Errors following blob tx example

[iAmMichaelConnor]

I want to submit blob txs using viem.

I've written a minimal typescript repo that follows this example https://viem.sh/docs/guides/blob-transactions.

The repo's here, with instructions for how to reproduce: https://github.com/iAmMichaelConnor/viem-blobs-example

It's throwing an error when trying to submit the blob. Here's that line of code: https://github.com/iAmMichaelConnor/viem-blobs-example/blob/bef5573523a854325c6cb4e25a753af8b02b51b4/src/index.ts#L39

The error says:

InvalidParamsRpcError: Invalid parameters were provided to the RPC method.
Double check you have provided the correct parameters.

and later:

shortMessage: 'RPC Request failed.',
version: '[email protected]',
cause: { code: -32602, message: 'Failed to decode transaction' },

The data being passed to sendRawTransaction seems to be serialised sensibly. So my current suspicion is that viem might be malformatted the data before sending it to the RPC node?

I'm using Anvil to simulate the chain. I'm guessing Anvil knows how to interpret blob txs?

Any ideas would be much appreciated.

[iAmMichaelConnor]

Oooh it turns out the problem was with Anvil, and not with Viem. The same test works with a Hardhat node.