Unable to PublishTransaction

[losh11]

Trying to use LND to broadcast a raw transaction, using the walletkit rpc PublishTransaction.
No matter what I do, LND doesn't seem to be able to see the transaction, looking at the logs I see this:

2025-01-14 09:53:16.932 [ERR] RPCS: [/walletrpc.WalletKit/PublishTransaction]: must provide a transaction to publish
2025-01-14 09:53:16.932 [ERR] RPCS: [/walletrpc.WalletKit/PublishTransaction]: unexpected EOF

Here's how I tried to publish a transaction:

const rpc = await publishLndTransaction(
  create(TransactionSchema, {
    txHex: Buffer.from(rawTx),
    label,
  }),
);

and also like this:

const rpc = await publishLndTransaction({
  txHex: Buffer.from(rawTx),
  label,
});

[hsjoberg]

Hey @losh11!

Hmm strange. Not sure what's going on. What is Buffer and where is it coming from? That doesn't exist in JS or react-native's env as it's a NodeJS API.

I usually convert hex to Uint8Array via this helper function:
https://github.com/hsjoberg/blixt-wallet/blob/c35c09fd43c7a9872212fd2b440056eb219fccdc/src/utils/index.ts#L74-L76

The error message from lnd seems to suggest the input arg is not being sent correctly. Hmm.
https://github.com/lightningnetwork/lnd/blob/4b16c2902ea251eb4d464f9670a10ed04757f065/lnrpc/walletrpc/walletkit_server.go#L666-L669