Support `eth_signTypedData_v4` in Anvil

[sunwrobert]

Component

Anvil

Describe the feature you would like

Anvil seems to be missing a pretty key feature that Hardhat supports that makes it hard to replace Hardhat with Anvil. This is the method eth_signTypedData_v4. Without this we can't test a lot of flows that require message signing that we were able to do using Hardhat, at least using the provided dev accounts.

How to repro:

1. Run anvil anvil --fork-url="https://eth-mainnet.alchemyapi.io/v2/XXXXXXX" --fork-block-number=15187941 --port=8545 --block-time=5 --chain-id=1
2. Execute this in another process:

curl -X POST http://localhost:8545 -d '{"jsonrpc": "2.0", "method": "eth_signTypedData_v4", "params": ["0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266", "{\"types\":{\"EIP712Domain\":[{\"name\":\"name\",\"type\":\"string\"},{\"name\":\"version\",\"type\":\"string\"},{\"name\":\"chainId\",\"type\":\"uint256\"},{\"name\":\"verifyingContract\",\"type\":\"address\"}],\"OrderComponents\":[{\"name\":\"offerer\",\"type\":\"address\"},{\"name\":\"zone\",\"type\":\"address\"},{\"name\":\"offer\",\"type\":\"OfferItem[]\"},{\"name\":\"consideration\",\"type\":\"ConsiderationItem[]\"},{\"name\":\"orderType\",\"type\":\"uint8\"},{\"name\":\"startTime\",\"type\":\"uint256\"},{\"name\":\"endTime\",\"type\":\"uint256\"},{\"name\":\"zoneHash\",\"type\":\"bytes32\"},{\"name\":\"salt\",\"type\":\"uint256\"},{\"name\":\"conduitKey\",\"type\":\"bytes32\"},{\"name\":\"counter\",\"type\":\"uint256\"}],\"OfferItem\":[{\"name\":\"itemType\",\"type\":\"uint8\"},{\"name\":\"token\",\"type\":\"address\"},{\"name\":\"identifierOrCriteria\",\"type\":\"uint256\"},{\"name\":\"startAmount\",\"type\":\"uint256\"},{\"name\":\"endAmount\",\"type\":\"uint256\"}],\"ConsiderationItem\":[{\"name\":\"itemType\",\"type\":\"uint8\"},{\"name\":\"token\",\"type\":\"address\"},{\"name\":\"identifierOrCriteria\",\"type\":\"uint256\"},{\"name\":\"startAmount\",\"type\":\"uint256\"},{\"name\":\"endAmount\",\"type\":\"uint256\"},{\"name\":\"recipient\",\"type\":\"address\"}]},\"primaryType\":\"OrderComponents\",\"domain\":{\"name\":\"Seaport\",\"version\":\"1.1\",\"chainId\":\"1\",\"verifyingContract\":\"0x00000000006c3852cbEf3e08E8dF289169EdE581\"},\"message\":{\"offerer\":\"0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266\",\"offer\":[{\"itemType\":\"3\",\"token\":\"0xA604060890923Ff400e8c6f5290461A83AEDACec\",\"identifierOrCriteria\":\"110194434039389003190498847789203126033799499726478230611233094448886344768909\",\"startAmount\":\"1\",\"endAmount\":\"1\"}],\"consideration\":[{\"itemType\":\"0\",\"token\":\"0x0000000000000000000000000000000000000000\",\"identifierOrCriteria\":\"0\",\"startAmount\":\"487500000000000000\",\"endAmount\":\"487500000000000000\",\"recipient\":\"0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266\"},{\"itemType\":\"0\",\"token\":\"0x0000000000000000000000000000000000000000\",\"identifierOrCriteria\":\"0\",\"startAmount\":\"12500000000000000\",\"endAmount\":\"12500000000000000\",\"recipient\":\"0x8De9C5A032463C561423387a9648c5C7BCC5BC90\"}],\"startTime\":\"1658645591\",\"endTime\":\"1659250386\",\"orderType\":\"3\",\"zone\":\"0x004C00500000aD104D7DBd00e3ae0A5C00560C00\",\"zoneHash\":\"0x0000000000000000000000000000000000000000000000000000000000000000\",\"salt\":\"16178208897136618\",\"conduitKey\":\"0x0000007b02230091a7ed01230072f7006a004d60a8d4e71d599b8104250f0000\",\"totalOriginalConsiderationItems\":\"2\",\"counter\":\"0\"}}"], "id": "1"}' -H "Content-Type: application/json"

3. Notice that {"jsonrpc":"2.0","id":"1","error":{"code":-32601,"message":"Method not found"}}% is returned.

If I run the same using Hardhat, I get the following response:
{"jsonrpc":"2.0","id":"1","result":"0xedb0fa55ac67e3ca52b6bd6ee3576b193731adc2aff42151f67826932fa9f6191261ebdecc2c650204ff7625752b033293fb67ef5cfca78e16de359200040b761b"}%

Additional context

No response

[tynes]

This seems like a very high leverage feature to add to anvil

[mattsse]

currently implementing this, writing tests now, should land shortly