1010:Invalid Transaction:Transaction has a bad signature

[Wangmmx]

I got this error when transfer KSM with the @polkadot/api v11.2.1 lib, and sign with @polkadot/types v11.2.1

    let transfer = api.tx.balances.transferAllowDeath(BOB, 1);
    let signedHex = transfer.sign(pair, {era:0, runtimeVersion: { specVersion:runtime.specVersion, transactionVersion:runtime.transactionVersion}}).toHex()
//broadcast the signedHex

And pair can be any random one, I had never got this error before, could you please help me with this? Thanks a lot

[csquan]

same too,any solutions?

[TarikGul]

On Kusama the CheckMetadataHash signed extension was added which acted as a breaking change. Support for it has been added to the api in 11.1.1 - That being said, I have been able to successfully send transactions in Kusama, but I can double check using .sign

[TarikGul]

Try adding mode: 0 to the signerOptions.

[csquan]

how to adding mode: 0 to the signerOptions?

[csquan]

seems add field metadataHash and mode in payload，but I do not test it .

[TarikGul]

Yea you just need to add mode: 0 to the signerOptions which is just a options object at the end of sign

[malingzhao]

const provider = new WsProvider('wss://kusama-rpc.polkadot.io');
const api = await ApiPromise.create({ provider });
console.log("the address is =========")
console.log(sender.address)
// Estimate the fees as RuntimeDispatchInfo using the signer
const info = await api.tx.balances.transferAllowDeath("F7B8Hd9LrEyeLFdcXnf81NcNH75W4UobQ81viZBVTVFsRhK", 1).signAndSend(sender, {mode:0})

v11.3.1 how does the err resolve

[Wangmmx]

I have no idea why got this error after adding the mode:0 to sign function, at last I solved it without using this sdk, create it offline and sign it in local environment, and also the signerPayload need add {mode:0, metadataHash:''}, and send it online

Or I use the other function can success too, after build the transfer, then

  await transfer.signAndSend(pair, {mode: 0}).then(function (ret) {
      console.log(ret)
   })

[malingzhao]

ok