Merge pull request #6 from AlexandreBazeaud/master

Adding signTypedDataV4
michielpost · Nov 26, 2021 · 72a0016 · 72a0016
2 parents b5be06b + 265aefb
commit 72a0016
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diff --git a/MetaMask.Blazor/MetaMaskService.cs b/MetaMask.Blazor/MetaMaskService.cs
@@ -162,6 +162,20 @@ public async ValueTask<string> SignTypedData(string label, string value)
                 throw;
             }
         }
+
+        public async ValueTask<string> SignTypedDataV4(string typedData)
+        {
+            var module = await moduleTask.Value;
+            try
+            {
+                return await module.InvokeAsync<string>("signTypedDataV4", typedData);
+            }
+            catch (Exception ex)
+            {
+                HandleExceptions(ex);
+                throw;
+            }
+        }
 
         public async ValueTask<string> SendTransaction(string to, BigInteger weiValue, string? data = null)
         {

diff --git a/MetaMask.Blazor/wwwroot/metaMaskJsInterop.js b/MetaMask.Blazor/wwwroot/metaMaskJsInterop.js
@@ -117,6 +117,27 @@ export async function signTypedData(label, value) {
     }
 }
 
+export async function signTypedDataV4(typedData) {
+    await checkMetaMask();
+
+    try {
+        var result = await ethereum.request({
+            method: 'eth_signTypedData_v4',
+            params:
+                [
+                    ethereum.selectedAddress,
+                    typedData
+                ],
+            from: ethereum.selectedAddress
+        });
+
+        return result;
+    } catch (error) {
+        // User denied account access...
+        throw "UserDenied"
+    }
+}
+
 export async function sendTransaction(to, value, data) {
     await checkMetaMask();