[ NPM ][ Cosmos ] TW.Cosmos.Proto.SigningOutput json serialized is giving empty string output

[punithbm]

Trying to get JSON serialized out as mentioned below is giving an empty string response. Even though output.json contains the JSON object but serialized is empty. Can you please check and let me know how to get the output for the JSON serialized?

const signCosmos = () => {
    const amounts = TW.Cosmos.Proto.Amount.create({
      amount: '118264',
      denom: 'uatom',
    });
    const sendCoinsMessage = TW.Cosmos.Proto.Message.Send.create({
      toAddress: 'cosmos1txd8yv85gd9v2mdjm6l3rpxtk02wk65qmv75ty',
      fromAddress: 'cosmos1txd8yv85gd9v2mdjm6l3rpxtk02wk65qmv75ty',
      amounts: [amounts],
    });
    const message = TW.Cosmos.Proto.Message.create({
        sendCoinsMessage: sendCoinsMessage,
    });
    const fee = TW.Cosmos.Proto.Fee.create({
      gas: new Long(75000),
      amounts: [
        {
          amount: '2000',
          denom: 'uatom',
        },
      ],
    });
    const input = TW.Cosmos.Proto.SigningInput.create({
        chainId: "cosmoshub-4",
        messages: [message],
        fee,
        accountNumber: new Long(Number(1446536)),
        sequence: new Long(Number(0)),
        memo: "",
        mode: 1,
        privateKey: this.PrivateKey.createWithData(
            this.HexCoding.decode("private key"),
        ).data(),
    });
    const encoded = TW.Cosmos.Proto.SigningInput.encode(input).finish();
    const outputData = this.AnySigner.sign(encoded, this.getCoinType(tx.coinType));
    const output = TW.Cosmos.Proto.SigningOutput.decode(outputData);
    console.log('output.serialized', output.serialized);
}

[punithbm]

@Milerius Got it. In the above request, I missed setting the signing mode. Update the signing mode to protobuf and it's working fine.

Thank you