diff --git a/app/routes/api.reviews.jsx b/app/routes/api.reviews.jsx
index 63ff921..76e7e51 100644
--- a/app/routes/api.reviews.jsx
+++ b/app/routes/api.reviews.jsx
@@ -1,45 +1,178 @@
-import prisma from "../db.server";
+import { authenticate, unauthenticated } from "../shopify.server";
 
-// GET → fetch reviews
-export const loader = async ({ request }) => {
-  const url = new URL(request.url);
-  const productId = url.searchParams.get("productId");
-
-  if (!productId) {
-    return new Response("Product ID missing", { status: 400 });
-  }
-
-  const reviews = await prisma.review.findMany({
-    where: { productId },
-    orderBy: { createdAt: "desc" },
-  });
-
-  return new Response(JSON.stringify(reviews), {
-    headers: { "Content-Type": "application/json" },
+const jsonResponse = (data, status = 200) => {
+  return new Response(JSON.stringify(data), {
+    status,
+    headers: {
+      "Content-Type": "application/json",
+      "Access-Control-Allow-Origin": "*",
+      "Cache-Control": "no-store",
+    },
   });
 };
 
-// POST → save review
-export const action = async ({ request }) => {
-  const formData = await request.formData();
+async function ensureDefinition(admin) {
+  console.log(">>> [DEBUG] Triggering Metaobject Definition Creation...");
+  const mutation = `#graphql
+    mutation CreateMetaobjectDefinition($definition: MetaobjectDefinitionCreateInput!) {
+      metaobjectDefinitionCreate(definition: $definition) {
+        metaobjectDefinition { type }
+        userErrors { field message }
+      }
+    }
+  `;
 
-  const name = formData.get("name");
-  const review = formData.get("review");
-  const productId = formData.get("productId");
+  const variables = {
+    definition: {
+      name: "Product Review",
+      type: "product_review",
+      access: { admin: "MERCHANT_READ_WRITE", storefront: "PUBLIC_READ" },
+      capabilities: { publishable: { enabled: true } },
+      fieldDefinitions: [
+        { name: "Product ID", key: "product_id", type: "single_line_text_field", required: true },
+        { name: "Customer Name", key: "customer_name", type: "single_line_text_field" },
+        { name: "Review Content", key: "content", type: "multi_line_text_field" },
+        { name: "Rating", key: "rating", type: "single_line_text_field" }
+      ]
+    }
+  };
 
-  if (!productId) {
-    return new Response("Product ID missing", { status: 400 });
+  const response = await admin.graphql(mutation, { variables });
+  const result = await response.json();
+  console.log(">>> [DEBUG] Creation Result:", JSON.stringify(result));
+  return result;
+}
+
+export const loader = async ({ request }) => {
+  try {
+    const { admin, session } = await authenticate.public.appProxy(request);
+    const url = new URL(request.url);
+    const productId = url.searchParams.get("productId");
+
+    if (!productId) return jsonResponse([]);
+
+    const query = `#graphql
+      query getReviews($query: String!) {
+        metaobjects(first: 50, type: "product_review", query: $query) {
+          edges { node { fields { key value } } }
+        }
+      }
+    `;
+
+    const response = await admin.graphql(query, {
+      variables: { query: `product_id:${productId}` },
+    });
+
+    const data = await response.json();
+
+    // Check for "No definition" error
+    const isMissing = data.errors?.some(e => e.message.toLowerCase().includes("metaobject definition")) || !data.data?.metaobjects;
+    if (isMissing) {
+      console.log(">>> [DEBUG] Loader: Definition missing. Attempting to create...");
+      await ensureDefinition(admin);
+      return jsonResponse([]);
+    }
+
+    const reviews = (data.data?.metaobjects?.edges || []).map((edge) => {
+      const fields = {};
+      edge.node.fields.forEach((f) => { fields[f.key] = f.value; });
+      return {
+        name: fields.customer_name || "Anonymous",
+        review: fields.content || "",
+        rating: fields.rating || "5",
+      };
+    });
+
+    return jsonResponse(reviews);
+  } catch (err) {
+    console.error(">>> [ERROR] Loader:", err.message);
+    return jsonResponse([]);
   }
+};
 
-  await prisma.review.create({
-    data: {
-      productId,
-      name,
-      review,
-    },
-  });
+export const action = async ({ request }) => {
+  try {
+    console.log(">>> [DEBUG] Action: Review Submission Started");
+    const { admin, session } = await authenticate.public.appProxy(request);
+    const url = new URL(request.url);
+    const customerId = url.searchParams.get("logged_in_customer_id");
 
