EIP712 signing script

scripts/sign-script.js

@@ -0,0 +1,49 @@
+const hre = require("hardhat");
+const eip712 = require("ethers-eip712");
+
+
+async function main() {
+    const typedData = {
+        types: {
+            EIP712Domain: [
+                {name: "name", type: "string"},
+                {name: "version", type: "string"},
+                {name: "chainId", type: "uint256"},
+                {name: "verifyingContract", type: "address"},
+            ],
+            Person: [
+                {name: "name", type: "string"},
+                {name: "wallet", type: "address"},
+            ]
+        },
+        // Unexpected identifier
+        //primaryType: 'Person' as const,
+        primaryType: 'Person',
+        domain: {
+            name: 'Ether Mail',
+            version: '1',
+            chainId: 1,
+            verifyingContract: '0xCcCCccccCCCCcCCCCCCcCcCccCcCCCcCcccccccC'
+        },
+        message: {
+            'name': 'Bob',
+            'wallet': '0xbBbBBBBbbBBBbbbBbbBbbbbBBbBbbbbBbBbbBBbB'
+        }
+    }
+
+    const digest = eip712.TypedDataUtils.encodeDigest(typedData)
+    const digestHex = ethers.utils.hexlify(digest)
+
+    const wallet = ethers.Wallet.createRandom()
+    console.log("Wallet:", wallet);
+
+    const signature = await wallet.signMessage(digest)
+    console.log("Signature:", signature);
+}
+
+main()
+  .then(() => process.exit(0))
+  .catch(error => {
+    console.error(error);
+    process.exit(1);
+  });