fetch attestationHash from Transaction Receipt

package.json

@@ -14,6 +14,7 @@
   },
   "dependencies": {
     "@neynar/nodejs-sdk": "^1.40.0",
+    "ethers": "^6.13.2",
     "frog": "latest",
     "hono": "latest"
   }

src/helpers/constants.ts

@@ -0,0 +1,54 @@
+export const NETWORK_IDS = {
+    MAIN_NET: 1,
+    ROPSTEN: 3,
+    SEPOLIA: 11155111,
+    XDAI: 100,
+    POLYGON: 137,
+    OPTIMISTIC: 10,
+    OPTIMISM_SEPOLIA: 11155420,
+    BSC: 56,
+    CELO: 42220,
+    CELO_ALFAJORES: 44787,
+    ETC: 61,
+    MORDOR_ETC_TESTNET: 63,
+
+    ARBITRUM_MAINNET: 42161,
+    ARBITRUM_SEPOLIA: 421614,
+
+    BASE_MAINNET: 8453,
+    BASE_SEPOLIA: 84532,
+
+    ZKEVM_MAINNET: 1101,
+    ZKEVM_CARDONA: 2442,
+
+    STELLAR_MAINNET: 1500,
+
+    // https://docs.particle.network/developers/other-services/node-service/solana-api
+    SOLANA_MAINNET: 101,
+    SOLANA_TESTNET: 102,
+    SOLANA_DEVNET: 103,
+};
+
+export const NETWORK_NAMES = {
+    BSC: 'bsc',
+    XDAI: 'xdaichain',
+    MAINNET: 'mainnet',
+    ROPSTEN: 'ropsten',
+    SEPOLIA: 'sepolia',
+    POLYGON: 'polygon-mainnet',
+    OPTIMISTIC: 'optimistic-mainnet',
+    OPTIMISM_SEPOLIA: 'optimism-sepolia-testnet',
+    CELO: 'Celo',
+    CELO_ALFAJORES: 'Celo Alfajores',
+    ETC: 'Ethereum Classic',
+    MORDOR_ETC_TESTNET: 'Ethereum Classic Testnet',
+    ARBITRUM_MAINNET: 'Arbitrum Mainnet',
+    ARBITRUM_SEPOLIA: 'Arbitrum Sepolia',
+    BASE_MAINNET: 'Base Mainnet',
+    BASE_SEPOLIA: 'Base Sepolia',
+
+    ZKEVM_CARDONA: 'ZKEVM Cardona',
+    ZKEVM_MAINNET: 'ZKEVM Mainnet',
+
+    STELLAR_MAINNET: 'Stellar Mainnet',
+};

src/helpers/ethers.ts

@@ -0,0 +1,92 @@
+import {NETWORK_IDS, NETWORK_NAMES} from "./constants.js";
+import {ethers} from "ethers";
+
+const INFURA_ID = process.env.INFURA_ID as string;
+
+export function getProvider(networkId: number) {
+    let url;
+    let options;
+    switch (networkId) {
+        case NETWORK_IDS.MORDOR_ETC_TESTNET:
+            url =
+                (process.env.MORDOR_ETC_TESTNET as string) ||
+                `https://rpc.mordor.etccooperative.org`;
+            break;
+        case NETWORK_IDS.ETC:
+            url = process.env.ETC_NODE_HTTP_URL as string;
+            break;
+        case NETWORK_IDS.XDAI:
+            url = process.env.XDAI_NODE_HTTP_URL as string;
+            break;
+
+        case NETWORK_IDS.BSC:
+            // 'https://bsc-dataseed.binance.org/'
+            url = process.env.BSC_NODE_HTTP_URL as string;
+            options = { name: NETWORK_NAMES.BSC, chainId: NETWORK_IDS.BSC };
+            break;
+
+        case NETWORK_IDS.CELO:
+            url =
+                (process.env.CELO_NODE_HTTP_URL as string) ||
+                `https://celo-mainnet.infura.io/v3/${INFURA_ID}`;
+            break;
+
+        case NETWORK_IDS.CELO_ALFAJORES:
+            url =
+                (process.env.CELO_ALFAJORES_NODE_HTTP_URL as string) ||
+                `https://celo-alfajores.infura.io/v3/${INFURA_ID}`;
+            break;
+
+        case NETWORK_IDS.OPTIMISM_SEPOLIA:
+            url = `https://optimism-sepolia.infura.io/v3/${INFURA_ID}`;
+            break;
+
+        case NETWORK_IDS.ARBITRUM_MAINNET:
+            url =
+                (process.env.ARBITRUM_MAINNET_NODE_HTTP_URL as string) ||
+                `https://arbitrum-mainnet.infura.io/v3/${INFURA_ID}`;
+            break;
+
+        case NETWORK_IDS.ARBITRUM_SEPOLIA:
+            url =
+                (process.env.ARBITRUM_SEPOLIA_NODE_HTTP_URL as string) ||
+                `https://arbitrum-sepolia.infura.io/v3/${INFURA_ID}`;
+            break;
+
+        case NETWORK_IDS.BASE_MAINNET:
+            url =
+                (process.env.BASE_MAINNET_NODE_HTTP_URL as string) ||
+                `https://base-mainnet.infura.io/v3/${INFURA_ID}`;
+            break;
+
+        case NETWORK_IDS.BASE_SEPOLIA:
+            url =
+                (process.env.BASE_SEPOLIA_NODE_HTTP_URL as string) ||
+                `https://base-sepolia.infura.io/v3/${INFURA_ID}`;
+            break;
+
+        // Infura doesn support Polygon ZKEVM
+        case NETWORK_IDS.ZKEVM_MAINNET:
+            url = process.env.ZKEVM_MAINNET_NODE_HTTP_URL as string;
+            break;
+
+        case NETWORK_IDS.ZKEVM_CARDONA:
+            url = process.env.ZKEVM_CARDONA_NODE_HTTP_URL as string;
+            break;
+
+        case NETWORK_IDS.STELLAR_MAINNET:
+            url = process.env.STELLAR_HORIZON_API_URL as string;
+            break;
+
+        default: {
+            const network = ethers.Network.from(networkId);
+            url = `https://${network.name}.infura.io/v3/${INFURA_ID}`;
+            break;
+        }
+    }
+
+    return new ethers.JsonRpcProvider(
+        url,
+        options,
+    );
+}

src/routes/replyAttestation.ts

@@ -1,4 +1,6 @@
 import neynarClient from "../helpers/neynarClient.js";
+import {getProvider} from "../helpers/ethers.js";
+import {NETWORK_IDS} from "../helpers/constants.js";
 
 const baseAttestationScan = 'https://base.easscan.org/attestation/view/';
 
@@ -8,7 +10,10 @@ const replyAttestation = async (req: Request) => {
     }
     const body = await req.text();
     const data = JSON.parse(body);
-    const { attestationHash, praiseHash } = data;
+    const { txHash, praiseHash } = data;
+    const provider = getProvider(NETWORK_IDS.BASE_MAINNET);
+    const receipt = await provider.getTransactionReceipt(txHash);
+    const attestationHash = receipt?.logs[0]?.data
     if (!attestationHash || !praiseHash) {
         throw new Error("attestationHash and praiseHash are required");
     }