[SDK]: Emulation error: no response; status code: undefined;

[matthewmaclay]

Describe the bug

Successfully connected wallet via ton connect to TMA, but on confirm transaction see this screens in ton keeper and tg wallet

Expected behavior

Transcation will approve successfully.

Current behavior

Wallet see transaction, but i cant approve it

Steps to Reproduce

-

Environment

└─┬ @tonconnect/ui@2.0.0 └─┬ @tonconnect/sdk@3.0.0 ├── @tonconnect/isomorphic-eventsource@0.0.2 ├── @tonconnect/isomorphic-fetch@0.0.3 └── @tonconnect/protocol@2.2.6

Additional context

No response

[matthewmaclay]

Thanks @thekiba! This happened because I didn't form the payload correctly

      sendTransaction({
        messages: [
          {
            address: process.env.NEXT_PUBLIC_WALLET_ADDRESS as string,
            amount: toNanoTon(0.1),
            payload: btoa(`ID:${order.id}`), // error is here
          },
        ],
        validUntil: Math.floor(Date.now() / 1000) + 120, // 60 sec
      });

And right way is:

const transactionComment = (text: string) => {
  const cell = beginCell()
    .storeUint(0x00000000, 32)
    .storeStringTail(text)
    .endCell();

  const boc = cell.toBoc();
  return boc.toString("base64");
};
tonConnect.sendTransaction({
messages: [
    {
    address: process.env.NEXT_PUBLIC_WALLET_ADDRESS as string,
    amount: toNanoTon(order.amount),
    payload: transactionComment(`ID:${order.id}`),
    },
],
validUntil: Math.floor(Date.now() / 1000) + 120, // 60 sec
});