use @kadena/client Pact builder and sign with Ecko wallet

[veznidav]

I'm following the docs to create a transaction (https://github.com/kadena-community/kadena.js/tree/main/packages/libs/client#building-a-simple-transaction-from-the-contract). I can see such a transaction can be signed using Chainweaver or WalletConnect. Can I also use the output (an unsigned transaction) of Pact.builder and sign it manually with Ecko wallet (or Koala wallet)? It doesn't seem to work for me (the wallet probably needs the command in a different format).

type Account = `${'k' | 'w'}:${string}` | string;
function keyFromAccount(account: Account): string {
  return account.split(':')[1];
}

export const testTransaction = async () => {
  const acc =
    'k:91a7231c92f0d328a701ea9256c743a60e126e77b6a01bef8f348a10532f18b3';
  const rec =
    'k:f2fff6855166ce59ebd8dec774cc68e0f4a2fdaa8e8cf70ac3ae6fdadee35f8b';

  const unsignedTransaction = Pact.builder
    .execution(
      Pact.modules.coin.transfer(acc, rec, {
        decimal: '1',
      })
    )
    .addSigner(keyFromAccount(acc), (withCapability) => [
      withCapability('coin.GAS'),
      withCapability('coin.TRANSFER', acc, rec, {
        decimal: '1',
      }),
    ])
    .setMeta({ chainId: '1', senderAccount: keyFromAccount(acc) })
    .setNetworkId('mainnet01')
    .createTransaction();

  const resp = await (window as any).kadena.request({
    method: 'kda_requestSign',
    data: {
      networkId: 'mainnet01',
      signingCmd: unsignedTransaction.cmd,
    },
  });
};

unsignedTransaction.cmd is:

{
   "payload":{
      "exec":{
         "code":"(coin.transfer \"k:91a7231c92f0d328a701ea9256c743a60e126e77b6a01bef8f348a10532f18b3\" \"k:f2fff6855166ce59ebd8dec774cc68e0f4a2fdaa8e8cf70ac3ae6fdadee35f8b\" 1.0)",
         "data":{
            
         }
      }
   },
   "nonce":"kjs:nonce:1702750559345",
   "signers":[
      {
         "pubKey":"91a7231c92f0d328a701ea9256c743a60e126e77b6a01bef8f348a10532f18b3",
         "scheme":"ED25519",
         "clist":[
            {
               "name":"coin.GAS",
               "args":[
                  
               ]
            },
            {
               "name":"coin.TRANSFER",
               "args":[
                  "k:91a7231c92f0d328a701ea9256c743a60e126e77b6a01bef8f348a10532f18b3",
                  "k:f2fff6855166ce59ebd8dec774cc68e0f4a2fdaa8e8cf70ac3ae6fdadee35f8b",
                  {
                     "decimal":"1"
                  }
               ]
            }
         ]
      }
   ],
   "meta":{
      "gasLimit":2500,
      "gasPrice":1e-8,
      "sender":"91a7231c92f0d328a701ea9256c743a60e126e77b6a01bef8f348a10532f18b3",
      "ttl":28800,
      "creationTime":1702750559,
      "chainId":"1"
   },
   "networkId":"mainnet01"
}

[veznidav]

Adding a screen recording of what happens in ecko wallet when kadena.request is called.

ecko.mov

[ash-vd]

Ecko expects a signing request, not an ICommand. You have to convert your command to a signing request before sending it to Ecko. An easier way to get this working is using the signWithEckoWallet function:

const tx = Pact.builder
.execution(
  Pact.modules.coin.transfer(acc, rec, {
    decimal: '1',
  })
)
.addSigner(keyFromAccount(acc), (withCapability) => [
  withCapability('coin.GAS'),
  withCapability('coin.TRANSFER', acc, rec, {
    decimal: '1',
  }),
])
.setMeta({ chainId: '1', senderAccount: keyFromAccount(acc) })
.setNetworkId('mainnet01')
.createTransaction();
const signWithEckoWallet = createEckoWalletSign();

await signWithEckoWallet(tx);

If you prefer to do it in the way you've shown, take a look at the pactCommandToSigningRequest function.