SDK core method call() does not support EIP-1898

[cbm-egoubely]

Environment

• Browser version: N/A (Node.js 16.x)
• Alchemy SDK version: 2.2.1

Problem description

The SDK Core endpoint call does not support the syntax {"blockHash": "0x<some-hash>"} as second parameter though the docs explicitely mention it:

NOTE: the parameter is an object instead of a string and should be specified as: {"blockHash": "0x"}

cf. https://docs.alchemy.com/reference/sdk-call

How to reproduce:

const { Alchemy, Network } = require('alchemy-sdk');
const settings = {
  apiKey: "demo",
  network: Network.MATIC_MAINNET,
};

const alchemy = new Alchemy(settings);

const result = await alchemy.core.call({
    to: '0x02D158f550dd434526E0BC4a65F7DD50DDB9afEE',
    from: '0x9dA2192C820C5cC37d26A3F97d7BcF1Bc04232A3',
    data: '0x406f7f6f000000000000000000000000000000000000000000000000000000001460883c0000000000000000000000000000000000000000000000000000000003154b3a00000000000000000000000000000000000000000056da9d67d20d77090000000000000000000000000000000000000000000000000000000000000064920c48000000000000000000000000d01587ecd64504851e181b36153ef4d93c2bf93900000000000000000000000000000000000000001d471783ac9f1aea98bda2a6',
  }, { blockHash: '0xf1ade8878a02fa378129cb9444bb409c11e5f89b94444b5785b370a810268ee6' });

The following error is thrown:

Error: invalid blockTag
    at Formatter.blockTag (/Users/egoubely/projects/poc-alchemy/node_modules/@ethersproject/providers/lib/formatter.js:221:15)
    at AlchemyProvider.<anonymous> (/Users/egoubely/projects/poc-alchemy/node_modules/@ethersproject/providers/lib/base-provider.js:2252:66)
    at step (/Users/egoubely/projects/poc-alchemy/node_modules/@ethersproject/providers/lib/base-provider.js:48:23)
    at Object.next (/Users/egoubely/projects/poc-alchemy/node_modules/@ethersproject/providers/lib/base-provider.js:29:53)
    at fulfilled (/Users/egoubely/projects/poc-alchemy/node_modules/@ethersproject/providers/lib/base-provider.js:20:58)

Note: it works if you Formatter.blockTag function from @ethersproject/providers to accept this format. It seems the fix has to be made on their side.

[cbm-egoubely]

There is an open issue on ethers: https://github.com/ethers-io/ethers.js/issues/2808

Do you know if there is a workaround until this get implemented? The RPC call works; I'm blocked only by the SDK validation.

[github-actions[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs

[thebrianchen]

@cbm-egoubely I'm looking into this issue now. Is there a reason you need to specifically pass call the method with the blockHash parameter?

The underlying ethers library also accepts block hashes as the 2nd parameter, and it will detect block hashes and convert them accordingly. The below code snippet works:

const settings = {
  apiKey: "demo",
  network: Network.MATIC_MAINNET,
};

const alchemy = new Alchemy(settings);

const result = await alchemy.core.call({
    to: '0x02D158f550dd434526E0BC4a65F7DD50DDB9afEE',
    from: '0x9dA2192C820C5cC37d26A3F97d7BcF1Bc04232A3',
    data: '0x406f7f6f000000000000000000000000000000000000000000000000000000001460883c0000000000000000000000000000000000000000000000000000000003154b3a00000000000000000000000000000000000000000056da9d67d20d77090000000000000000000000000000000000000000000000000000000000000064920c48000000000000000000000000d01587ecd64504851e181b36153ef4d93c2bf93900000000000000000000000000000000000000001d471783ac9f1aea98bda2a6',
  }, '0xf1ade8878a02fa378129cb9444bb409c11e5f89b94444b5785b370a810268ee6');

[github-actions[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs