add breakpoints rest

app/routes/rest/breakpoints.$projectId.ts

@@ -0,0 +1,23 @@
+import { type LoaderFunction } from "remix";
+import type { Breakpoint } from "@webstudio-is/sdk";
+import * as db from "~/shared/db";
+
+export type ErrorData = {
+  errors: string;
+};
+
+export const loader: LoaderFunction = async ({
+  params,
+}): Promise<Array<Breakpoint> | ErrorData> => {
+  try {
+    const data = await db.breakpoints.load(params.projectId);
+    return data?.values || [];
+  } catch (error) {
+    if (error instanceof Error) {
+      return {
+        errors: error.message,
+      };
+    }
+  }
+  return { errors: "Unexpected error" };
+};

app/shared/db/breakpoints.server.ts

@@ -8,7 +8,11 @@ import ObjectId from "bson-objectid";
 import { applyPatches, type Patch } from "immer";
 import { prisma } from "./prisma.server";
 
-export const load = async (projectId: Project["id"]) => {
+export const load = async (projectId?: Project["id"]) => {
+  if (typeof projectId !== "string") {
+    throw new Error("Project ID required");
+  }
+
   return await prisma.breakpoints.findUnique({
     where: { projectId },
   });