb";
 
+// The number of users to fetch in any request.
+const PAGE_SIZE = 20;
+
 /**
  * Returns a list of user results from the database when the requesting user is
  * a logged in admin.
  */
 const handler = withRole("admin", async (req, res) => {
+  // Figure out the pagination index and skip that number of users.
+  //
+  // Note: with Prisma this isn't the most efficient but it's the only possible
+  // option with cuid based User IDs.
+  const { pageIndex } = req.query;
+  const skip = pageIndex * PAGE_SIZE;
+
   // Fetch 20 users.
   const users = await prisma.user.findMany({
     select: {
@@ -15,7 +25,8 @@ const handler = withRole("admin", async (req, res) => {
       name: true,
       email: true,
     },
-    take: 20,
+    skip,
+    take: PAGE_SIZE,
   });
 
   res.status(200).json(users);