getBlock with jsonParsed using solana-web3.js throws error

[a26nine]

As we know that Solana is going to activate Versioned Transactions in the upcoming epoch with the support for lookup tables.

This feature activation would affect two methods:

1. getBlock
2. getTransaction

With the new response structure and additional objects, the team has recommended to use jsonParsed encoding instead of json, so that all the transactions account keys including those from lookup tables are found in the accountKeys object itself.

While this is possible when making HTTP POST requests directly, it's not possible (for the getBlock method) using the solana-web3.js library. solana-web3.js has a getParsedTransaction method that is basically getTransaction with jsonParsed, but there's no similar option for getBlock. And, if we pass the encoding parameter as jsonParsed with the GetBlockConfig object of the getBlock method, it throws an error:

StructError: At path: transactions.0.transaction.message.accountKeys.0 -- Expected a string, but received: [object Object]

For e.g.,

const blockData = await solana.getBlock(latestBlock, {
    encoding: 'json',
    maxSupportedTransactionVersion: 0,
});

will throw

Is it possible to add something like getParsedBlock or make changes to the GetBlockConfig to accept jsonParsed encoding?

[a26nine]

#28345 by @jstarry adds a dedicated parsed method getParsedBlock. 🙌🏻