One repo. One deploy. The whole backend.

import { auth } from "@/src/lib/auth";
import { prisma } from "@/src/lib/prisma";
import { CreatePostSchema } from "@/src/lib/schemas/post";

export async function GET(request: Request) {
  const session = await auth.api.getSession({ headers: request.headers });
  if (!session) return Response.json({ error: "Unauthorized" }, { status: 401 });

  const url = new URL(request.url);
  const cursor = url.searchParams.get("cursor") ?? undefined;
  const items = await prisma.post.findMany({
    where: { userId: session.user.id },
    take: 21,
    ...(cursor && { cursor: { id: cursor }, skip: 1 }),
    orderBy: { createdAt: "desc" },
  });
  const hasMore = items.length > 20;
  return Response.json({
    data: hasMore ? items.slice(0, -1) : items,
    nextCursor: hasMore ? items[19].id : null,
  });
}

export async function POST(request: Request) {
  const session = await auth.api.getSession({ headers: request.headers });
  if (!session) return Response.json({ error: "Unauthorized" }, { status: 401 });

  const parsed = CreatePostSchema.safeParse(await request.json());
  if (!parsed.success) {
    return Response.json({ error: "Invalid input", issues: parsed.error.issues }, { status: 400 });
  }

  const post = await prisma.post.create({
    data: { ...parsed.data, userId: session.user.id },
  });
  return Response.json({ data: post }, { status: 201 });
}