added attestation

package.json

@@ -44,6 +44,7 @@
     "node": ">=18.17.0"
   },
   "dependencies": {
+    "@coinbase/onchainkit": "^0.23.4",
     "@emotion/react": "^11.11.4",
     "@emotion/styled": "^11.11.5",
     "@ethereum-attestation-service/eas-sdk": "^2.3.0",

packages/nextjs/app/api/orchestrator/[frameId]/route.ts

@@ -3,6 +3,9 @@ import { FrameRequest, getFrameHtmlResponse } from "@coinbase/onchainkit";
 import Analytics from "~~/model/analytics";
 import connectDB from "~~/services/connectDB";
 import { getFrameAtServer } from "~~/services/frames";
+import { EAS, SchemaEncoder, SchemaRegistry } from "@ethereum-attestation-service/eas-sdk";
+import { ethers } from "ethers";
+
 
 const storeAnalytics = async (body: FrameRequest, state: any) => {
   const analyticsEntry = new Analytics({
@@ -16,7 +19,38 @@ const storeAnalytics = async (body: FrameRequest, state: any) => {
   await analyticsEntry.save();
   console.log(analyticsEntry);
 };
+async function createAttestation(txnId : string){
+const eas = new EAS("0x4200000000000000000000000000000000000021");
+const offchain = await eas.getOffchain();
+const provider = new ethers.JsonRpcProvider("https://base-sepolia.infura.io/v3/847856edbfc14f50a4782dce0fa77ce5")
+// Signer must be an ethers-like signer.
+const schemaUID = "0x3ca31d9c24a48e437eba25cb423d9a873a751511c70dc0b2a8fb4c9a8d45b506"
+const signer = new ethers.Wallet("c04f2876f3691d44fdba3592bf800c05516d419f10ac269a7a565c21dfda57fa", provider);
+const schemaEncoder = new SchemaEncoder("address seller,address buyer,uint256 amount,uint256 quantity,bytes32 txHash,string productId");
+const encodedData = schemaEncoder.encodeData([
+	{ name: "seller", value: "0x0000000000000000000000000000000000000000", type: "address" },
+	{ name: "buyer", value: "0x0000000000000000000000000000000000000000", type: "address" },
+	{ name: "amount", value: "0", type: "uint256" },
+	{ name: "quantity", value: "0", type: "uint256" },
+	{ name: "txHash", value: {txnId}, type: "bytes32" },
+	{ name: "productId", value: "", type: "string" },
+]);
+
+const tx = await eas.attest({
+  schema: schemaUID,
+  data: {
+    recipient: "0x0000000000000000000000000000000000000000",
+    expirationTime: BigInt(0),
+    revocable: true, // Be aware that if your schema is not revocable, this MUST be false
+    data: encodedData,
+  },
+});
 
+const newAttestationUID = await tx.wait();
+
+  console.log("New attestation UID:", newAttestationUID);
+  return newAttestationUID;
+}
 async function getResponse(req: NextRequest): Promise<NextResponse> {
   await connectDB();
   const url = req.nextUrl.pathname;