-  return new Response(JSON.stringify({ success: true }), {
-    headers: { "Content-Type": "application/json" },
-  });
+    if (!customerId) return jsonResponse({ error: "Please log in to leave a review." });
+
+    const formData = await request.formData();
+    const productId = formData.get("productId");
+    const name = formData.get("name");
+    const review = formData.get("review");
+
+    // 1. Purchase Check
+    const orderQuery = `#graphql
+      query getOrders($query: String!) {
+        orders(first: 10, query: $query) {
+          edges { node { lineItems(first: 20) { edges { node { product { id } } } } } }
+        }
+      }
+    `;
+
+    const orderResponse = await admin.graphql(orderQuery, {
+      variables: { query: `customer_id:${customerId}` }
+    });
+
+    const orderData = await orderResponse.json();
+    const hasPurchased = (orderData.data?.orders?.edges || []).some(o =>
+      o.node.lineItems.edges.some(i => i.node.product?.id?.includes(productId))
+    );
+
+    if (!hasPurchased) {
+      console.log(">>> [DEBUG] Action: No purchase history found for Customer ID:", customerId);
+      return jsonResponse({ error: "Only verified buyers can leave a review. (Note: It may take a few minutes for new orders to sync)" });
+    }
+
+    // 2. Save Review
+    const saveMutation = `#graphql
+      mutation create($m: MetaobjectCreateInput!) { metaobjectCreate(metaobject: $m) { metaobject { id } userErrors { field message } } }
+    `;
+
+    const saveResponse = await admin.graphql(saveMutation, {
+      variables: {
+        m: {
+          type: "product_review",
+          fields: [
+            { key: "product_id", value: String(productId) },
+            { key: "customer_name", value: String(name) },
+            { key: "content", value: String(review) },
+            { key: "rating", value: "5" }
+          ]
+        }
+      }
+    });
+
+    const result = await saveResponse.json();
+    console.log(">>> [DEBUG] Save Result:", JSON.stringify(result));
+
+    // Check for "No definition" error
+    const isMissing = result.errors?.some(e => e.message.toLowerCase().includes("metaobject definition")) ||
+      result.data?.metaobjectCreate === null;
+
+    if (isMissing) {
+      console.log(">>> [DEBUG] Action: Definition missing. Creating structure...");
+      const createResult = await ensureDefinition(admin);
+      const creationError = createResult.data?.metaobjectDefinitionCreate?.userErrors?.[0]?.message;
+
+      if (creationError && !creationError.includes("already exists")) {
+        return jsonResponse({ error: "Storefront permissions need update. Please open the App Admin page once to fix." });
+      }
+      return jsonResponse({ error: "SUCCESS: Database structure created! Please click Submit Review one last time to save your review." });
+    }
+
+    const errors = result.data?.metaobjectCreate?.userErrors;
+    if (errors && errors.length > 0) {
+      return jsonResponse({ error: errors[0].message });
+    }
+
+    console.log(">>> [DEBUG] Action: Review Saved Successfully!");
+    return jsonResponse({ success: true });
+  } catch (err) {
+    console.error(">>> [ERROR] Action Exception:", err.message);
+    return jsonResponse({ error: "Connection issue. Please refresh the page and try again." });
+  }
 };
\ No newline at end of file
diff --git a/app/routes/webhooks.app.scopes_update.jsx b/app/routes/webhooks.app.scopes_update.jsx
index a40946e..d7f21e6 100644
--- a/app/routes/webhooks.app.scopes_update.jsx
+++ b/app/routes/webhooks.app.scopes_update.jsx
@@ -1,5 +1,4 @@
 import { authenticate } from "../shopify.server";
-import db from "../db.server";
 
 export const action = async ({ request }) => {
   const { payload, session, topic, shop } = await authenticate.webhook(request);
@@ -8,14 +7,7 @@ export const action = async ({ request }) => {
   const current = payload.current;
 
   if (session) {
-    await db.session.update({
-      where: {
-        id: session.id,
-      },
-      data: {
-        scope: current.toString(),
-      },
-    });
+    // In memory storage, we don't need to manually update the scope in a DB
   }
 
   return new Response();
diff --git a/app/routes/webhooks.app.uninstalled.jsx b/app/routes/webhooks.app.uninstalled.jsx
index cdbada6..ea06f47 100644
--- a/app/routes/webhooks.app.uninstalled.jsx
+++ b/app/routes/webhooks.app.uninstalled.jsx
@@ -1,5 +1,4 @@
 import { authenticate } from "../shopify.server";
-import db from "../db.server";
 
 export const action = async ({ request }) => {
   const { shop, session, topic } = await authenticate.webhook(request);
@@ -9,7 +8,8 @@ export const action = async ({ request }) => {
   // Webhook requests can trigger multiple times and after an app has already been uninstalled.
   // If this webhook already ran, the session may have been deleted previously.
   if (session) {
-    await db.session.deleteMany({ where: { shop } });
+    // Session cleanup for memory storage is not strictly required here
+    // but you would normally call shopify.sessionStorage.deleteSessions([shop])
   }
 
   return new Response();
diff --git a/app/shopify.server.js b/app/shopify.server.js
index 691d476..d7e0a85 100644
--- a/app/shopify.server.js
+++ b/app/shopify.server.js
@@ -4,8 +4,7 @@ import {
   AppDistribution,
   shopifyApp,
 } from "@shopify/shopify-app-react-router/server";
-import { PrismaSessionStorage } from "@shopify/shopify-app-session-storage-prisma";
-import prisma from "./db.server";
+import { MemorySessionStorage } from "@shopify/shopify-app-session-storage-memory";
 
 const shopify = shopifyApp({
   apiKey: process.env.SHOPIFY_API_KEY,
@@ -14,7 +13,7 @@ const shopify = shopifyApp({
   scopes: process.env.SCOPES?.split(","),
   appUrl: process.env.SHOPIFY_APP_URL || "",
   authPathPrefix: "/auth",
-  sessionStorage: new PrismaSessionStorage(prisma),
+  sessionStorage: new MemorySessionStorage(),
   distribution: AppDistribution.AppStore,
   future: {
     expiringOfflineAccessTokens: true,