diff --git a/.gitignore b/.gitignore
index eedd89b..282fabf 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,4 @@
 api
+node_modules/
+.env.*
+./database/data.db
diff --git a/bun.lock b/bun.lock
new file mode 100644
index 0000000..af2db4f
--- /dev/null
+++ b/bun.lock
@@ -0,0 +1,19 @@
+{
+  "lockfileVersion": 1,
+  "workspaces": {
+    "": {
+      "devDependencies": {
+        "@types/bun": "^1.2.11",
+      },
+    },
+  },
+  "packages": {
+    "@types/bun": ["@types/bun@1.2.11", "", { "dependencies": { "bun-types": "1.2.11" } }, "sha512-ZLbbI91EmmGwlWTRWuV6J19IUiUC5YQ3TCEuSHI3usIP75kuoA8/0PVF+LTrbEnVc8JIhpElWOxv1ocI1fJBbw=="],
+
+    "@types/node": ["@types/node@22.15.3", "", { "dependencies": { "undici-types": "~6.21.0" } }, "sha512-lX7HFZeHf4QG/J7tBZqrCAXwz9J5RD56Y6MpP0eJkka8p+K0RY/yBTW7CYFJ4VGCclxqOLKmiGP5juQc6MKgcw=="],
+
+    "bun-types": ["bun-types@1.2.11", "", { "dependencies": { "@types/node": "*" } }, "sha512-dbkp5Lo8HDrXkLrONm6bk+yiiYQSntvFUzQp0v3pzTAsXk6FtgVMjdQ+lzFNVAmQFUkPQZ3WMZqH5tTo+Dp/IA=="],
+
+    "undici-types": ["undici-types@6.21.0", "", {}, "sha512-iwDZqg0QAGrg9Rav5H4n0M64c3mkR59cJ6wQp+7C4nI0gsmExaedaYLNO44eT4AtBBwjbTiGPMlt2Md0T9H9JQ=="],
+  }
+}
diff --git a/database/data.db b/database/data.db
new file mode 100644
index 0000000..db8db7d
Binary files /dev/null and b/database/data.db differ
diff --git a/database/seed.sql b/database/seed.sql
new file mode 100644
index 0000000..92e8498
--- /dev/null
+++ b/database/seed.sql
@@ -0,0 +1,5 @@
+CREATE TABLE IF NOT EXISTS products (
+    webflowProductId INTEGER NOT NULL,
+    printfulProductId INTEGER NOT NULL,
+    UNIQUE(webflowProductId, printfulProductId)
+)
diff --git a/main.ts b/main.ts
index b179ee9..c0486f7 100644
--- a/main.ts
+++ b/main.ts
@@ -1 +1,33 @@
-console.log("Hello world");
+import { Printful } from "./printful.ts"
+import { ProductRecords } from "./storage.ts"
+
+const productRecords = new ProductRecords();
+
+const server = Bun.serve({
+    routes: {
+        "/webhook/printful": {
+            async POST(req) {
+                const payload: Printful.Webhook.EventPayload = await req.json()
+
+                switch (payload.type) {
+                    case Printful.Webhook.Event.ProductUpdated:
+                        const productRecord = productRecords.findFromPrintful(payload.data.sync_product.id)
+                        if (productRecord) {
+
+                        }
+                        else {
+
+                        }
+                        break;
+                    case Printful.Webhook.Event.ProductDeleted:
+                        break;
+                }
+
+                return Response.json("Hello world")
+            }
+        }
+    },
+    development: true
+})
+
+console.log(`Listening on ${server.url}`);
diff --git a/package.json b/package.json
new file mode 100644
index 0000000..8f5b278
--- /dev/null
+++ b/package.json
@@ -0,0 +1,9 @@
+{
+  "dependencies": {},
+  "devDependencies": {
+    "@types/bun": "^1.2.11"
+  },
+  "scripts": {
+    "db:seed": "sqlite3 ./database/data.db < ./database/seed.sql"
+  }
+}
diff --git a/printful.ts b/printful.ts
new file mode 100644
index 0000000..2127e60
--- /dev/null
+++ b/printful.ts
@@ -0,0 +1,122 @@
+export namespace Printful {
+    const API_ROUTE = "https://api.printful.com/store";
+
+    export namespace Webhook {
+        // meta
+        interface MetaData {
+            created: number;
+            retries: number;
+            store: number;
+        }
+
+        export enum Event {
+            ProductUpdated = "product_updated",
+            ProductDeleted = "product_deleted"
+        }
+
+        // product updated
+        export interface ProductUpdated extends MetaData {
+            type: Event.ProductUpdated,
+            data: {
+                sync_product: {
+                    id: number;
+                    external_id: string;
+                    name: string;
+                    variants: number;
+                    synced: number;
+                    thumbnail_url: string;
+                    is_ignored: boolean;
