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Add request eip712 signature button #4

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Add request eip712 signature button #4

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0f8b3ee
add request eip712 signature button
pilagod Aug 13, 2024
bafbdf1
show eip712 signature
pilagod Aug 14, 2024
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105 changes: 99 additions & 6 deletions src/App.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -62,7 +62,7 @@ function DApp() {
}

function Profile() {
const { address, chainId } = useAccount();
const { address, chainId, connector } = useAccount();
const { disconnect } = useDisconnect();
const { data: balance, refetch } = useBalance({
address,
Expand All @@ -74,6 +74,7 @@ function Profile() {
);
const [value, setValue] = useState<string>("0.01");
const [errorMessage, setErrorMessage] = useState<string>("");
const [eip712Signature, setEip712Signature] = useState("");

if (!address) {
return <div>Loading...</div>;
Expand All @@ -85,9 +86,12 @@ function Profile() {
<div>Balance: {formatUnits(balance.value, balance.decimals)} ETH</div>
)}
<button onClick={() => disconnect()}>Disconnect</button>
<div style={{ display: "flex", justifyContent: "space-between" }}>
<label htmlFor="toAddress" style={{ whiteSpace: "nowrap" }}>
To address:
<div>
<label
htmlFor="toAddress"
style={{ marginRight: "4px", whiteSpace: "nowrap" }}
>
To:
</label>
<input
id="toAddress"
Expand All @@ -105,8 +109,11 @@ function Profile() {
}}
/>
</div>
<div style={{ display: "flex", justifyContent: "space-between" }}>
<label htmlFor="value" style={{ whiteSpace: "nowrap" }}>
<div>
<label
htmlFor="value"
style={{ marginRight: "4px", whiteSpace: "nowrap" }}
>
Value:
</label>
<input
Expand Down Expand Up @@ -138,6 +145,92 @@ function Profile() {
>
Transfer
</button>
{connector && (
<div>
<button
onClick={async () => {
const provider = (await connector?.getProvider()) as {
request(args: { method: string; params: any[] }): any;
};
const signature = await provider.request({
method: "eth_signTypedData_v4",
params: [
address,
{
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",
},
],
Mail: [
{
name: "from",
type: "Person",
},
{
name: "to",
type: "Person",
},
{
name: "contents",
type: "string",
},
],
},
primaryType: "Mail",
domain: {
name: "Ether Mail",
version: `${Math.floor(Math.random() * 100)}`,
chainId,
verifyingContract:
"0xCcCCccccCCCCcCCCCCCcCcCccCcCCCcCcccccccC",
},
message: {
from: {
name: "Cow",
wallet: "0xCD2a3d9F938E13CD947Ec05AbC7FE734Df8DD826",
},
to: {
name: "Bob",
wallet: "0xbBbBBBBbbBBBbbbBbbBbbbbBBbBbbbbBbBbbBBbB",
},
contents: "Hello, Bob!",
},
},
],
});
setEip712Signature(signature);
}}
>
Request EIP712 signature
</button>
<div>{eip712Signature}</div>
</div>
)}
{errorMessage && (
<div style={{ color: "red", width: "350px" }}>{errorMessage}</div>
)}
Expand Down