+                };
+            }
+        }
+
+        // product deleted
+        export interface ProductDeleted extends MetaData {
+            type: Event.ProductDeleted,
+            data: {
+                sync_product: {
+                    id: number;
+                    external_id: string;
+                    name: string;
+                };
+            }
+        }
+
+        export type EventPayload = ProductUpdated | ProductDeleted
+    }
+
+    export namespace Products {
+        interface MetaData<T = any> {
+            code: number;
+            result: T;
+        }
+
+        interface Option {
+            id: string;
+            value: string;
+        }
+
+        interface File {
+            type: string;
+            id: number;
+            url: string;
+            options: Option[];
+            hash: string;
+            filename: string;
+            mime_type: string;
+            size: number;
+            width: number;
+            height: number;
+            dpi: number;
+            status: string;
+            created: number;
+            thumbnail_url: string;
+            preview_url: string;
+            visible: boolean;
+            is_temporary: boolean;
+            stitch_count_tier: string;
+        }
+
+        interface SyncProductData {
+            id: number;
+            external_id: string;
+            sync_product_id: number;
+            name: string;
+            synced: boolean;
+            variant_id: number;
+            retail_price: string;
+            currency: string;
+            is_ignored: boolean;
+            sku: string;
+            product: {
+                variant_id: number;
+                product_id: number;
+                image: string;
+                name: string;
+            };
+            files: File[];
+            options: Option[];
+            main_category_id: number;
+            warehouse_product_id: number;
+            warehouse_product_variant_id: number;
+            size: string;
+            color: string;
+            availability_status: string;
+        }
+        export type SyncProduct = MetaData<SyncProductData>;
+    }
+
+    export async function getSyncProduct(syncProductId: String): Promise<Products.SyncProduct> {
+        const payload: Products.SyncProduct = await (
+            await fetch(`${API_ROUTE}/products/${syncProductId}`, {
+                method: "GET",
+                headers: {
+                    "Authorization": `Bearer ${Bun.env.PRINTFUL_AUTH}`,
+                    "X-PF-Store-Id": `${Bun.env.PRINTFUL_STORE_ID}`
+                }
+            })
+        ).json();
+
+        return payload;
+    }
+}
diff --git a/storage.ts b/storage.ts
new file mode 100644
index 0000000..9452b16
--- /dev/null
+++ b/storage.ts
@@ -0,0 +1,42 @@
+import { Database } from "bun:sqlite";
+
+interface ProductsRecord {
+    webflowProductId: number;
+    printfulProductId: number;
+}
+
+export class ProductRecords {
+    private db: Database;
+
+    constructor() {
+        this.db = new Database("./database/data.db");
+    }
+
+    findFromWebflow(webflowProductId: number): ProductsRecord | undefined {
+        const row = this.db.query(`
+          SELECT * FROM product_records WHERE webflowProductId = ?
+        `).get(webflowProductId);
+
+        return row as ProductsRecord | undefined;
+    }
+
+    findFromPrintful(printfulProductId: number): ProductsRecord | undefined {
+        const row = this.db.query(`
+          SELECT * FROM product_records WHERE printfulProductId = ?
+        `).get(printfulProductId);
+
+        return row as ProductsRecord | undefined;
+    }
+
+    add(record: ProductsRecord): void {
+        this.db.run(`
+          INSERT OR IGNORE INTO product_records (webflowProductId, printfulProductId)
+          VALUES (?, ?)
+        `, [record.webflowProductId, record.printfulProductId]);
+    }
+
+    all(): ProductsRecord[] {
+        return this.db.query(`SELECT * FROM product_records`).all() as ProductsRecord[];
+    }
+}
+